Publications

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assay of substances stimulatory to legume nodule formation.two methods were developed for the assay of substances stimulatory to the nodulation of bean (phaseolus vulgaris) roots growing from segments of hypocotyl tissue. coconut water was the chief source of active material, but extracts of cotyledons, hypocotyls and leaves of beans and of horse chestnut fruits were also stimulatory. high concentrations of nitrate improved nodulation both in the presence and absence of coconut water. the ash of coconut water was inactive. whole alfalfa seedlings formed ...196716656537
enhancement of infectivity by combination of two ribonucleic acid components from alfalfa mosaic virus.rna was extracted from alfalfa mosaic virus 425. infectivity was determined in density gradient fractions and in all possible combinations of two fractions. certain combinations were remarkably infectious. this led to the purification through two cycles of sucrose gradient centrifugation of a 27 s and a 14 s rna, from bottom component and top component a, respectively. the purified bottom component rna had a low infectivity; when purified top component a rna was added, infectivity increased cons ...196718614088
the effects of alfalfa on serum cholesterol and in modifying or preventing cholesterol-induced atherosclerosis in rabbits. 19676030862
stimulatory effects of diseased and disease-free alfalfa hay on the uterus of ovariectomized ewes. 19676039798
effect of various essential oils isolated from douglas fir needles upon sheep and deer rumen microbial activity.the effects of essential oils isolated from douglas fir needles on sheep and deer rumen microbial activity were tested by use of an anaerobic manometric technique. rumen microorganisms were obtained from a sheep which had been fed mainly on alfalfa hay and dried range grass. one deer used in this study had access to douglas fir trees the year around, whereas the other deer had no access to douglas fir. all of the monoterpene hydrocarbons isolated from douglas fir needles-alpha-pinene, beta-pinen ...19676049303
toxicity of tobacco smoke to the spotted alfalfa aphid therioaphis maculata (buckton). 19676053423
[on a substance inhibiting the sperm vesicle from alfalfa]. 19676055939
[effects of administration of constituents of the medic herb (medicago sativa l.) in broilers]. 19676057663
bloat in cattle. 13. efficacy of molasses-salt blocks containing poloxalene in control of alfalfa bloat. 19676064143
transfer coefficients of fallout cesium-137 to milk of dairy cattle fed pasture, green-cut alfalfa, or stored feed. 19676067957
effects of feed intake upon bloating patterns in lambs fed alfalfa soilage. 19676068030
[antagonism of soil fungi to verticillium albo-atrum r. and b., agent of verticillium wilt of alfalfa]. 19676068176
poloxalene for treatment of cattle with alfalfa bloat. 19676068181
copper sulfate-induced fermentation changes in continuous cultures of the rumen microbial ecosystem.the effect of cuso(4) on fermentation was studied in a continuously cultured rumen ecosystem. cuso(4), introduced at a level of 50 mg/500 ml of culture volume twice daily, caused a marked inhibition of fermentation of concentrates. fermentation of alfalfa hay was not inhibited by the same cuso(4) concentration when the inoculum for the culture was obtained from a cow maintained on a normal concentrate ration. when the inoculum was from a cow on a high concentrate ration, hay fermentation was par ...19676077413
[activating effect of alfalfa extracts on the activity of estradiol dipropionate]. 19676077869
evaluation of alfalfa-brome forage stored as wilted silage, low-moisture silage, and hay. 19675624629
forage evaluation. i. performanc of holstein heifers fed only early-cut or late-cut alfalfa hay on a free-choice basis. 19685637994
forage evaluation. ii. productive response of first-calf holstein heifers fed early-cut or late-cut alfalfa hay as the only source of enrgy throughout a total lactation. 19685637995
the precipitation of alfalfa mosaic virus by magnesium. 19685640827
resistance of the alfalfa caterpillar, colias eurytheme, at high temperatures to a cytoplasmic-polyhedrosis virus and thermal inactivation point of the virus. 19685649247
isolation of replicative rna from alfalfa mosaic virus-infected plants by chromatography on hydroxyapatite columns. 19685653658
infection of the alfalfa weevil, hypera postica, by the fungus beauveria bassiana. 19685654771
in vitro lactate metabolism by ruminal ingesta.ruminal ingesta (300 ml) obtained from a fistulated cow fed alfalfa hay (h), 3.6 kg of grain mixture with corn silage fed ad libitum (s), 2.5:1 grain-alfalfa hay mixture (g), or a 2.5:1 grain-alfalfa hay mixture providing 545 g of sodium and calcium lactate daily (l) were incubated for 8 hr with nonpolymerized sodium lactate or 17% polymerized lactic acid neutralized to ph 6.7. polymerization had no effect on the rate of lactate utilization. the initial rates of lactate metabolism for the h, g, ...19685659361
