| high hydrostatic pressure inactivation of total aerobic bacteria, lactic acid bacteria, yeasts in sour chinese cabbage. | this study investigated the inactivation of total aerobic bacteria (tab), lactic acid bacteria (lab), yeasts in sour chinese cabbage (scc) treated by high hydrostatic pressure (hhp). the pressure level ranged from 200 to 600 mpa and the treatment time were 10-30 min. all samples were stored at 4, 27 and 37 degrees c for 90 days. the pressure level of 200 mpa had no significant impact on these microorganisms. the counts of tab were significantly reduced by 2.7-4.0 log(10)cfu/g at 400 mpa and 4.2- ... | 2010 | 20650536 |
| monoclonal antibody produced by heterologous indirect enzyme-linked immunosorbent assay and its application for parathion residue determination in agricultural and environmental samples. | a heterologous indirect enzyme-linked immunosorbent assay (elisa) was developed, which was based on monoclonal antibody (mab) to determine parathion residue in agricultural and environmental samples. eight mabs were produced by introducing the heterologous indirect elisa into the screening procedure. it was shown that these mabs had more broad-reactivity with twenty competitors than that of 5h7 (mab produced by homologous screening). so it became much easier using these new mabs to develop heter ... | 2010 | 20603747 |
| an analytical method for prohexadione in chinese cabbage and apple. | a residual determination method as a regulatory residue method was developed using hplc-uvd for prohexadione residues in chinese cabbage (brassica pekinensis) and apple (malus domestica). the developed method consisted of solid-liquid extraction with acidic acetonitrile and ion-suppression liquid-liquid partitioning, followed by anion exchange cartridge cleanup. the limits of detection and quantitation for the method were 0.005 and 0.02 mg/kg, respectively. the method gave good linearity in the ... | 2011 | 20586105 |
| cryptosporidium oocysts and giardia cysts on salad products irrigated with contaminated water. | a field study in valencia, spain, was done to determine the occurrence of giardia and cryptosporidium on salad products that are frequently eaten raw, such as lettuces and chinese cabbage, and in irrigation waters. four water samples were taken weekly 1 month before harvesting the vegetables. all water samples were analyzed using techniques included in the u.s. environmental protection agency method 1623. standard methods for detecting protozoan parasites on salad vegetables are not available. p ... | 2010 | 20537274 |
| piriformospora indica confers drought tolerance in chinese cabbage leaves by stimulating antioxidant enzymes, the expression of drought-related genes and the plastid-localized cas protein. | piriformospora indica, a root-colonizing endophytic fungus of sebacinales, promotes plant growth and confers resistance against biotic and abiotic stress. the fungus strongly colonizes the roots of chinese cabbage, promotes root and shoot growth, and promotes lateral root formation. when colonized plants were exposed to polyethylene glycol to mimic drought stress, the activities of peroxidases, catalases and superoxide dismutases in the leaves were upregulated within 24h. the fungus retarded the ... | 2010 | 20471134 |
| [effect of the melamine residue in soil on growth of chinese cabbage]. | soil and foliar application of melamine (me) treatments to 'zaoshu 5' chinese cabbage were investigated. the me was degraded very slowly in soil treated with different dosages (40,160 and 800 mg x kg(-1)), and 90 days later the residuals of me were 21.1%, 15.8% and 43.6% respectively. the chinese cabbage could take in exogenously applied me through its root and stem leaf and accumulate it to considerable levels with the increasing applied density. in soil application test, the maximum and minimu ... | 2010 | 20358844 |
| dissipation and evaluation of hexaflumuron residues in chinese cabbage grown in open fields. | the dissipation and residue behavior of hexaflumuron in chinese cabbage ( brassica pekinensis ) under different treatments were investigated at two main cabbage-growing areas in china. the dissipation rates of hexaflumuron in cabbages and soils fit a first-order decay process very well. the dissipation times for 50% of the hexaflumuron in cabbage and soil were 3.37 and 3.01 days from hunan province and 5.58 and 3.68 days in tianjin, respectively, when chinese cabbage was treated with 180 g of ac ... | 2010 | 20345168 |
| retracted: long-term copper toxicity in apple trees (malus pumila mill) and bioaccumulation in fruits. | the following article from environmental toxicology, 'long-term copper toxicity in apple trees (malus pumila mill) and bioaccumulation in fruits' by bai-ye sun, shi- hong kan, yan-zong zhang, jun wu, shi-huai deng, chun-sheng liu and gang yang, published online on january 15, 2010 in wiley interscience (www.interscience.wiley.com; doi: 10.1002/tox.20565), has been retracted by agreement between the authors, the journal editor in chief, dr. paul tchounwou, and wiley periodicals, inc. the retracti ... | 2010 | 20082444 |
| a disposable organophosphorus pesticides enzyme biosensor based on magnetic composite nano-particles modified screen printed carbon electrode. | a disposable organophosphorus pesticides (ops) enzyme biosensor based on magnetic composite nanoparticle-modified screen printed carbon electrodes (spce) has been developed. firstly, an acetylcholinesterase (ache)-coated fe(3)o(4)/au (gmp) magnetic nanoparticulate (gmp-ache) was synthesized. then, gmp-ache was absorbed on the surface of a spce modified by carbon nanotubes (cnts)/nano-zro(2)/prussian blue (pb)/nafion (nf) composite membrane by an external magnetic field. thus, the biosensor (spce ... | 2010 | 22315558 |
| copper exposure interferes with the regulation of the uptake, distribution and metabolism of sulfate in chinese cabbage. | exposure of chinese cabbage (brassica pekinensis) to enhanced cu(2+) concentrations (1-10 microm) resulted in leaf chlorosis, a loss of photosynthetic capacity and lower biomass production at > or = 5 microm. the decrease in pigment content was likely not the consequence of degradation, but due to hindered chloroplast development upon cu exposure. the cu content of the root increased with the cu(2+) concentration (up to 40-fold), though only a minor proportion (4%) was transferred to the shoot. ... | 2010 | 20022138 |
| direct determination of atrazine residue on chinese cabbage leaf using desorption electrospray ionization-tandem mass spectrometry and its application for diagnosing atrazine drift phytotoxicity. | a method was developed for the determination of atrazine residue and phytotoxicity on a nontargeted plant, the chinese cabbage. the analysis was done by desorption electrospray ionization combined with ion trap ms/ms. within the range of 63.13 to 2525 pg/mm2 of atrazine on the specimen, the linear relationship of the average peak area of extracted product ion m/z 174 (y) versus the surface concentration of atrazine (x) was estimated as y = 5066.5x - 85779; r was 0.9994, with rsd between 3.37 and ... | 2013 | 19916397 |
