| responses of yearling steers to different stocking rates on a subtropical grass-legume pasture. | despite potential benefits, limitations of individual tropical legumes have restricted development of sustainable grass-legume pastures in tropical and subtropical regions. sowing mixtures of complementary legumes may overcome limitations of individual species. responses of yearling steers grazing a mixture of three tropical legumes with bahiagrass (paspalum notatum flugge) were evaluated at three stocking rates under continuous grazing. carpon desmodium (desmodium heterocarpon [l.] dc.), which ... | 1991 | 1894572 |
| ruminal release of minerals from six forage species. | an in vitro technique and an in situ technique were used to measure release of ca, mg, p and zn over time from hand-clipped alfalfa (medicago sativa l.). maximal release of p and zn was greater using the in situ technique. 'florida 77' alfalfa (medicago sativa l.), 'florigraze' rhizoma peanut (arachis glabrata benth.), 'mott' dwarf elephantgrass (pennisetum purpureum schum.), 'tifton 78' bermudagrass (cynodon dactylon (l) pers.), 'pensacola' bahiagrass (paspalum notatum flugge) and 'floralta' li ... | 1990 | 2384396 |
| further research on azotobacter paspali and its variety specific occurrence in the rhizosphere of paspalum notatum flugge. | | 1970 | 4319201 |
| immunodetection and comparison of melaleuca, bottlebrush, and bahia pollens. | pollen extracts of two trees, callistemon citrinis (bottlebrush) and melaleuca leucadendron (melaleuca), as well as the grass paspalum notatum (bahia) were analyzed for antigenic and allergenic cross-reactivity using sds-page and western blotting. sds-page analysis of all three pollen extracts revealed multiple antigenic components which were reactive with rabbit antisera made to each pollen extract. comparison of reduced and nonreduced mobility patterns suggested the possible presence of multic ... | 1994 | 7920031 |
| determinants of forage quality in pensacola bahiagrass and mott elephantgrass. | our objective was to determine animal responses and forage characteristics that could explain the greater forage quality of 'mott' dwarf elephantgrass (pennisetum purpureum schum.) than that of 'pensacola' bahiagrass (paspalum notatum flugge). both grasses were harvested after 5 wk of regrowth in june and september. sheep fed mott hays had greater (p = .001) voluntary intake of digestible om (dom) than did those fed pensacola, but voluntary intake of ash-free ndf (ndfa) did not differ (p = .21) ... | 1993 | 8392049 |
| effect of rotational vs continuous intensive stocking of bahiagrass on performance of angus cows and calves and interaction with sire type on gastrointestinal nematode burden. | performance of angus cows and calves was compared between two methods of bahiagrass (paspalum notatum flügge) grazing management, rotational stocking (rot) and continuous intensive stocking (cis), where stocking rate was varied by adjusting available pasture area as forage growth rate changed during the growing season. effects of sire type (low [lo] vs high [hi] epd for nematode egg shedding rate [epg]) also were studied. data were analyzed for two complete cycles of calf production from breedin ... | 1997 | 9303444 |
| average daily gain, blood metabolites, and body composition at first conception in hereford, senepol, and reciprocal crossbred heifers on two levels of winter nutrition and two summer grazing treatments. | hereford (n = 48), senepol (n = 42), and reciprocal crossbred (n = 34) heifers from two consecutive calf crops were stratified by breed, age, and bw to receive bahiagrass (paspalum notatum) hay offered free choice and 150 mg monensin x heifer(-1) x d(-1) in addition to either 2.27 kg x heifer(-1) x d(-1) of a 75% cracked corn and 25% soybean meal mixture (cs) or .91 kg x heifer(-1) x d(-1) of soybean meal (sbm). heifers in each treatment were divided into two winter pasture replicates and expose ... | 1998 | 9498344 |
| sensitization to mite allergens and acute asthma in a tropical environment. | the objective of this study was to determine whether sensitization to certain aeroallergens is associated with acute asthma in cartagena, colombia. ninety-nine subjects with acute asthma and 100 controls evaluated for other reasons were studied at a local emergency room. sensitization was established by specific ige determinations. statistically significant differences between asthmatic subjects and controls were found in the prevalence of specific ige to dermatophagoides pteronyssinus, 64.6% vs ... | 1998 | 9827423 |
| diet selection by steers using microhistological and stable carbon isotope ratio analyses. | two methods of determining diet botanical composition, microhistological (mh), and stable carbon isotope ratio (cr) analyses were used to determine botanical composition of ingesta and fecal grab samples in steers grazing rhizoma peanut-mixed tropical grass pastures. three pastures were used over two grazing seasons, 1992 and 1993, in brooksville, fl. a weighted-disc double-sampling technique was used to determine forage mass and botanical composition, percentage of rhizoma peanut (arachis glabr ... | 1999 | 10462006 |