lysis of viable rumen bacteria in bovine rumen fluid.streptococcus bovis and butyrivibrio sp. were labeled with thymidine-methyl-(3)h, washed, and resuspended in rumen fluid or rumen fluid fractions obtained from holstein and jersey cows fed alfalfa hay once daily. factors affecting the lytic activity found in untreated rumen fluid were examined. day to day variation and differences before and after feeding were observed for the same cow. there were also differences between cows on the same day. for a given rumen fluid, the rate of release of labe ...19685659364
quantitative relationships between administered cholesterol and alfalfa required to prevent hypercholesterolaemia in rabbits. 19685676445
forage evaluation. 3. comparison of severalmethds of evaluating two alfalfa hays fed to lactating cows. 19685688989
occurrence of methyl sulfide in milk from cows fed fresh, dried, or stored alfalfa. 19685689105
relationship of ruminal intake of dry matter and pectin methyl esterase to bloat-producing capacity of irrigable alfalfa (medicago sativa) in heifers. 19685692892
purification and fractionation of alfalfa mosaic virus with polyethylene glycol. 19685711434
[the antigonadotropic action of lucerne "medicago sativa"]. 19685737688
[damage to milk cows after the intake of alfalfa containing hemolysin]. 19685751093
comparison of amino acid and alfalfa supplementation of purified diets ruminants. 19684170518
the biological function and mutual dependence of bottom component and top component a of alfalfa mosaic virus. 19684967833
alfalfa mosaic virus: comparative investigation of top component a and bottom component by means of fingerprinting and immunological techniques. 19684972584
host resistance reflected in differential nematode population structures.relative efficiency of host plants to support reproduction of the garlic race of ditylenchus dipsaci can be partially explained by diflerential population structures. if axenic cultures of callus tissue from onion, white clover, red clover, and alfalfa are arranged in order of decreasing host suitability, the nematode populations are simultaneously arranged in order of increasing maleness.19685657331
thermotactic response of some plant parasitic nematodes.attraction of ditylenchus dipsaci and pratylenchus penetrans to a temperature gradient was tested. heating wires, infrared radiations and germinating alfalfa seeds were used to create a temperature gradient as small as 0.033 c/cm in agar. p. penetrans, d. dipsaci, and tylenchorhynchus claytoni responded to a temperature gradient of 0.033 c over a 4-cm distance from the heat source. trichodorus christiei and xiphinema arnericanum showed no response. individuals of p. penetrans oriented their head ...196919325653
population dynamics of plant nematodes in cultivated soil: effect of sod-based rotations in cecil sandy loam.in a 6-year study of four nematode species in sod-based corn (zea mays) rotations, population densities varied with different cropping systems. continuous corn, with or without a winter rye (secale cereale) or vetch (vicia villosa) cover, favored an increase of pratylenchus zeae and suppressed trichodorus christiei, helicotylenchus dihystera, and xiphinema americanum. a four-year sod-based rotation (3 years sod, 1 year corn) of 'coastal' bermudagrass (cynodon dactylon) and fescue (festuca arundi ...196919325691
degradation of alfalfa mosaic virus by pancreatic ribonuclease. 19695762209
primary structure of alfalfa ferredoxin. 19695769194
populations of dalapon-decomposing bacteria in soil as influenced by additions of dalapon or other carbon sources.the numbers of bacteria capable of decomposing the herbicide dalapon were determined for five soils by the most-probable-number method. before treatment of the soils with dalapon, the numbers varied from 1,000 to 10,000 cells per g of soil. incubation of the soils with dalapon resulted in large increases (100-fold) in two of three soils in which dalapon was decomposed rapidly. lack of increase in numbers in spite of rapid decomposition in the other soil probably indicated breakdown by a chemical ...19695772393
[electron microscopical study of the replicative rna of alfalfa mosaic virus]. 19695772491
effects of corn distillers dried grains with solubles and dehydrated alfalfa meal on the utilization of urea nitrogen in beef cattle. 19695773541
electron microscopy on in vivo aggregation forms of a strain of alfalfa mosaic virus. 19695776316
studies on alfalfa mosaic virus. i. the protein and nucleic acid. 19695777560
studies on alfalfa mosaic virus. ii. the structure of the virus components. 19695777561