| variations in cadmium accumulation among chinese cabbage cultivars and screening for cd-safe cultivars. | variations in cadmium accumulation and translocation among 40 chinese cabbage cultivars were studied to identify and screen out cd-safe cultivars (cscs), i.e. cultivars with low enough accumulation of cd in their edible parts even when grown in contaminated soils. it was observed in the pot-culture experiment that there was a significant difference (p<0.05) in shoot cd concentrations under three cd treatments (1.0, 2.5 and 5.0mg/kg), with corresponding average values 0.88, 4.45 and 7.76 mg/kg, r ... | 2010 | 19775811 |
| [effects of different fertilization modes on vegetable growth, fertilizer nitrogen utilization, and nitrogen loss from vegetable field]. | a field experiment with chinese cabbage, water spinach, and three-colored amaranth cropped three times in one year was conducted to study the effects of seven fertilization modes, i.e., none fertilization, basal application of chemical fertilizers, 1/2 basal application and 1/2 top-dressing of chemical fertilizers, basal application of chemical fertilizers and dicyandiamide, 1/2 basal application and 1/2 top-dressing of chemical fertilizers and dicyandiamide, 1/2 basal application and 1/2 top-dr ... | 2009 | 19637603 |
| uptake by roots and translocation to shoots of polychlorinated dibenzo-p-dioxins and dibenzofurans in typical crop plants. | root uptake and subsequent translocation of polychlorinated dibenzo-p-dioxins and dibenzofurans (pcdd/fs) in 12 agricultural crops were comparatively investigated. all crop plants were exposed hydroponically to a mixture of three kinds of dioxin congeners over 4d. the root concentration factor (rcf) of dioxin showed a logarithmic correlation with extractable lipid content in plant root. on the assumption that the dioxin escaping via gas phase from nutrient solution in the closed container can ev ... | 2009 | 19541345 |
| identification of chinese cabbage genotypes with low cadmium accumulation for food safety. | the pot-culture experiment and field studies were conducted to screen out and identify cadmium (cd) excluders from 40 chinese cabbage genotypes for food safety. the results of the pot-culture experiment indicated that the shoot cd concentrations under three treatments (1.0, 2.5 and 5.0 mg cd kg(-1) soil) varied significantly (p<0.05), with average values of 0.70, 3.07 and 5.83 mg kg(-1), respectively. the cd concentrations in 12 cabbage genotypes were lower than 0.50 mg kg(-1). the enrichment fa ... | 2009 | 19188009 |
| root uptake of radionuclides following their acute soil depositions during the growth of selected food crops. | greenhouse experiments were performed to investigate the root uptake of radionuclides following their acute soil deposition during the growth of several food crops. for this purpose, the soil under the standing plants was contaminated without any direct contamination of their stems or leaves. the intention of this design was to differentiate foilar uptake and root uptake subsequent to a radionuclide deposition during the vegetation period. soil-to-plant transfer of a radionuclide was quantified ... | 2009 | 19188006 |
| analysis of heavy metals during composting of the tannery sludge using physicochemical and spectroscopic techniques. | the major limitation of direct application of tannery sludge compost in agriculture is the total heavy metal contents and their bioavailability to the soil-plant system. this study focused on the heavy metal characterization and the influence of changing the physicochemical properties of the medium throughout the composting on the concentrations, bioavailability or chemical forms of cr, cu, zn, pb and cd in tannery sludge. the study shows that throughout the 60 days of composting, physicochemica ... | 2009 | 18990495 |
| determination of pyrethroid pesticide residues in vegetables by pressurized capillary electrochromatography. | a simple and rapid pressurized isocratic capillary electrochromatography (pcec) method has been developed to separate six pyrethroid pesticides. the effects of ph of buffer, organic solvent content, buffer concentrations and applied voltage on the separation of six pyrethroids were investigated. under the optimized conditions, the pcec method developed allows baseline separation of a complex mixture of six pyrethroids in <20 min. the method is applied to the analysis of these pesticide residues ... | 2006 | 18970538 |
| effects of the simultaneous application of potassium and calcium on the soil-to-chinese cabbage transfer of radiocesium and radiostrontium. | pot experiments were carried out in a greenhouse to investigate how effectively the transfer of radiocesium and radiostrontium from soil to chinese cabbage could be reduced by applying k and ca simultaneously to the soil. the sources of these elements were kcl and ca(oh)(2) at agrochemical grades. varying dosages of k and ca were tested for an acid loamy soil treated with a mixed solution of (137)cs and (85)sr at two different times - 3 d before sowing and 32 d after sowing. for the pre-sowing d ... | 2008 | 18945527 |
| enantioselective degradation of fipronil in chinese cabbage (brassica pekinensis). | chiral pesticide enantiomers often show different bioactivity and residual toxicity, but this property is usually ignored when evaluating the environmental risk and public safety. in this study, a convenient and precise chiral method was developed and validated for measuring fipronil enantiomers in chinese cabbage (brassica pekinensis) based on a high-performance liquid chromatography (hplc) using (r,r) whelk-o 1 column. then the proposed method was successfully applied to the study of enantiose ... | 2008 | 26049232 |
| single and joint toxicity of cypermethrin and copper on chinese cabbage (pakchoi) seeds. | the single and joint effects of cu(2+) and cypermethrin (cpm) on the seed germination and the elongation of root and shoot of pakchoi were investigated. the results showed that in solution low concentrations of cu(2+) could accelerate the germination rate of pakchoi, whereas high concentrations of cu(2+) could inhibit it. cpm could strongly inhibit the germination of pakchoi in solution. however, in the joint toxicity effect, cpm reduced the phytotoxicity of cu(2+) on the germination of pakchoi ... | 2009 | 18692956 |
| plantgi: a database for searching gene indices in agricultural plants developed at niab, korea. | the plant gene index (plantgi) database is developed as a web-based search system with search capabilities for keywords to provide information on gene indices specifically for agricultural plants. the database contains specific gene index information for ten agricultural species, namely, rice, chinese cabbage, wheat, maize, soybean, barley, mushroom, arabidopsis, hot pepper and tomato. plantgi differs from other gene index databases in being specific to agricultural plant species and thus comple ... | 2008 | 18685722 |
| identification and quantitation of auxins in plants by liquid chromatography/electrospray ionization ion trap mass spectrometry. | auxin is an important phylohormone, which regulates specific physiological responses such as division, elongation and differentiation of cells. a new method using liquid chromatography/electrospray ionization ion trap mass spectrometry (lc/esi-itms) has been developed for identification and quantitation of four auxins. under the optimum conditions, four auxins (indole-3-acetic acid, indole-3-propionic acid, indole-3-butyric acid and 1-naphthylacetic acid) were completely separated and quantitate ... | 2008 | 18655000 |