| source and level of energy supplementation for yearling cattle fed ammoniated hay. | brahman x british crossbred steers were used in growth and digestion trials to evaluate the response of source (corn, sugar cane molasses, or soybean hulls) and feeding rate (0, 1.4, or 2.8 kg dm per steer daily in the growth trials; 0, 15, or 30% of the ration dm in the digestion trial) of energy supplementation in cattle fed ammoniated (4% of forage dm) stargrass (cynodon nlemfuensis vanderyst var. nlemfuensis) hay. cattle on all treatments were fed 0.5 kg cottonseed meal daily. in the growth ... | 2001 | 11374553 |
| phosphorus leaching from biosolids-amended sandy soils. | increasing emphasis on phosphorus (p)-based nutrient management underscores the need to understand p behavior in soils amended with biosolids and manures. laboratory and greenhouse column studies characterized p forms and leachability of eight biosolids products, chicken manure (cm), and commercial fertilizer (triple superphosphate, tsp). bahiagrass (paspalum notatum flugge) was grown for 4 mo on two acid, p-deficient florida sands, representing both moderate (candler series: hyperthermic, uncoa ... | 2002 | 11931462 |
| influence of water treatment residuals on phosphorus solubility and leaching. | laboratory and greenhouse studies compared the ability of water treatment residuals (wtrs) to alter p solubility and leaching in immokalee sandy soil (sandy, siliceous, hyperthermic arenic alaquod) amended with biosolids and triple superphosphate (tsp). aluminum sulfate (al-wtr) and ferric sulfate (fe-wtr) coagulation residuals, a lime softening residual (ca-wtr) produced during hardness removal, and pure hematite were examined. in equilibration studies, the ability to reduce soluble p followed ... | 2002 | 12175057 |
| identification and characterization of the allergenic proteins of bahia grass (paspalum notatum) pollen. | pollen of bahia grass (paspalum notatum) represents a major cause of type i allergy in diverse geographical areas, particularly in the southeastern coastal plain area of the united states. the aqueous protein extract of bahia grass pollen contains the allergenically active components that produce skin-test-positive reactions in sensitive patients. | 2002 | 12218368 |
| effect of ammonium sulfate fertilization on bahiagrass quality and copper metabolism in grazing beef cattle. | to assess the impact of s fertilization on bahiagrass (paspalum notatum) quality and cu metabolism in cattle, two studies were conducted during the summer grazing season (1999 and 2000). pasture replicates (16.2 ha; n = 2/treatment) received the same fertilizer treatment in each growing season, consisting of 1) 67 kg n/ha from ammonium sulfate (as), 2) 67 kg n/ha from ammonium nitrate (an), and 3) control (no fertilizer; c). forage sampling was conducted at 28-d intervals following fertilization ... | 2002 | 12413071 |
| methane emissions of beef cattle on forages: efficiency of grazing management systems. | fermentation in the rumen of cattle produces methane (ch4). methane may play a role in global warming scenarios. the linking of grazing management strategies to more efficient beef production while reducing the ch4 emitted by beef cattle is important. the sulfur hexafluoride (sf6) tracer technique was used to determine the effects of best management practices (bmp) grazing compared with continuous grazing on ch4 production in several louisiana forages during 1996-1998. cows and heifers (bos taur ... | 2003 | 12549566 |
| effect of early weaning on the performance of three-year-old, first-calf beef heifers and calves reared in the subtropics. | the objective of this study was to investigate the effectiveness of early weaning fall-born calves on heifer and calf performance in florida. over two consecutive years, 3-yr-old braford and brahman x angus first-calf heifers were assigned randomly to one of two treatments; early-weaned (ew, n = 20 and 30 for yr 1 and 2, respectively) and normal-weaned (nw, n = 20 and 38 for yr 1 and 2, respectively). calves were ew on january 23 and 3 for yr 1 and 2, respectively. following ew, all first-calf h ... | 2003 | 12772839 |
| effect of copper source and level on performance and copper status of cattle consuming molasses-based supplements. | two studies were conducted to evaluate the availability of dietary cu offered to growing beef cattle consuming molasses-based supplements. in exp. 1, 24 braford heifers were assigned randomly to bahiagrass (paspalum notatum) pastures (two heifers/pasture). heifers were provided 1.5 kg of tdn and 0.3 kg of supplemental cp/heifer daily using a molasses-cottonseed meal slurry. three treatments were randomly assigned to pastures (four pastures/treatment), providing 100 mg of supplemental cu daily in ... | 2003 | 12817481 |
| accumulation of heavy metals in four grasses grown on lead and zinc mine tailings. | a field experiment was conducted to compare the growth and metal accumulation of vetiveria zizanioides, paspalum notatum, cynodon dactylon and imperata cylindraca var. major on the tailings, amended with 10 cm domestic refuse + complex npk fertilizer(treatment a), 10 cm domestic refuse(treatment b) and complex npk fertilizer (treatment c) respectively, and without any amendment used as control (treatment d). the results indicated that v. zizanioides was a typical heavy metal excluder, because th ... | 2004 | 15559800 |
| bahia grass pollen specific ige is common in seasonal rhinitis patients but has limited cross-reactivity with ryegrass. | perennial ryegrass is a major cause of rhinitis in spring and early summer. bahia grass, paspalum notatum, flowers late into summer and could account for allergic rhinitis at this time. we determined the frequency of serum immunoglobulin (ig)e reactivity with bahia grass in ryegrass pollen allergic patients and investigated ige cross-reactivity between bahia and ryegrass. | 2005 | 15647049 |
