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  • Articles  (395)
  • Springer  (388)
  • Periodicals Archive Online (PAO)  (7)
  • American Geophysical Union
  • 1980-1984  (248)
  • 1975-1979  (147)
  • 1984  (248)
  • 1978  (147)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (395)
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  • Articles  (395)
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  • 1980-1984  (248)
  • 1975-1979  (147)
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  • 1
    Electronic Resource
    Electronic Resource
    The effects of managanese and nitrate supply on the levels of phenolics and lignin in young wheat plants (1984)
    Springer
    Plant and soil 81 (1984), S. 437-440 
    Details
    ISSN: 1573-5036
    Keywords: Lignin ; Manganese ; NO 3 − Phenols ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Managanese deficiency (〈 18 μg g−1 Mn) resulted in decreased levels of phenols in wheat shoots and decreased levels of lignins in both roots and shoots. These observed reductions in phenol contents was due largely to a decrease in the alkaline labile phenol component. Levels of nitrate supplied in solution influenced both phenol and lignin production; high nitrate levels (15 mM) resulted in a reduction in phenol and lignin in the shoot but stimulated lignin production in root tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02323058
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  • 2
    Electronic Resource
    Electronic Resource
    Naturally-occurring biological control of the boll weevil [Col.: Curculionidae] (1984)
    Springer
    BioControl 29 (1984), S. 1-9 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Les fourmis importées,Solenopsis invicta Buren sont des prédateurs efficaces du charançon du coton,Anthonomus grandis Boheman dans les champs de coton de l'est du Texas. Les charançons n'ont pas causé de dommages économiques en 11 ans à cause de la mortalité attribuée essentiellement à l'action des fourmis. La suppression de celles-ci a provoqué une augmentation des dégâts dus au charançon. Les insecticides employés contre les ravageurs du coton réduisent beaucoup l'abondance des fourmis. Pour préserver cette efficace prédation des charançons par les fourmis, il convient de supprimer les applications d'insecticides qui ne sont pas nécessaires.
    Notes: Abstract Red imported fire ants,Solenopsis invicta Buren, are effective predators of the boll weevil,Anthonomus grandis Boheman, in east Texas cotton fields. Boll weevils caused no economic loss in 11 years due to mortality attributed primarily to ants. Removal of the ants resulted in an increase in crop damage by the boll weevil. Insecticides used for cotton pests greatly reduce the abundance of the ants. To capitalize on this effective predation of boll weevils by ants, unnecessary applications of insecticides should be eliminated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372203
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  • 3
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    The effects of managanese and nitrate supply on the levels of phenolics and lignin in young wheat plants (1984)
    Springer
    Details
    Publication Date: 1984-10-01
    Print ISSN: 0032-079X
    Electronic ISSN: 1573-5036
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
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    PAPER CURRENT
  • 4
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1978)
    Springer
    European journal of nutrition 17 (1978), S. 124-127 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021119
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  • 5
    Electronic Resource
    Electronic Resource
    Studies on the nitrogen and water relations of wheat II. Effects of varying nitrogen and water supply on growth and grain yield (1984)
    Springer
    Irrigation science 5 (1984), S. 105-121 
    Details
    ISSN: 1432-1319
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Wheat was grown in field and glasshouse experiments to assess the effect of nitrogen fertilizer on yield when water stress occurred in the later half of the growth. N application was deferred until the main culm apex of the plant was at the double-ridge stage of development. In the glasshouse water stress was imposed by altering the watering regime; in the field it was anticipated as naturally occurring and compared to an irrigated control. The response to deferred N was much stronger at adequate water supply giving rise to a significant positive N X W interaction effect. This positive N X W interaction was shown by number of ears, leaf area index, green area duration, water use and root growth, as well as grain yield. In both the glasshouse and field, N increased post-anthesis green area duration (PGD) which was highly correlated with grain yield, but since the components of grain yield determining the response to N were largely established by anthesis (number of ears), PGD does not appear to increase grain yield, which was rather caused by increased survival of tillers. In concert with its effect on PGD, deferred N resulted in greater root survival and/or growth at deeper layers late in the season. Water stress as measured in these experiments was insufficient to cause decreases in yield from use of N at low water supply. However, in the field nitrogen application did lower plant water potential late in the growing season.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00272549