| dissipation behavior of lufenuron, benzoylphenylurea insecticide, in/on chinese cabbage applied by foliar spraying under greenhouse conditions. | chinese cabbage has long been consumed as a staple food by the koreans in various forms of fresh, salted, or fermented as kimchi. to fulfill the off-season demand for this crop, it has become a common practice to be cultivated under greenhouse conditions. since pesticide residues in/on leafy vegetables have strongly concerned with food safety in the korean society, the changes of lufenuron residues, in/on chinese cabbage applied by foliar spraying under greenhouse conditions was investigated. lu ... | 2008 | 18592122 |
| biogeochemical transfer and dynamics of iodine in a soil-plant system. | radioactive iodide (125i) is used as a tracer to investigate the fate and transport of iodine in soil under various leaching conditions as well as the dynamic transfer in a soil-plant (chinese cabbage) system. results show that both soils (the paddy soil and the sandy soil) exhibit strong retention capability, with the paddy soil being slightly stronger. most iodine is retained by soils, especially in the top 10 cm, and the highest concentration occurs at the top most section of the soil columns ... | 2009 | 18563587 |
| mechanism of iodine uptake by cabbage: effects of iodine species and where it is stored. | iodine-enhanced vegetable has been proven to be an effective way to reduce iodine deficiency disorders in many regions. however, the knowledge about what mechanisms control plant uptake of iodine and where iodine is stored in plants is still very limited. a series of controlled experiments, including solution culture, pot planting, and field experiments were carried out to investigate the uptake mechanism of iodine in different forms. a new methodology for observing the iodine distribution withi ... | 2008 | 18521548 |
| vapor-phase toxicity of butylbenzyl phthalate to three plant species: white mustard, chinese cabbage, and white clover. | during the manufacture of products containing butylbenzyl phthalate (bbp), low emissions to the air may occur. due to potential exposure of terrestrial communities to bbp vapors, phytotoxicity tests were conducted using chinese cabbage, white mustard, and white clover. no significant effects on shoot growth were observed at the higher bbp vapor-phase concentration tested, which measured 5.7 microg/m(3). the overall practicality of vapor-phase testing of chemicals with very low vapor pressures is ... | 2008 | 18465066 |
| event-specific qualitative and quantitative polymerase chain reaction methods for detection of genetically modified rapeseed ms8xrf3 based on the right border junctions. | ms8xrf3 is a genetically modified rapeseed hybrid which is widely cultivated in canada and exported to some other countries for production of foodstuffs or fodder. in this study, the genomic sequences flanking the right borders of the integrated transgenic sequences in the ms8xrf3 genome were characterized and showed high similarities with the bacterial artificial chromosome clone of chinese cabbage. event-specific qualitative polymerase chain reaction (pcr) methods were established with the pri ... | 2008 | 18376596 |
| cruciferous vegetables, the gstp1 ile105val genetic polymorphism, and breast cancer risk. | cruciferous vegetables are the primary source of isothiocyanates and other glucosinolate derivatives that are known to induce phase ii detoxifying enzymes, including glutathione s-transferases (gsts). | 2008 | 18326615 |
| experience-induced habituation and preference towards non-host plant odors in ovipositing females of a moth. | in phytophagous insects, experience can increase positive responses towards non-host plant extracts or induce oviposition on non-host plants, but the underlying chemical and behavioral mechanisms are poorly understood. by using the diamondback moth, plutella xylostella, its host plant chinese cabbage, and a non-host plant chrysanthemum morifolium, as a model system, we observed the experience-altered olfactory responses of ovipositing females towards volatiles of the non-host plant, volatiles of ... | 2008 | 18253797 |
| development of extraction procedures for the determination of imidacloprid: application to residue analysis and dynamics of two formulations in chinese cabbage. | this study was undertaken to investigate whether an additional column clean-up procedure can affect the accuracy of an analytical method developed for the determination of imidacloprid residues in chinese cabbage. thereafter, the residue levels and the degradation rates of imidacloprid were investigated in experimental chinese cabbage plots after treatment with two different commercial formulations: emulsifiable concentrate (ec) and wettable powder (wp). the analyte was determined using high-per ... | 2008 | 18205138 |
| [uptake 14co2 from air and accumulation of 14c in chinese cabbage]. | uptake 14co2 from air and accumulation of 14c in the chinese cabbage were studied by using the isotope-tracer techniques in order to get a better understanding of the environmental behavior of 14co. the results show that the 14co2, which was uptaken from the air by the leaf photosynthesis, would be sent to the other part of the chinese cabbage and form a accumulating trend. the specific activity of 14c in every tissue increases linearly with time, and the increasing rate is in the range of 95.3 ... | 2007 | 17926415 |
| dietary habits and risk of ovarian cancer death in a large-scale cohort study (jacc study) in japan. | the japan collaborative cohort (jacc) study was established in 1988-1990 and consisted of 46,465 men and 64,327 women observed until the end of 2003. a self-administered food frequency questionnaire was used as a baseline survey, and associations of dietary habits with the risk of ovarian cancer death were evaluated, taking into consideration age, menstrual and reproductive, anthropometric, and lifestyle factors. during the observation period, 77 women died of ovarian cancer. hazard ratios for d ... | 2007 | 17571946 |
| a conserved role of short vegetative phase (svp) in controlling flowering time of brassica plants. | the control of flowering time in brassica plants is an important approach for improving productivity, as vegetative tissues are not produced after the floral transition in brassica plants. in order to determine the feasibility of modulating flowering time in chinese cabbage plants, genes homologous to arabidopsis short vegetative phase (atsvp) were isolated from spring-type and fall-type cultivars of chinese cabbage plants, and their functions were determined. their deduced amino acid sequences ... | 2016 | 17566572 |
| [effects of weak light on photosynthetic characteristics and chloroplast ultrastructure of non-heading chinese cabbage]. | the study with two varieties of non-heading chinese cabbage shade-tolerant 'aiwang' and shade-sensitive 'lüyou' showed that after shading, the total chlorophyll and chlorophyll b contents of 'aiwang' went up greatly, but the net photosynthetic rate (pn) , light compensation point (lcp), light saturation point (lsp), apparent quantum yield (aqy) and carboxylation efficiency (ce) of both 'aiwang' and 'liiyou' all went down, and the decline of all test parameters except lcp was slighter for 'aiwang ... | 2007 | 17450739 |