| estimation of feeding value of four tropical forage species at two stages of maturity. | the feeding value of four tropical grasses was assessed through voluntary intake and digestibility studies using yearling brahman x british steers (average bw = 256 +/- 34 kg). the digestibility of om was estimated using total fecal collection (tfc), in vitro om digestibility (ivomd), and by estimating fecal production using insoluble acid detergent fiber (iadf) as an indigestible marker. the four grasses consisted of bahiagrass (paspalum notatum), limpograss (hemarthria altissima), bermudagrass ... | 2005 | 15956482 |
| developmental expression of asg- 1 during gametogenesis in apomictic guinea grass (panicum maximum). | we have used western blue-visualized in situ-hybridization (ish) to monitor the expression of apomixis-specific gene-1 (asg-1, genbank accession number ab000809) during gametogenesis in obligate-sexual and facultative-apomictic (aposporic) genotypes of guinea grass (panicum maximum). the in situ-analysis revealed that asg-1 is not expressed in the ovule during early floral development in both, the facultative apomicts (a1 stage) and the obligate sexuals (s1 stage). with the appearance of the apo ... | 2005 | 16255172 |
| increased sporulation of vesicular-arbuscular mycorrhizal fungi by manipulation of nutrient regimens. | adjustment of pot culture nutrient solutions increased root colonization and sporulation of vesicular-arbuscular mycorrhizal (vam) fungi. paspalum notatum flugge and vam fungi were grown in a sandy soil low in n and available p. hoagland nutrient solution without p enhanced sporulation in soil and root colonization of acaulospora longula, scutellospora heterogama, gigaspora margarita, and a wide range of other vam fungi over levels produced by a tap water control or nutrient solutions containing ... | 1990 | 16348115 |
| presence of a vanadium nitrogenase in azotobacter paspali. | there have been no previous studies on the genetics of azotobacter paspali, an aerobic bacterium which forms a highly specific diazotrophic association with bahia grass (paspalum notatum). we constructed a. paspali strains defective in the molybdenum nitrogenase so that alternative n(2)ases could be studied. the cosmid vector ptbe and genomic dna fragments ( approximately 50 kb) of a. paspali atcc 23367 were used to construct a gene library in escherichia coli. recombinant cosmids containing seq ... | 1993 | 16348965 |
| land application of carbonatic lake-dredged materials: effects on soil quality and forage productivity. | the ability to reuse carbonatic lake-dredged materials (cldm) for agricultural purposes is important because it reduces offshore disposal and provides an alternative to disposal of the materials in landfills that are already overtaxed. a four-year (2001 to 2005) study on land application of cldm as an option for disposal was conducted on a beef cattle pasture in south central florida. the objectives of this study were (i) to assess cldm as a soil amendment to improve quality of sandy soils in mo ... | 2006 | 16899749 |
| optimizing nitrogen utilization in growing steers fed forage diets supplemented with dried citrus pulp. | our objectives were to compare the effects of sources of supplemental n on ruminal fermentation of dried citrus pulp (dcp) and performance of growing steers fed dcp and bahiagrass (paspalum notatum) hay. in exp. 1, fermentation of dcp alone was compared with that of isonitrogenous mixtures of dcp and solvent soybean meal (sbm), expeller soybean meal (soyplus; sp), or urea (ur). ground (1 mm) substrates were incubated in buffered rumen fluid for 24 h, and ivdmd and fermentation gas production kin ... | 2007 | 17526670 |
| stable expression of atga2ox1 in a low-input turfgrass (paspalum notatum flugge) reduces bioactive gibberellin levels and improves turf quality under field conditions. | bahiagrass (paspalum notatum flugge) is a prime candidate for molecular improvement of turf quality. its persistence and low input characteristics made it the dominant utility turfgrass along highways in the south-eastern usa. however, the comparatively poor turf quality due to reduced turf density and prolific production of unsightly inflorescences currently limits the widespread use of bahiagrass as residential turf. alteration of endogenous gibberellin (ga) levels by application of growth reg ... | 2007 | 17764521 |
| [seasonal variation of light fraction organic matter in degraded red soil after vegetation restoration]. | this paper studied the seasonal variation of light fraction organic matter (lfom) in the red soils of severely eroded bare land, and of the bare lands restored to pinus massoniana forest land, castanea mollissima plantation, and paspalum notatum grassland in the hetian town of changting county, fujian province, with secondary forest soil as the control. the results showed that in the surface soil of the bare land, lfom content was between 0.05-0.14 g x kg(-1) and with no significant seasonal var ... | 2008 | 18533525 |
| nutrient dynamics and tree growth of silvopastoral systems: impact of poultry litter. | fertilizing pastures with poultry litter has led to an increased incidence of nutrient-saturated soils, particularly on highly fertilized, well drained soils. applying litter to silvopastures, in which loblolly pine (pinus taeda l.) and bahiagrass (paspalum notatum) production are integrated, may be an ecologically desirable alternative for upland soils of the southeastern usa. integrating subterranean clover (trifolium subterraneum) into silvopastures may enhance nutrient retention potential. t ... | 2008 | 18574187 |