infection of phaseolus vulgaris with alfalfa mosaic virus: inhibitory effect of pretreatment with turnip yellow mosaic virus. 19695777564
the reversible dissociation of alfalfa mosaic virus. 19695777565
nosema sp. infecting a laboratory colony of the alfalfa weevil. 19695777836
ineffectiveness of a microsporidian and a granulosis virus in activating a cytoplasmic polyhedrosis virus in the alfalfa caterpillar, colias eurytheme. 19695777841
separation of top and bottom components of alfalfa mosaic virus by combined differential and density gradient centrifugation. 19695782930
the production of new types of symptoms by mixtures of different components of two strains of alfalfa mosaic virus. 19695784045
comparison of 131-i retention in the plasma of rabbits fed toxic quantities of cupric or molybdate ions as supplements to a commercial pelleted diet or to an oats-alfalfa laboratory diet. 19695801359
nutritional studies on whole-extract coagulated leaf protein and fractionated chloroplastic and cytoplasmic proteins from lucerne (medicago sativa). 19695807296
amino acid analyses of two strains of alfalfa mosaic virus. 19695811915
comparisons between alfalfa silage and hay. 19695812619
distribution and appearance of alfalfa mosaic virus in infected plant cells. 19695358830
nutritive value of leaf protein from lucerne (medicago sativa). growth responses in rats at different protein levels & to supplementation with lysine &-or methionine. 19695359106
value of dehydrated alfalfa in rations for lactating cows. 19695391053
rumen removal rates of some chemically defined fractions of 14-c-labeled alfalfa. 19695391974
comparative abilities of stemphylium botryosum and helminthosporium turcicum to induce and degrade a phytoalexin from alfalfa. 19695392960
degradation of alfalfa phytoalexin by stemphylium botryosum. 19695392961
[the effect of common leaf spot (pseudopeziza medicaginis (lib.) sacc.) and leaf spot (stemphylium botryosum wallr.; phoma medicaginis malbr. et roum.) on the co2 assimilation by the leaves of alfalfa (medicago sativa l.)]. 19695396112
[mass poisoning in swine after feeding with alfalfa meal contaminated with coumarin contining plants]. 19695407788
alfalfa mosaic virus. 19695001896
[bacterial successions during decomposition of alfalfa, rye straw and corn roots]. 19704922305
studies on alfalfa mosaic virus. 3. reversible dissociation and reconstitution studies. 19705411192
studies on nutritive value of leaf protein from lucerne (medicago sativa). ii. effect of processing conditions. 19705423332
aggregation of alfalfa mosaic virus under influence of externally applied agents. 19705424818
nep related to intake level of baled and pelleted baled alfalfa when fed to lactating dairy cows. 19705461735
metabolism of carbofuran alfalfa residues in the dairy cow. 19705474239
electron microscopy of the replicative rna from tobacco mosaic virus ana alfalfa mosaic virus: morphology and association of the double-stranded rna. 19705474462
electron microscopy on the behavior of two strains of alfalfa mosaic virus in mixed infections. 19705483266
beef production on irrigated alfalfa pastures. 19705485856
[the morphology of alfalfa mosaic virus particles]. 19705517366
effect of dry matter levels of alfalfa silage on intake and metabolism in the ruminant. 19705520350
degradation and utilization of hemicellulose from intact forages by pure cultures of rumen bacteria.several pure strains of rumen bacteria have previously been shown to degrade isolated hemicelluloses from a form insoluble in 80% acidified ethanol to a soluble form, regardless of the eventual ability of the organism to utilize the end products as energy sources. this study was undertaken to determine whether similar hemicellulose degradation or utilization, or both, occurs from intact forages. fermentations by pure cultures were run to completion by using three maturity stages of alfalfa and t ...19705530342
three nucleoprotein components of alfalfa mosaic virus necessary for infectivity. 19704985557
the in vivo behaviour of twenty-four strains of alfalfa mosaic virus. 19704098410
studies on alfalfa mosaic virus. iv. an unusual strain. 19704099064
penetration of alfalfa roots by different stages of pratylenchus penetrans (cobb). 197019322310
calcium nutrition and resistance of alfalfa to ditylenchus dipsaci.stem nematode-susceptible 'atlantic' and resistant 'lahontan' alfalfa seedlings, grown in sand and watered with complete nutrient solutions containing 0.75, 1.5, 3.0, 6.0, or 12.0 mm ca/liter, were inoculated with ditylenchus dipsaci (the stem nematode) 5-6 days after emergence. approximately equal numbers of nematodes entered the tissues of each variety/ca concentration within 2 days. penetration was reduced at 12 mm ca/liter. reproduction during 21 days following inoculation yielded 3-fold, or ...197019322318