| fate of hto following its acute soil deposition at different growth stages of chinese cabbage. | lysimeter experiments were carried out in a greenhouse to study the fate of hto following its soil deposition at different growth stages of chinese cabbage. an hto solution was applied to the surface of an acidic sandy soil at a time before, and four different times after, sowing. the transfer of hto to the plants was quantified with the areal transfer factor (tfa, m2 kg(-1)-fresh) defined as the ratio of the plant concentration at harvest to the areal activity deposition. in the four post-sowin ... | 2007 | 17418920 |
| methomyl residue on chinese cabbage grown under greenhouse conditions. | | 2006 | 17123010 |
| [toxic effects of monosodium glutamate wastewater on crop seed germination and root elongation]. | to make a comprehensive assessment on monosodium glutamate wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, chinese cabbage and tomato by using the wastewater discharged from different processing phases of monosodium glutamate production. the results showed that there were significantly positive linear relationships between the inhibition rates of wheat seed germination and root elongation and the cod(cr) of mother liquor ... | 2006 | 17044508 |
| tube-immunoassay for rapid detection of carbaryl residues in agricultural products. | an antibody-based rapid, quantitative, and qualitative tube enzyme-linked immunosorbent assay (tube-elisa) was developed and used to determine carbaryl (1-naphthyl methylcarbamate) residues in agricultural products (apple, chinese cabbage, rice, and barley). the tube-elisa is a competitive immunoassay in which the antibody is coated in the polystyrene tube, with a dynamic range between 0.7 and 46.3 microg kg(-1). carbaryl was extracted from each agricultural sample by hand-shaking with methanol ... | 2006 | 16785176 |
| [evaluation on environmental quality of pb, zn and cu contents in vegetable plantation soils and vegetables in hangzhou suburb]. | contents of heavy metals (pb, zn, cu) in soils from 4 main vegetable plantations in hangzhou suburb were investigated to evaluate environmental quality of heavy metals of soils and vegetables. different evaluation methods and evaluation standards of heavy metals were used for comparison. kriging method was applied to study the spatial variability of heavy metals in soil-vegetable system. the distribution maps of the spatial variability of heavy metals in soil-vegetable system in jianggan distric ... | 2006 | 16767999 |
| phytotoxic effects of copper on nitrogen metabolism and plant growth in brassica pekinensis rupr. | copper (cu) from various anthropogenic and natural sources is one of the major heavy metal contaminants in the environment. to study cu-induced nitrogen (n) metabolism damage in the popular vegetable chinese cabbage (brassica pekinensis rupr.), aquatic culture experiments with this plant were performed. two cu levels (0.3 micromol/l (control) and 10.3 micromol/l) and two n levels (0.05- and 1-fold hoagland's solution) were used for the aquatic culture experiments. the results demonstrated advers ... | 2006 | 16616956 |
| experience induces a phytophagous insect to lay eggs on a nonhost plant. | experience of nonhost plants by phytophagous insects may alter their foraging and oviposition responses to these plants. using the diamondback moth (dbm) plutella xylostella (l.), its host-plant chinese cabbage, and a nonhost-plant pisum sativum (pea) as a model system, we examined whether experience of the nonhost plant by adults can induce oviposition on the nonhost plant. naive dbm females did not accept pea for oviposition in either no-choice or choice conditions, whereas females with prior ... | 2006 | 16586034 |
| lead toxicity in brassica pekinensis rupr.: effect on nitrate assimilation and growth. | lead is a major heavy-metal contaminant in the environment that has various anthropogenic and natural sources. to study the phytotoxic effects of pb on the popular vegetable chinese cabbage (brassica pekinensis rupr.) via depression of nitrogen assimilation, pot culture experiments with three concentrations of treatment with pb (0, 4, and 8 mmol/kg dry soil) were carried out. our results demonstrated adverse effects of pb on nitrogen assimilation and plant growth. the addition of pb in the soil ... | 2006 | 16528690 |
| phytotoxicity assessment of phenanthrene, pyrene and their mixtures by a soil-based seedling emergence test. | seedling emergence tests were conducted in a meadow brown soil using five plant species (i.e., chinese cabbage, green onion, tomato, turnip and wheat) to determine the phytotoxicity of phenanthrene, pyrene and their mixtures. the soil was amended with up to 1000 mg/kg soil of phenanthrene or 600 mg/kg soil of pyrene. seedling emergence and root growth were measured. the results indicated that root elongation was more sensitive than seedling emergence. root length decreased with increasing phenan ... | 2005 | 16158583 |
| enzyme immunoassay for the determination of carbaryl residues in agricultural products. | carbaryl is one of the most important n-methyl carbamate insecticides used all over the world. to determine carbaryl residues in agricultural products (apple, pear, chinese cabbage, rice and barley), a competitive enzyme-linked immunosorbent assay (elisa) method was employed, and a simple and efficient extraction method for the rapid detection of carbaryl in agricultural products was developed with recoveries greater than 90%. after liquid extraction, sample extracts diluted with buffer were ana ... | 2005 | 16147429 |
| dietary habits and risk of urothelial cancer incidence in the jacc study. | the relationships between dietary habits and urothelial cancer have been discussed in many epidemiologic studies, however, they have not been sufficiently elucidated. in the present study, the associations of dietary habits with the risk of urothelial cancer incidence were evaluated taking into consideration sex, age, and smoking habits. | 2005 | 16127233 |
| isotope characteristics of vegetables and wheat from conventional and organic production. | multielement isotope ratio analysis was checked for its suitability as a means for the discrimination between agricultural products from integrated/conventional or organic production, respectively. differences were mainly found for delta15n-values. paprika and tomatoes from organic production in greenhouses showed delta15n-values above+7 per thousand, whereas corresponding products from conventional cultivation had delta15n-values near 0 per thousand. lettuce, onions, cabbage and chinese cabbage ... | 2005 | 16126518 |
| joint effects of acetochlor and urea on germinating characteristics of crop seeds. | in order to evaluate ecological risk of agrochemicals in common use, joint toxic effects of acetochlor and urea on germinating characteristics of chinese cabbage (brassica pekinensis rupr) seeds were investigated using the water-culture method and the soil-culture method. the results indicated that excessive application of acetochlor and urea, when the concentrations were higher than 31.3 mg x kg(-1) for acetochlor and 500 mg x kg(-1) for urea, had strong inhibitory effects on the rate of seed g ... | 2005 | 16089323 |