| carbon storage of different soil-size fractions in florida silvopastoral systems. | compared with open (treeless) pasture systems, silvopastoral agroforestry systems that integrate trees into pasture production systems are likely to enhance soil carbon (c) sequestration in deeper soil layers. to test this hypothesis, total soil c contents at six soil depths (0-5, 5-15, 15-30, 30-50, 50-75, and 75-125 cm) were determined in silvopastoral systems with slash pine (pinus elliottii) + bahiagrass (paspalum notatum) and an adjacent open pasture (op) with bahiagrass at four sites, repr ... | 2008 | 18689740 |
| sheep performance under intensive continuous grazing of native grasslands of paspalum notatum and axonopus compressus in the subtropical region of the highlands of central mexico. | liveweight gain was evaluated in tropical dorper x pelibuey lambs under intensive continuous grazing of native grasslands dominated by paspalum notatum (pn) or axonopus compressus (ac) in the subtropics of central mexico. two trials were undertaken. trial 1 lasted 12 weeks with 10 lambs (initial weight 18 +/- 2.57 kg, 3 months old) per treatment in 2002, and trial 2 for 13 weeks with 8 lambs (initial weight 24.0 +/- 2.0 kg, 4 months old) per treatment. lambs were weighed once per week, and livew ... | 2008 | 18716907 |
| molecular cloning, expression and immunological characterisation of pas n 1, the major allergen of bahia grass paspalum notatum pollen. | bahia grass, paspalum notatum, is a clinically important subtropical grass with a prolonged pollination season from spring to autumn. we aimed to clone and characterise the major bahia grass pollen allergen, pas n 1. grass pollen-allergic patients presenting to a tertiary hospital allergy clinic were tested for ige reactivity with bahia grass pollen extract by skin prick testing, immunocap, elisa and immunoblotting. using primers deduced from the n-terminal peptide sequence of a group 1 allergen ... | 2008 | 18817975 |
| persistence and suppressiveness of pasteuria penetrans to meloidogyne arenaria race. | the long-term persistence and suppressiveness of pasteuria penetrans against meloidogyne arenaria race 1 were investigated in a formerly root-knot nematode suppressive site following 9 years of continuous cultivation of three treatments and 4 years of continuous peanut. the three treatments were two m. arenaria race 1 nonhost crops, bahiagrass (paspalum notatum cv. pensacola var. tifton 9), rhizomal peanut (arachis glabrata cv. florigraze), and weed fallow. two root-knot nematode susceptible wee ... | 2004 | 19262836 |
| effect of soils from six management systems on root-knot nematodes and plant growth in greenhouse assays. | the effects of soil management systems on root-knot nematode (meloidogyne incognita) eggs and gall incidence on tomato (lycopersicon esculentum) and cucumber (cucumis sativus) following tomato were evaluated. soil was collected from a replicated field experiment in which six management systems were being assessed for vegetable production. soil management systems were conventional production, organic production, bahiagrass (paspalum notatum) pasture, bahiagrass: stylosanthes (stylosanthes guianen ... | 2005 | 19262892 |
| velvetbean and bahiagrass as rotation crops for management of meloidogyne spp. and heterodera glycines in soybean. | soybean (glycine max) yield often is limited by the phytoparasitic nematodes meloidogyne spp. and heterodera glycines in the southeastern united states. we studied the effects of rotation with bahiagrass (paspalum notatum), velvetbean (mucuna pruiens), or continuous soybean, aldicarb, and soybean cultivar on yield and population densities in two fields infested with a mixture of meloidogyne spp. and h. glycines. velvetbean and bahiagrass reduced population levels of both nematode species to near ... | 1998 | 19274247 |
| rotations with coastal bermudagrass, cotton, and bahiagrass for management of meloidogyne arenaria and southern blight in peanut. | the efficacy of coastal bermudagrass (cynodon dactylon) as a rotation crop for controt of root-knot nematode (meloidogyne arenaria) in 'florunner' peanut (arachis hypogoea) was evaluated in a 3-year field trial. coastal bermudagrass-peanut rotation (cbp) was compared with peanut monoculture without nematicide (p - ) and peanut monoculture with aldicarb (p + ). the performance of cbp was also compared with 'pensacola' bahiagrass (paspalum notatum)-peanut (bp), and 'deltapine 90' cotton (gossypium ... | 1994 | 19279945 |
| rotations of bahiagrass and castorbean with peanut for the management of meloidogyne arenaria. | the relative value of 'hale' castorbean (ricinus communis) and 'pensacola' bahiagrass (paspalum notatum) as rotational crops for the management of meloidogyne arenaria and southern blight (sclerotium rolfsii) in 'florunner' peanut (arachis hypogaea) production was studied for 3 years in a field experiment in southeast alabama. peanut following 2 years of castorbean (c-c-p) yielded 43% higher than monocultured peanut without nematicide. at-plant application of aldicarb (30.5 g a.i./100 m row in a ... | 1991 | 19283180 |