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  • 6
    Electronic Resource
    Electronic Resource
    Preface (1984)
    Springer
    Plant and soil 78 (1984), S. IX 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02277833
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  • 7
    Electronic Resource
    Electronic Resource
    A role for managanese in the resistance of wheat plants to take-all (1984)
    Springer
    Plant and soil 78 (1984), S. 441-444 
    Details
    ISSN: 1573-5036
    Keywords: Gaeumannomyces graminis vartritici ; Hay-die ; Manganese deficiency ; Take-all ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The hypothesis that wheat plants deficient in managenese are predisposed to infection byGaeumannomyces graminis is outlined, and a test of the hypothesis in a soil system is reported. The results supported the hypothesis: wheat plants growing in managanese-deficient soil, although not showing foliar symptoms, were markedly more susceptible to infection; plant analysis confirmed the nutrient status of the plants. A review of the literature on take-all in wheat coupled with the results of our experiments suggests a reinterpretation of the etiology of this disease, since those edaphic factors which promote infection by this organism are those which also render managese unavailable to the host. Managenese nutrition is proposed as a common factor in many of the environmental conditions which influence the host-pathogen balance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450379
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  • 8
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 5. The S-genotype of tetraploid potato cultivar gineke (1978)
    Springer
    Euphytica 27 (1978), S. 385-388 
    Details
    ISSN: 1573-5060
    Keywords: Solanum tuberosum ; potato ; incompatibility ; dihaploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Investigations of the genetics of self-compatibility and self-incompatibility in dihaploids and diploid derivatives from cv. Gineke revealed the presence of S 1, S2 and S 3 at the S-locus of Gineke and in addition an S 1-allele on a translocation. By means of a complete tester set involving the S-alleles S 1, S2 and S 3 (all from Gineke) and S 4 (from Black 4495) it was demonstrated that some Gineke dihaploids were compatible with all six testers. This indicated a fourth S-allele in Gineke, which differs from those in the tester series and was therefore assigned S 5. Additional evidence was obtained from an analysis of F1's from crosses of two S 5-bearing dihaploids and one of the testers. So the S-genotype of cv. Gineke was identified as S 1S2S3S5/S1, the second S 1 being the S-allele on a translocated fragment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043163
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  • 9
    Electronic Resource
    Electronic Resource
    Variation in the crude protein content of field beans (Vicia faba L.) in relation to the possible improvement of the protein content of the crop (1978)
    Springer
    Euphytica 27 (1978), S. 487-495 
    Details
    ISSN: 1573-5060
    Keywords: Vicia faba ; field bean ; crude protein content ; variation ; improvement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A survey of the protein content of various field bean varieties indicates a range of variation extending over sixteen units of crude protein from 22–38%. Analysis of single plants from within three WPBS varieties Dylan. Danas and Dacre indicates that a similar range exists within commercial varieties. Examination of the progenies of high and low protein single plant selections together with a preliminary estimation of heritability suggest that protein content is highly heritable. No significant correlations were found between protein content and seed yield.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043174
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  • 10
    Electronic Resource
    Electronic Resource
    Residual Mn and associated soybean yield response from MnSO4 application on a sandy loam soil (1984)
    Springer
    Plant and soil 81 (1984), S. 101-110 
    Details
    ISSN: 1573-5036
    Keywords: Extractable Mn ; Foliar fertilization ; Mn deficiency ; Seed parts ; Tissue nutrient concentrations ; Total Mn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A field experiment was initiated in 1977 to evaluate soybean (Glycine max (L.) Merr.) response to rates of broadcast Mn and was continued in 1978 to determine the residual effects of applied Mn. This study was conducted on a Dragston fine sandy loam soil with an initial pH of 6.0 and 2.5% organic matter. In 1977 the 40kg Mn/ha rate increased seed yields by 900 kg/ha and raised leaf tissue Mn concentration from 10.3 to 16.1 μg Mn/g. Residual Mn increased seed yield and leaf Mn concentration. Reapplied Mn produced higher yields and tissue Mn levels than the residual Mn. The Mitscherlich plant growth model r=0.67**, fit the relationship between yield and leaf Mn concentration. Double acid extractable Mn in soil sampled in 1978 was linearly related to broadcast Mn and soybean yields. Applied Mn increased Mn concentrations of soybean seed parts by 97%, 182% and 109% in the cotyledon, embryo and seedcoat, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02206899
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