| tritium levels in chinese cabbage and radish plants acutely exposed to hto vapor at different growth stages. | to simulate an acute exposure of chinese cabbage and radish plants to airborne hto, the potted plants were exposed to hto vapor under semi-outdoor conditions for 1h at different times from the early to late growth stages. the plants were grown outdoors and the plant tritium was measured at the end of an exposure (h(0)) and at harvest. the leaf tissue free water tritium (tfwt) concentrations at h(0) were considerably lower than estimated equilibrium concentrations. in the leaves of chinese cabbag ... | 2005 | 15936121 |
| effects of sewage sludge compost application on crops and cropland in a 3-year field study. | composted sewage sludge can be applied to cropland to supply nutrients and improve soil physical properties. however, farmers are much concerned about heavy metal accumulation in cropland and heavy metal availability for crops. a 3-year field study was carried out in this study to investigate the effects of sewage sludge compost (ssc) application on the heavy metal accumulation in cropland soil, rapeseed germination and plumelet development, and yields of barley and chinese cabbage, compared wit ... | 2005 | 15857637 |
| [simulation of plutella xylostella population control by granulosis virus]. | by means of the life table of acting factors combinations and the theory of modern population system control, this paper evaluated the efficacy of different combinations of application dosage and times of granulosis virus on plutella xylostella control. the results showed that with gradually recovered natural enemies, the second generation of plutella xylostella in the field of spring flowering chinese cabbage would increase 4.1 times if no control methods were carried out to the first generatio ... | 2005 | 15852972 |
| developing a vitamin greenhouse for the life support system of the international space station and for future interplanetary missions. | in order to evaluate the effects of gravity on growing plants, we conducted ground based long-term experiments with dwarf wheat, cultivar apogee and chinese cabbage, cultivar khibinskaya. the test crops had been grown in overhead position with hps lamp below root module so gravity and light intensity gradients had been in opposite direction. plants of the control crop grew in normal position under the same lamp. both crops were grown on porous metallic membranes with stable -1 kpa matric potenti ... | 2004 | 15846885 |
| isolation and structures of acremolactones b and c, novel plant-growth inhibitory gamma-lactones from acremonium roseum i4267. | novel acremolactones b and c were isolated from the acremolactone a-producing acremonium roseum i4267. the structure of acremolactone b having a phenylpyridyl gamma-lactone was elucidated by spectroscopic methods. it showed plant growth inhibitory activity toward chinese cabbage seedlings. the congener of acremolactone c having a phenylcyclopentenone gamma-lactone showed weak activity. | 2004 | 15618640 |
| [investigation of pesticide residues in foods distributed in kitakyushu city]. | we investigated 160 kinds of pesticide residues in 715 samples of 116 kinds of foods distributed in kitakyushu city. sixty kinds of pesticides were detected in 55 kinds of foods (204 samples) in the range of 0.002-22 mg/kg. five kinds of pesticides in 7 samples violated the residue standards and the indication of "unused". the detection ratios of unregulated pesticide in domestic and imported foods were 27.8 and 33.0%, respectively. iprodione, dicofol, diethofencarb, procymidone and chlorfenapyr ... | 2004 | 15272606 |
| prediction of phenanthrene uptake by plants with a partition-limited model. | the performance of a partition-limited model on prediction of phenanthrene uptake by a wide variety of plant species was evaluated using a greenhouse study. the model predictions of root or shoot concentrations for tested plant species were all within an order of magnitude of the observed values. modeled root concentrations appeared to be more accurate than modeled shoot concentrations. the differences of simulated and experimented concentrations of phenanthrene in roots and shoots of three repr ... | 2004 | 15261414 |
| changes in nitrate and nitrite content of four vegetables during storage at refrigerated and ambient temperatures. | the nitrate and nitrite contents of four kinds of vegetables (spinach, crown daisy, organic chinese spinach and organic non-heading chinese cabbage) in taiwan were determined during storage at both refrigerated (5 +/- 1 degrees c) and ambient temperatures (22 +/- 1 degrees c) for 7 days. during storage at ambient temperature, nitrate levels in the vegetables dropped significantly from the third day while nitrite levels increased dramatically from the fourth day of storage. however, refrigerated ... | 2004 | 15204555 |
| cruciferous vegetables, mushrooms, and gastrointestinal cancer risks in a multicenter, hospital-based case-control study in japan. | we assessed the possible association of gastrointestinal cancers with cruciferous vegetables and mushrooms in a multicenter, hospital-based case-control study in an agricultural area of japan. one hundred forty-nine cases and 287 controls for stomach cancer and 115 cases and 230 controls for colorectal cancer were matched by age, sex, and residential area. in stomach cancer, the protective effect of vegetables (consumption of total vegetable) was obscure, but it became clearer when we examined s ... | 2003 | 14690789 |
| development of a food composition database for the estimation of dietary intakes of glucosinolates, the biologically active constituents of cruciferous vegetables. | evidence indicates that cruciferous vegetables are protective against a range of cancers with glucosinolates and their breakdown products considered the biologically active constituents. to date, epidemiological studies have not investigated the intakes of these constituents due to a lack of food composition databases. the aim of the present study was to develop a database for the glucosinolate content of cruciferous vegetables that can be used to quantify dietary exposure for use in epidemiolog ... | 2003 | 13129476 |
| [structure and function of several intercropping ecosystems in newly built orchard]. | sloping wildland is the important potential land resource in china. structures and functions of five optimized models selected from more than 10 intercropping patterns in the newly built orchards in the uncultivated sloping field were analyzed in this paper. the results showed that organic matter was increased by 5-20%, total n by 7-40%, total p by 8-70%, and total k by 15-80% yearly. considering its benefit in soil and water conservation, the intercropping model of peanut and autumn soybean was ... | 2003 | 12920888 |
| isolation of a napin-like polypeptide with potent translation-inhibitory activity from chinese cabbage (brassica parachinensis cv green-stalked) seeds. | a heterodimeric napin-like polypeptide was isolated from brassica parachinensis seeds with a procedure involving ion exchange chromatography on deae-cellulose, affinity chromatography on affi-gel blue gel, fplc-ion exchange chromatography on mono s and fplc-gel filtration on superdex 75. the n-terminal sequence of the 5 kda subunit of the polypeptide (pagpfripkkrkkee) showed high homology with other 2s storage proteins like napins and albumins. the polypeptide potently inhibited translation in a ... | 2003 | 12916641 |