| weed hosts of meloidogyne arenaria and m. incognita common in tobacco fields in south carolina. | thirty-two weed species common in south carolina and one cultivar of tobacco were evaluated as hosts of meloidogyne arenaria race 2 and m. incognita race 3 in the greenhouse. egg mass production and galling differed (p < 0.05) among weed species. chenopodium album, euphorbia maculata, and vicia villosa were good hosts of m. arenaria. amaranthus palmeri, rumex crispus, amaranthus hybridus, ambrosia artemisiifolia, lpomoea hederacea var. integriuscula, setaria lutescens, sida spinosa, portulaca ol ... | 1988 | 19290313 |
| bahiagrass for the management of meloidogyne arenaria in peanut. | bahiagrass (paspalum notatum) cultivars argentine, pensacola, and tifton-9 were non-hosts for meloidogyne arenaria, m. incognita, and heterodera glycines in a greenhouse experiment using field soil infested with these nematodes. the effect of pensacola bahiagrass in rotation with peanut (arachis hypogaea) on m. arenaria was studied in 1986 and 1987 in a field at the wiregrass substation near headland, alabama. each year soil densities of second-stage juveniles of m. arenaria, determined near pea ... | 1988 | 19290315 |
| applicability of leachates originating from solid-waste landfills for irrigation in landfill restoration projects. | since, landfill areas are still the most widely used solid waste disposal method across the world, leachate generated from landfills should be given importance. leachate of landfills exerts environmental risks mostly on surface and groundwater with its high pollutant content, which may cause unbearable water quality. this leads to the obligation for decontamination and remediation program to be taken into progress for the landfill area. among a number of alternatives to cope with leachate, one i ... | 2008 | 19295082 |
| intake, digestibility, and nitrogen retention by sheep supplemented with warm-season legume haylages or soybean meal. | the high cost of commercial supplements necessitates evaluation of alternatives for ruminant livestock fed poor quality warm-season grasses. this study determined how supplementing bahiagrass haylage (paspalum notatum flügge cv. tifton 9) with soybean [glycine max (l.) merr.] meal or warm-season legume haylages affected the performance of lambs. forty-two dorper x katadhin lambs (27.5 +/- 5 kg) were fed for ad libitum intake of bahiagrass haylage (67.8% ndf, 9.6% cp) alone (control) or supplemen ... | 2009 | 19502512 |
| intake, digestibility, and nitrogen retention by sheep supplemented with warm-season legume hays or soybean meal. | the increasing cost of feed supplements necessitates evaluation of alternatives for ruminant livestock grazing poor quality warm-season grasses. this study determined how supplementing bahiagrass hay (paspalum notatum flügge cv. pensacola) with soybean [glycine max (l.) merr.] meal or warm-season legume hays affected intake, digestibility, and n utilization by lambs. dorper x katadhin crossbred lambs (30.6 +/- 5.5 kg; n = 42) were fed bahiagrass hay (73.8% ndf, 8.1% cp) for ad libitum intake and ... | 2009 | 19502513 |
| soil nitrate leaching in silvopastures compared with open pasture and pine plantation. | wide acceptance of silvopasture as an alternative sustainable agricultural system in the southeastern united states will depend on an improved understanding of the tree-forage interactions and recognition of its environmental benefits. the objective of this study was to evaluate differences in soil nitrate leaching in different land-use systems, in north florida. an 18-yr-old loblolly pine (pinus taeda l.) plantation was thinned in the summer of 2002 to create a fifth-row thinned, nontraditional ... | 2009 | 19643752 |
| evaluation of molecular basis of cross reactivity between rye and bermuda grass pollen allergens. | allergenic cross reactivity between the members of the pooids (lolium perenne, phleum pratense, and poa pratensis) and chloridoids (cynodon dactylon and paspalum notatum) is well established. studies using crude extracts in the past have demonstrated limited cross reactivity between the pooids and the chloridoids suggesting separate diagnosis and therapy. however, little is known regarding the molecular basis for the limited cross reactivity observed between the 2 groups of grasses. the present ... | 2009 | 19776679 |
| vertical migration of haemonchus contortus infective larvae on cynodon dactylon and paspalum notatum pastures in response to climatic conditions. | observations were made on vertical migration patterns of haemonchus contortus infective larvae on cynodon dactylon (bermudagrass) and paspalum notatum (bahiagrass) pastures under summer climatic conditions typical of east texas. ten thousand h. contortus infective larvae (l3) were introduced to 100 cm(2) subplots of each pasture species within a plot area of 1m(2). subplots were inoculated with larvae by applying them in an aqueous medium to the soil or mat beneath the vegetation. herbage from t ... | 2010 | 20149541 |
| nutritive value, fermentation characteristics, and in situ disappearance kinetics of ensiled warm-season legumes and bahiagrass. | this study determined the nutritive value, ensiling characteristics, and in situ disappearance kinetics of bahiagrass (paspalum notatum flügge 'tifton 9'), perennial peanut (arachis glabrata benth. 'florigraze'), annual peanut [arachis hypogaea (l.) 'fl mdr 98'], cowpea [vigna unguiculata (l.) walp. 'iron clay'], and pigeonpea [cajanus cajan (l.) millsp. 'ga-2']. all forages were harvested at maturity stages that optimized dry matter (dm) yield and nutritive value. after harvest, forages were wi ... | 2011 | 21426995 |