symptomless resistance of alfalfa to meloidogyne incognita acrita.penetration, development and migration of the cotton root-knot nematode, meloidogyne incognita acrita, in resistant and susceptible alfalfa varieties was compared. larvae entered both resistant and susceptible plants in approximately the same numbers. after 3 to 4 days, the number of larvae in resistant roots decreased sharply until at 7 days fewer than 5 larvae/seedling and no nematode development could be found. in susceptible roots, larvae became sedentary and developed normally; egg producti ...197019322284
agriculturally-polluted irrigation water as a source of plant-parasitic nematode infestation.water from a major irrigation canal and water from a deep well was used to irrigate plants growing in methyl bromide fumigated screenhouse ground beds. nematode populations in these beds were compared during three seasons of continuous cropping to alfalfa, bean, eggplant, mint, sugarbeet, or wheat. beds irrigated with canal water became heavily infested with a variety of plant parasitic nematodes while those receiving well water did not.197019322327
routine alfalfa (medicago sativa) cutting program and its influence on pea aphid (acyrthosiphon pisum harris) populations.1. cutting does not influence the general features of the pea aphid population trends on alfalfa. 2. cutting significantly influences host plant conditions. 3. by affecting host-plant conditions, cutting may partially influence aphid population density on alfalfa. 4. the plant growth is not always coincident with the increase of aphid numbers. 5. migration of aphids from alfalfa could have basic disruptive effects on the alfalfa field ecosystem in some years. 6. routine alfalfa cutting may be pa ...197028309788
sex control by bees: a voluntary act of egg fertilization during oviposition.the alfalfa leaf-cutter bee, megachile rotundata, stops abdominal contractions briefly during oviposition of female eggs but not during oviposition of male eggs. sperm stored in the spermatheca probably is pumped onto the micropyle of the egg during this pause. the stimulus inducing fertilization seems to be associated with the depth of the nesting tunnel.19705409486
attraction of ditylenchus dipsaci and meloidogyne hapla by resistant and susceptible alfalfa seedlings.ditylenchus dipsaci kühn were equally attracted to and equally invaded resistant ('lahontan') and susceptible ('ranger') germinating alfalfa (medicago sativa l.) seedlings exposed singly in moist sand except at a distance of 12.5 mm at 20 c when the susceptibles proved more attractive than the resistants. larvae hatching from egg-masses of meloidogyne hapla chitwood were also attracted equally to germinating seedlings of resistant ('m-9') and susceptible ('lahontan') alfalfa offered singly. when ...197119322372
alfalfa mosaic virus in lucerne plants and its transmission by aphids in the course of the vegetation period. 19714399140
efficiency of alfalfa mosaic virus transmission by aphids in relation to the level of virus in plants. 19714399142
formation of tumor-like structures on legume roots by rhizobium.tumor-like structures appeared on the roots of medicago sativa, alysicarpus vaginalis, and trifolium pratense inoculated with a non-nodulating strain of rhizobium trifolii or with irradiated cultures of either of two nodulating rhizobium strains. the structures were composed of disorganized plant tissues which, on the basis of microscopic examination, were devoid of bacterial cells. rhizobia which could nodulate legumes of one cross-inoculation group and which were able to induce formation of su ...19714995381
self-assembly of protein subunits from alfalfa mosaic virus. 19715543287
molecular weight of the coat protein of alfalfa mosaic virus. 19715543973
effect of ileal bypass and alfalfa on hypercholesterolaemia. 19715547660
effect of dehydrated alfalfa meal and of fish solubles on growth and nitrogen and energy balance of lambs and beef cattle fed a high urea liquid supplement. 19715571561
nitrogen studies with lambs fed alfalfa (medicago sativa) as hay, low-moisture and high-moisture silages. 19715087373
the digestion of dried lucerne (medicago sativa l.) and dried sainfoin (onobrychis viciifolia scop.) by sheep. 19715090462
efficacy of levamisole in alfalfa pellets against naturally occurring gastrointestinal nematode infections in calves. 19715094521
meadow vole nutrition studies with alfalfa diets. 19715098877
effect of dehydrated alfalfa products on the utilization of urea nitrogen in beef cattle. 19715122306
a functional equivalence of top component a rna and coat protein in the initiation of infection by alfalfa mosaic virus. 19715124242
examination of alfalfa mosaic virus protein on polyacrylamide gels. 19715125569
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