| biochemical and physiological changes in plants as a result of different sonic exposures. | the effects of two different sonic exposures on two vegetables, namely chinese cabbage and cucumber at two growth stages, including seedlings and mature plants were investigated. the 3 h exposures included either 20 khz sound waves or "green music" that comprised classic music and natural sounds such as those of birds, insects, water, etc. analysis of variance between groups (anova) was used to determine the appropriate statistics parameters for the different treatments. both exposures caused si ... | 2003 | 12788223 |
| [landscape ecological studies on autumnal chinese cabbage fields in shenyang city suburb. ii. relationship between chinese cabbage field patches and their neighboring landscape elements]. | the relationship between autumnal chinese cabbage patches and their neighboring other lanascape elements were studied in shenyang suburb. the groups and quantities of arthropods moving through a boundary between a chinese cabbage patch and its neighboring corn patch in certain period, were investigated and the 7 oders of arthropods moving through the boundary with an average flow of 10.3 individuals.m-1.d-1 were observed. the changes of falling dust rates on a chinese cabbage patch near a countr ... | 2002 | 12682968 |
| [landscape ecological studies on autumnal chinese cabbage fields in shenyang city suburb. i. features of autumnal chinese cabbage field patches]. | some typical patches of autumnal chinese cabbage fields in the agricultural landscapes of shenyang city suburb were investigated, and their basic features, such as areas, shapes, neighborings and connections, were recorded. their mosaic features were also analyzed and discussed. in the region of less 5 km distance from city, many chinese cabbage patches neighbored each other and connected to highways, while in the region of 5-10 km distance from city, they neighbored with corn patches and connec ... | 2002 | 12682967 |
| capacity and degree of iodine absorbed and enriched by vegetable from soil. | to understand the biogeochemical transfer of iodine, the absorbability and bioaccumulation of iodine in tested vegetables (radish, spinach and chinese cabbage) are examined by applying iodic fertilizer composed of kelp and diatomaceous earth. the experimental results show that when iodine in soil is not excessive, the concentrations of iodine in tested vegetables increase as the content of iodine in soil increases. the absorbability and enrichment degree of iodine in various vegetables and in va ... | 2003 | 12602613 |
| [the problem of developing a lettuce greenhouse for the international space station and future interplanetary missions]. | in order to evaluate the effects of gravity on growing plants, we conducted ground-based long-term experiments with dwarf wheat (cultivar "apogee usu") and chinese cabbage (cultivar "khibinskaja"). the test crop had been grown in overhead position with hps lamp below the root module so that gravity and light gradients were in opposite direction. plants of the control crop grew in normal position under the same lamp. both crops were grown on porous metallic membranes with stable--1 kpa water pote ... | 2002 | 12572116 |
| nutrition influence on copper accumulation by brassica pekinensis rupr. | effect of nutrition status in the growth medium on cu accumulation and plant growth were tested in brassica pekinensis grown in hydroponic culture in a cultural facility. cu concentration in the roots and shoots increased with increasing external cu in the culture solution. on the other hand, it decreased with increasing hoagland's solution (hs) strength. interaction between external cu and hs strength was also observed to affect cu concentration in the tissues. a low level of external cu could ... | 2002 | 12568454 |
| four case reports of families with esophageal cancer in a high-risk region on the guangdong chaoshan coast of china. | four families with a history of esophageal cancer were studied and their family trees analyzed. all the families had lived in chaoshan for about 20 generations, speak chanshan dialect, and generally have a predilection for drinking scalding gong fu tea and eating pickled chinese cabbage. the majority of the esophageal cancer patients of the first generation were diagnosed 40 or 50 years ago after presenting with the typical symptom of dysphagia, whereas patients of the second and third generatio ... | 2002 | 12445002 |
| [effect of covering with new soil on reducing the accumulation of radio-strontium in plant]. | effects of covering with new soil on reducing the accumulation of 89sr by soybean and chinese cabbage (especially in the edible part of crop) were studied on simulated pollutants by using the isotope-tracer techniques. the results showed that the absorption and accumulation of 89sr in the soybean and chinese cabbage could be decreased significantly by covering soil polluted 89sr with new soil. the specific activity of 89sr in bean hull, bean straw, bean root and chinese cabbage were reduced by 8 ... | 2002 | 12371094 |
| field-simulator studies of insecticide resistance to dimethylcarbamates and pyrethroids conferred by metabolic- and target site-based mechanisms in peach-potato aphids, myzus persicae (hemiptera: aphididae). | a range of insecticides was applied at recommended application rates against populations of myzus persicae (sulzer) carrying various combinations of three insecticide resistance mechanisms (carboxylesterase-based metabolic resistance and two target-site mechanisms, known as mace and kdr), supported on either chinese cabbage or potatoes in field simulator cages. patterns of response were similar on both host species. mace conferred extreme resistance to pirimicarb and triazamate (dimethylcarbamat ... | 2002 | 12192906 |
| joint enhancement of lead accumulation in brassica plants by edta and ammonium sulfate in sand culture. | when edta was added alone in the pb-contaminated sand, the plant biomass and the total pb amount in plant decreased in both species, brassica pekinensis and b. juncea var. multiceps, though the shoot pb amount increased. in contrast, when (nh4)2so4 was added alone in the pb-contaminated sand, little effect was observed on the shoot pb amount, though the root pb amount was significantly increased in b. juncea var. multiceps. when amending edta and (nh4)2so4 in combination, however, the shoot pb a ... | 2002 | 12046290 |
| [comparative study on ecotoxicological indexes of crops exposure to reactive x-3b red dye]. | ecotoxicological indexes of wheat, chinese cabbage and rice exposed to reactive x-3b red dye were studied using the experimental method of crop seed exposure. the results showed that reactions of the three crops to reactive x-3b red dye were different from each other. based on the inhibition of seed gemination, the half effect concentration(ic50) of wheat, chinese cabbage and rice was 8965, 7010 and 7514 mg.l-1. based on the inhibition of root elongation, the ic50 of wheat, chinese cabbage and r ... | 2002 | 11993111 |