| relative salinity tolerance of warm season turfgrass species. | fresh water, coupled with soil salinization in many areas has resulted in an increased need forscreening of salt tolerant turf grasses. relative salinity tolerance of eightwarm season turfgrass species were examined in this study in sand culture. grasses were grown in a glasshouse, irrigated with either distilled water or saline sea water adjusted to 24, 48 or 72 dsm-1. salt tolerances of the grasses were assessed on the basis of their shoot and root growth, leaf firing and turf quality. regress ... | 2011 | 22167942 |
| exserohilum rostratum: characterization of a cross-kingdom pathogen of plants and humans. | pathogen host shifts represent a major source of new infectious diseases. there are several examples of cross-genus host jumps that have caused catastrophic epidemics in animal and plant species worldwide. cross-kingdom jumps are rare, and are often associated with nosocomial infections. here we provide an example of human-mediated cross-kingdom jumping of exserohilum rostratum isolated from a patient who had received a corticosteroid injection and died of fungal meningitis in a florida hospital ... | 2014 | 25285444 |
| cool-season annual pastures with clovers to supplement wintering beef cows nursing calves. | in december of 3 years, 87 beef cows with nursing calves (594 ± 9.8 kg; calving season, september to november) at side were stratified by body condition score, body weight, cow age, and calf gender and divided randomly into 6 groups assigned to 1 of 6 cool-season annual pastures (0.45 ha/cow) that had been interseeded into a dormant common bermudagrass (cynodon dactylon [l.] pers.)/bahiagrass (paspalum notatum flugge) sod. pastures contained 1 of the following 3 seeding mixtures (2 pastures/mixt ... | 2012 | 22958279 |
| biological impact of divergent land management practices on tomato crop health. | development of sustainable food systems is contingent upon the adoption of land management practices that can mitigate damage from soilborne pests. five diverse land management practices were studied for their impacts on fusarium wilt (fusarium oxysporum f. sp. lycopersici), galling of roots by meloidogyne spp. and marketable yield of tomato (solanum lycopersicum) and to identify associations between the severity of pest damage and the corresponding soil microbial community structure. the incide ... | 2012 | 22352308 |
| bahiagrass, corn, cotton rotations, and pesticides for managing nematodes, diseases, and insects on peanut. | florunner peanut was grown after 1 and 2 years of tifton 9 bahiagrass, corn, cotton, and continuous peanut as whole-plots. pesticide treatments aldicarb (3.4 kg a.i./ha), flutolanil (1.7 kg a.i./ha), aldicarb + flutolanil, and untreated (control) were sub-plots. numbers of meloidogyne arenaria second-stage juveniles in the soil and root-gall indices of peanut at harvest were consistently lower in plots treated with aldicarb and aldicarb + flutolanil than in flutolanil-treated and untreated plots ... | 1999 | 19270889 |
| effects of bahiagrass and nematicides on meloidogyne arenaria on peanut. | a field infested with meloidogyne arenaria and with a history of peanut yield losses was divided into two equal parts. one-half of the field (bahia site) was planted to bahiagrass in 1986 and maintained through 1987. the other half (peanut site) was planted to soybean in 1986 and peanut in 1987 with hairy vetch planted each fall as a cover crop. in 1988 identical nematicide treatments including 1,3-dichloropropene (1,3-d), aldicarb, and ethoprop were applied to the two sites, and the sites were ... | 1989 | 19287670 |
| pntgs1-like expression during reproductive development supports a role for rna methyltransferases in the aposporous pathway. | in flowering plants, apomixis (asexual reproduction via seeds) is widely believed to result from failure of key regulators of the sexual female reproductive pathway. in the past few years, both differential display and rna-seq comparative approaches involving reproductive organs of sexual plants and their apomictic counterparts have yielded extensive lists of candidate genes. nevertheless, only a limited number of these genes have been functionally characterized, with few clues consequently avai ... | 2014 | 25404464 |
| short communication an efficient method for simultaneous extraction of high-quality rna and dna from various plant tissues. | determination of gene expression is an important tool to study biological processes and relies on the quality of the extracted rna. changes in gene expression profiles may be directly related to mutations in regulatory dna sequences or alterations in dna cytosine methylation, which is an epigenetic mark. correlation of gene expression with dna sequence or epigenetic mark polymorphism is often desirable; for this, a robust protocol to isolate high-quality rna and dna simultaneously from the same ... | 2015 | 26782533 |
| expression of lorelei-like genes in aposporous and sexual paspalum notatum plants. | gametophytic apomictic plants form non-reduced embryo sacs that generate clonal embryos by parthenogenesis, in the absence of both meiosis and egg-cell fertilization. here we report the sequence and expression analysis of a lorelei-like paspalum notatum gene, n20gap-1, which encodes a gpi-anchored protein previously associated with apomixis in this species. phylogeny trees showed that n20gap-1 was evolutionary related to the arabidopsis thaliana lorelei genes at4g26466 and at5g56170. the lorelei ... | 2011 | 21826430 |