| [eco-toxicological effects of heavy metals on the inhibition of seed germination and root elongation of chinese cabbages in soils]. | the eco-toxicity effects of individual cu, zn, pb and cd on the inhibition of seed germination and root elongation of chinese cabbages (brassica pekimensis) were tested in four types of soils (red loam soils, meadow brown soils, chestnut soils and dark brown soils) and water solution. the combined effects of heavy metals pollution were determined with meadow brown soils. results indicated that with same concentration, the inhibition rates of heavy metals on root elongation of chinese cabbages ar ... | 2002 | 11987391 |
| accumulation of zn, cd, cu, and pb in chinese cabbage as influenced by climatic conditions under protected cultivation. | accumulation of heavy metals from agricultural soils contaminated by low levels heavy metals has important implications in the understanding of heavy metal contamination in the food chain. through field experiments (1994-1996), the influence of thermal regime under different treatments on the accumulation of zinc, cadmium, copper, and lead in chinese cabbage [brassica pekinensis (lour) rupr. cv. nagaoka 50] grown in a calcareous fluvisol (xerofluvent) in granada (southern spain) was examined. tw ... | 2002 | 11902941 |
| [effect of green and yellow vegetables on serum carotenoid in children]. | to assay the effect of green and yellow vegetables on serum carotenoid concentration and its relation to serum retinol level in children. | 2000 | 11860907 |
| [arthropod diversity in leafy vegetable field and sampling technology]. | two sampling units (plant and quadrat) and two sampling methods (random and fixed) were adopted to compare the variation degree of the diversity of arthropod communities in different chinese cabbage fields. the results show that a lower variation degree was found when the random sampling method was adopted with quadrat (0.11 m2) as sampling unit at seedling stage and with plant as sampling unit from growing to mature stage. the community diversity was relatively steady, when the critical number ... | 2000 | 11767537 |
| the response of shoot accumulation of trace elements in chinese cabbage to microclimate modification. | in three consecutive years of field experiments (1994-96), three different environmental conditions for the growth of chinese cabbage (brassica pekinensis (lour) rupr. cv. nagaoka 50) were established by using two cover treatments (t1 and t2) and a control uncovered cultivation (t0). the t1 [50 microm polyethylene cover; 20 degrees c air temperature; 61.9% relative moisture; 207 wm(-2) irradiance] and t2 [a 17 gm(-2) non-woven fleece; 18 degrees c; 63.4%; 205 wm(-2) gave rise to differences in e ... | 2001 | 11688678 |
| enhanced accumulation of lead in brassica pekinensis by soil-applied chloride salts. | | 2001 | 11381314 |
| cdna cloning and expression of an aminoalcoholphosphotransferase isoform in chinese cabbage. | aminoalcoholphosphotransferase (aapt) catalyzes the synthesis of phosphatidylcholine and phosphatidylethanolamine from diacylglycerol plus a cdp-aminoalcohol such as cdp-choline or cdp-ethanolamine. previously we reported the cloning of a cdna encoding this enzyme from chinese cabbage roots, and suggested the presence of possible isoforms [min et al. (1997) j. plant biol. 40: 234]. we now report the cdna cloning and expression analysis of a second aapt from chinese cabbage. this aapt cdna, aapt2 ... | 2000 | 11100782 |
| leafy head formation of the progenies of transgenic plants of chinese cabbage with exogenous auxin genes. | the experiment was performed to evaluate the progenies of plant lines transgenic for auxin synthesis genes derived from ri t-dna. four lines of the transgenic plants were self-crossed and the foreign auxin genes in plants of t5 generation were confirmed by southern hybridization. two lines, d1232 and d1653, showed earlier folding of expanding leaves than untransformed line and therefore had early initiation of leafy head. leaf cuttings derived from plant of transgenic line d1653 produced more ad ... | 2000 | 10896176 |
| chemical methods and phytoremediation of soil contaminated with heavy metals. | the effects of chemical amendments (calcium carbonate (cc), steel sludge (ss) and furnace slag (fs)) on the growth and uptake of cadmium (cd) by wetland rice, chinese cabbage and wheat grown in a red soil contaminated with cd were investigated using a pot experiment. the phytoremediation of heavy metal contaminated soil with vetiver grass was also studied in a field plot experiment. results showed that treatments with cc, ss and fs decreased cd uptake by wetland rice, chinese cabbage and wheat b ... | 2000 | 10819205 |
| molecular characters and morphological genetics of cal gene in chinese cabbage. | bcpcal, the homologous gene of cal, was isolated from chinese cabbage. unlike bobcal of cauliflower, bcpcal did not hold the terminating mutation in the fifth exon. after crosses of cauliflower with chinese cabbage, the resultant hybrids failed to form curd, which implicates the genetic complement of bcpcal to the mutated bobcal in the function of curd formation. one of cal gene isolated from the hybrid apparently comes from the female parent (chinese cabbage) even though there are a few of the ... | 2000 | 10765981 |
| zinc-finger proteins: the classical zinc finger emerges in contemporary plant science. | tfiiia-type zinc fingers have been found in a number of eucaryotic transcription factors as dna-binding motifs. in plants, as many as 30 proteins have been reported that have either one, two, three or four zinc fingers. plant zinc-finger proteins are characterized by long spacers of diverse lengths between adjacent fingers and a highly conserved sequence, qalggh, located within a putative dna-contacting surface of each finger. in vitro dna-binding experiments with two-fingered proteins of petuni ... | 1999 | 10380795 |
| high-pressure carbon dioxide effect on kimchi fermentation. | baechu (chinese cabbage) kimchi was treated with high-pressure carbon dioxide at 70 kg/cm(2) for 24 h. the effect of this treatment on kimchi fermentation during storage at 10°c was investigated in terms of ph value, titratable acidity, lactic acid bacterial count, and sensory properties. kimchi samples treated with pressurized co2 had relatively a higher ph value, lower titratable acidity, and smaller lactic acid bacterial population than the untreated sample. a sensory evaluation showed that t ... | 1999 | 27389338 |
| lead uptake and effects on seed germination and plant growth in a pb hyperaccumulator brassica pekinensis rupr. | | 1998 | 9470991 |
| from fresh vegetables to the harvest of wheat plants grown in the "svet" space greenhouse onboard the mir orbital station. | researchers report the results of experiments conducted onboard mir in 1990, 1995, and 1996 in raising edible crops. in the 1990 experiment, radishes and chinese cabbage were grown successfully, though the experimental plants were up to four times smaller than controls at harvest. the 1995 experiment in growing wheat through a complete life cycle was not completed. the 1996 experiment was successful in growing wheat through a complete life cycle to the seed stage. no seeds developed on any of th ... | 1997 | 11540703 |
| stable isotope dilution-mass spectrometry for determining total selenium levels in plants, soils and sewage sludges. | quantitation of selenium in plants, soils and sludges was achieved by isotope dilution-mass spectrometry using a benchtop instrument. samples for analysis were spiked with (76)se isotope solution. plant material was digested on a heating block at 150 degrees c using a mixture of nitric acid and hydrogen peroxide. selenium in soils and sludges was released by treatment with nitric acid followed by digestion with nitric and hydrofluoric acids. selenium in the digests was reduced to se(iv) with hyd ... | 1996 | 18966585 |
| synthesis and biological activities of substituted 4,4,4-trifluoro-3-(indoie-3-)butyric acids, novel fluorinated plant growth regulators. | substituted 4,4,4-trifluoro-3-(indole-3-)butyric acids (tfibas), novel fluorinated plant growth regulators, were easily synthesized from substituted 2,2,2-trifluoro-l-(indole-3-)ethanols. the synthetic substituted tfibas showed marked root growth-promoting activity toward chinese cabbage, lettuce, and rice plants. 5-meo-2-me-tfiba (2d) had especially strong promoting activity toward chinese cabbage, while 5-me- tfiba (2b) markedly promoted the root growth of all three plants. the promoting activ ... | 1996 | 27281137 |
| instrumentation for plant health and growth in space. | the present-day plant growth facilities ("greenhouses") for space should be equipped with monitors and controllers of ambient parameters within the chamber because spacecraft environmental variations can be unfavorable to plants. moreover, little is known about the effects of spaceflight on the greenhouse and rooting media. lack of information about spaceflight effects on plants necessitates supplying space greenhouses with automatic, non-invasive monitors of, e.g., gas exchange rate, water and ... | 1996 | 11538792 |
| nucleotide sequence of a cdna clone encoding the complete precursor for the "10-kilodalton" polypeptide of photosystem ii from chinese cabbage. | | 1995 | 7610192 |
| nucleotide sequence of cdna clone encoding a metallothionein-like protein from chinese cabbage. | | 1995 | 7610190 |
| transfer factors of some selected radionuclides (radioactive cs, sr, mn, co and zn) from soil to leaf vegetables. | transfer factors of radionuclides from soil to leaf vegetables (cabbage, chinese cabbage, komatsuna, spinach and lettuce) have been studied by radiotracer experiments using andosol as a representative of japanese soils. the transfer factors of radioactive cs, sr, mn, co and zn for edible parts of vegetables (average of five vegetables) were 0.11, 0.24, 0.61, 0.05 and 0.52, respectively. these values should be used in safety assessment for japanese agricultural environment. the transfer factors o ... | 1995 | 7473347 |
| pcr-rflp of s locus for identification of breeding lines in cruciferous vegetables. | a simple method of detecting polymorphism of s locus glycoprotein gene, slg, in chinese cabbage and cabbage was developed, and used for identification of breeding lines. dna was amplified by the polymerase chain reaction (pcr) with a pair of primers having s 6 slg sequences from inbred lines, and digested with restriction endonucleases which recognize tetranucleotide sequences. the cleaved dna fragments were size-fractionated by polyacrylamide gel electrophoresis and detected by silver staining. ... | 1994 | 24196218 |
| determination of biogenic amines in leafy vegetables by amino acid analyser. | an automated ion-exchange chromatographic method is described for determination of biogenic amines in leafy vegetables using a cation-exchange resin column in potassium form and a three-buffer system. the following amines were separated and quantified for chinese cabbage, endive, iceberg lettuce and radiocchio: putrescine, histamine, cadaverine, spermidine, agmatine, spermine, tyramine. amines from vegetable samples were extracted with 10% trichloroacetic acid. the total concentration of these a ... | 1994 | 8178576 |
| high performance liquid chromatographic determination of phenolic acids in fruits and vegetables. | a simple isocratic hplc technique has been developed for the quantitative analysis of phenolic acids (pas) in fruits and vegetables. nine benzoic and cinnamic acid derivatives were separated in less than 30 min, and the resolution was all more than 1.23. the ranges of linearity for pas standards were 0.2-100 ng, even up to 600 ng (r = 0.983-1.000) and the detection limits were 0.02-0.24 mg/kg. samples of fresh vegetables and fruits were extracted with 80% methanol and ethyl acetate, then purifie ... | 1993 | 8198755 |
| allelopathic dominance ofmiscanthus transmorrisonensis in an alpine grassland community in taiwan. | a study site located at 2600 m elevation in tartarchia anpu, nantou county, taiwan, exhibits a unique grassland community composed of two principal species,miscanthus transmorrisonensis andyushinia niitakayamensis, and 35 other species. the relative frequencies of the two species are 12% and 11%, while their relative coverages are 25% and 19.5%, respectively. the values for the remaining 35 species are lower than4% each, while species diversity of the community is -3.04839, indicating great dive ... | 1991 | 24258605 |
| a linkage map ofbrassica rapa (syn.campestris) based on restriction fragment length polymorphism loci. | a detailed linkage map ofb. rapa (syn.campestris) was constructed based on segregation of 280 restriction fragment length polymorphism loci, detected by using 188 genomic dna clones as probes on dnas from a f2 population of chinese cabbage 'michihilf'×'spring broccoli.' these genetic markers covered 1,850 centimorgans (cm) and defined ten linkage groups, which equals the haploid chromosome number of this species. extensive sequence duplication was evident by the detection of two or more segregat ... | 1991 | 24213173 |
| [multiple stepwise regression analysis of etiological factors of esophageal cancer in cixian county]. | cixian county, one of the high-risk counties of esophageal cancer in the world, has a standardized mortality of 142.19/10(5) population, 1969-1971. the incidence of esophageal cancer had dropped year by year from 1974 to 1982. the significance of the incidence tendency was studied. the results are highly significant (p less than 0.001). the causative factors of esophageal cancer including five independent variables: x1 (number of people taking sanitized water), x2 (number of people on pickled ch ... | 1989 | 2789130 |
| [preliminary observation on feeding preference of oncomelania for sedum sarmentosum]. | as a result of screening, we discovered that sedum sarmentosum bunge was most preferred among 317 kinds of snail food. both adult and young snails readily eat s. sarmentosum as evidenced by laboratory observation and dissection of the snails. in aquarium, more snails were attracted by s. sarmentosum than by chinese cabbage and chlorella suspension. on water surface, s. sarmentosum curtains attracted adult snails 2.1-3.7 times and immature snails 2.3-4.1 times more than rice straw curtains. | 1989 | 2591039 |
| residues of dacthal and metabolites in field-treated chinese cabbage. | | 1988 | 3233362 |
| diet and cancer of the stomach: a case-control study in china. | a case-control study focusing on the role of single food items was undertaken in the heilongjiang area, 241 patients with histologically verified stomach cancer and an equal number of controls (with non-neoplastic diseases) matched by age, sex and area of residence being interviewed during a 2-year period. questions asked covered economic status, occupation, histories of smoking and drinking, diet and dietary habits and disease history. data concerning the average frequency and quantity of consu ... | 1988 | 3346096 |