| influence of cow breed type, age and previous lactation status on cow height, calf growth, and patterns of body weight, condition, and blood metabolites for cows grazing bahiagrass pastures. | this study was initiated to evaluate performance and patterns of cow traits and blood metabolites of 3 breeds of cows grazing bahiagrass (paspalum notatum flügge) pastures in central florida. purebred cows (n = 411) of either angus (bos taurus), brahman (bos indicus), or romosinuano (bos taurus) breeding, rotationally grazed (moved twice weekly) bahiagrass pastures year-round, and received bahiagrass hay supplemented with molasses and soyhulls or legume hay supplemented with unfortified molasses ... | 2017 | 28177395 |
| stocking rate and monensin supplemental level effects on growth performance of beef cattle consuming warm-season grasses. | the objective of this study was to evaluate the effects of monensin supplementation on animals receiving warm-season grass with limited supplementation. in exp. 1, treatments were a factorial combination of 2 stocking rates (1.2 and 1.7 animal unit [au] [500 kg bw]/ha) and supplementation with monensin (200 mg/d) or control (no monensin) distributed in a complete randomized design with 3 replicates. thirty angus × brahman crossbred heifers (bos taurus × bos indicus) with initial bw of 343 ± 8 kg ... | 2015 | 26440034 |
| preference of cattle grazing conterminous monocultures of centipedegrass (eremochloa ophiuroides) and bahiagrass (paspalum notatum) with contrasting regrowth durations. | this study conducted four experiments to assess preference of cattle between centipedegrass (eremochloa ophiuroides; cg) and bahiagrass (paspalum notatum; bg) under manipulated vegetation conditions. in each experiment, three japanese black cows (bos taurus) were individually allowed to graze four plots of conterminous monocultures of cg and bg (30 min for each 10 × 10 m plot). vegetation of the plots was the combinations of two patch sizes (coarse and fine; 5 × 10 m and 5 × 5 m, respectively) × ... | 2016 | 27723180 |
| floristic and structural patterns in south brazilian coastal grasslands. | the natural vegetation of southern brazil's coastal region includes grasslands formations that are poorly considered in conservation policy, due to the lack of knowledge about these systems. this study reports results from a regional-scale survey of coastal grasslands vegetation along a 536 km gradient on southern brazil. we sampled 16 sites along the coastal plain with 15 plots (1 m²) per site. all sites were grazed by cattle. we estimated plant species cover, vegetation height, percentage of b ... | 2015 | 26628017 |
| sward characteristics, nutritive value and choice by cattle of conterminous monocultures of centipedegrass (eremochloa ophiuroides) and bahiagrass (paspalum notatum). | in south-western japan, centipedegrass (eremochloa ophiuroides; cg) offers a novel option for a warm-season perennial for grazing use in areas where bahiagrass (paspalum notatum; bg) can be grown. however, the potential of cg as a forage has not been fully explored because of the short history as a forage crop. we conducted four experiments to evaluate cg (cv. tifblair) in comparison with bg (cv. pensacola) in terms of sward characteristics, nutritive value and choice by animals. in each experim ... | 2016 | 26355386 |
| soil-extractable phosphorus and phosphorus saturation threshold in beef cattle pastures as affected by grazing management and forage type. | grazing can accelerate and alter the timing of nutrient transfer, and could increase the amount of extractable phosphorus (p) cycle from soils to plants. the effects of grazing management and/or forage type that control p cycling and distribution in pasture's resources have not been sufficiently evaluated. our ability to estimate the levels and changes of soil-extractable p and other crop nutrients in subtropical beef cattle pastures has the potential to improve our understanding of p dynamics a ... | 2014 | 23955167 |
| specific ige recognition of pollen allergens from subtropic grasses in patients from the subtropics. | pollens of subtropical grasses, bahia (paspalum notatum), johnson (sorghum halepense), and bermuda (cynodon dactylon), are common causes of respiratory allergies in subtropical regions worldwide. | 2015 | 25744907 |
| grass pollen allergens globally: the contribution of subtropical grasses to burden of allergic respiratory diseases. | grass pollens of the temperate (pooideae) subfamily and subtropical subfamilies of grasses are major aeroallergen sources worldwide. the subtropical chloridoideae (e.g. cynodon dactylon; bermuda grass) and panicoideae (e.g. paspalum notatum; bahia grass) species are abundant in parts of africa, india, asia, australia and the americas, where a large and increasing proportion of the world's population abide. these grasses are phylogenetically and ecologically distinct from temperate grasses. with ... | 2014 | 24684550 |
| subtropical grass pollen allergens are important for allergic respiratory diseases in subtropical regions. | grass pollen allergens are a major cause of allergic respiratory disease but traditionally prescribing practice for grass pollen allergen-specific immunotherapy has favoured pollen extracts of temperate grasses. here we aim to compare allergy to subtropical and temperate grass pollens in patients with allergic rhinitis from a subtropical region of australia. | 2012 | 22409901 |
| functional immunoglobulin e cross-reactivity between pas n 1 of bahia grass pollen and other group 1 grass pollen allergens. | grass pollens are major triggers of allergic rhinitis and asthma, but the immunological relationships between pollen allergens of the subtropical bahia grass, paspalum notatum, and temperate grasses are unresolved. | 2011 | 21231976 |
| effects of nitrogen fertilization and harvest date on yield, digestibility, fiber, and protein fractions of tropical grasses. | to evaluate the response of three tropical forage species to varying rates of nitrogen (n) fertilization [0, 39, 78, 118, 157 kg of n/(ha x cutting)] and five summer harvests, forage dm mass and nutritive value were evaluated in a randomized complete block design with a split-split plot arrangement of treatments. plots (n = 60) were established in 1996, and five harvests were conducted every 28 d from june through september in 1997 and 1998, with fertilizer applications occuring after each harve ... | 2001 | 11583432 |
| short photoperiod inhibits winter growth of subtropical grasses. | grass development is influenced by length of photoperiod, but no direct measurements under natural conditions exist on mass accumulation in response to photoperiod by subtropical grass species. grasslands of the subtropics are a major resource, but their growth is inhibited substantially during the short-photoperiod months. this research was designed to examine the consequences on grass production under field conditions when the limitation of short photoperiod is artificially removed. lights, wh ... | 2001 | 11506374 |
| water quality of runoff from revegetated mine spoil. | permanent vegetation plots were established on mixed overburden and topsoiled overburden on a lignite test pit in eastern texas in 1982. vegetative treatments included two grass-legume treatments [switchgrass (panicum virgattun) - sideoats grama (bouteloua curtipendula) - subterrancan elover (trifolitun subterranean) and litte bluestem (schizachyriun scoparium) - sideoats grama (bouteloua curtipendula) - illinois hundleflower (dessmanthus illinoiensis)] and three monocultures [coastal bermudagra ... | 1985 | 24221679 |
| production of native arbuscular mycorrhizal fungi inoculum under different environmental conditions. | in order to obtain an arbuscular mycorrhizal fungi (amf) native inoculum from sierra de moa and determine the most appropriate conditions for its big scale production, four light and temperature combinations were tested in three plant species (calophyllum antillanum, talipariti elatum and paspalum notatum). growth and development parameters, as well as the mycorrhizal functioning of the seedlings were evaluated. the natural light treatment under high temperatures (l-h) was the most suitable for ... | 2017 | 27889421 |
| warm-season (c4) turfgrass genotypes resistant to spittlebugs (hemiptera: cercopidae). | screening for resistance to insect pests is one of the early stages of grass breeding programs. pasture spittlebugs are sap-sucking insects that potentially cause severe damage to turfgrasses, including the loss of functional quality and perenniallity. the brazilian flora has a large number of grass species with wide morphological variability and adaptability to different soil and climate conditions that can potentially be used as lawns. however, no study has screened turfgrass genotypes for res ... | 2016 | 27329631 |
| genetic variation in polyploid forage grass: assessing the molecular genetic variability in the paspalum genus. | paspalum (poaceae) is an important genus of the tribe paniceae, which includes several species of economic importance for foraging, turf and ornamental purposes, and has a complex taxonomical classification. because of the widespread interest in several species of this genus, many accessions have been conserved in germplasm banks and distributed throughout various countries around the world, mainly for the purposes of cultivar development and cytogenetic studies. correct identification of germpl ... | 2013 | 23759066 |
| effect of pre-treatment and supporting media on ni(ii), cu(ii), al(iii) and fe(iii) sorption by plant root material. | in this work paspalum notatum root material was used to elucidate the influence of acid leaching pre-treatment and of sorption medium on metal adsorption. ground p. notatum root was leached with 0.14m hno(3). leached root material (lrm) and non-leached root material (nlrm) were employed to flow sorption of ni(ii), cu(ii), al(iii) and fe(iii) in 0.5m ch(3)coonh(4) medium at ph 6.5. for lrm the sorption was also studied in 0.5m kno(3) medium. the acid pre-treatment increased the sorption capacity ... | 2007 | 17280702 |
| acetylene reduction by soil cores of maize and sorghum in brazil. | nitrogenase activity was measured by the c(2)h(2) reduction method in large soil cores (29 cm in diameter by 20 cm in depth) of maize (zea mays) and sorghum (sorghum vulgare). the activity was compared to that obtained by a method in which the roots were removed from the soil and assayed for nitrogenase activity after an overnight preincubation in 1% o(2). in a total of six experiments and 28 soil cores, the nitrogenase activity of the cores was an average of 14 times less than the activity of r ... | 1977 | 16345217 |