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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
03/04/1997 |
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Data da última atualização: |
24/01/2020 |
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Autoria: |
FERNANDEZ, G. C. J.; MILLER, Jr. J. C. |
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Título: |
Yield component analysis in five cowpea cultivars. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Journal of the American Society for Horticultural Science, v. 110, n. 4, p. 553-559, 1985. |
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Idioma: |
Inglês |
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Conteúdo: |
A field study was conducted to determine the effects of rhizobial inoculation (cowpea 'EL' mixed strain) and N-fertilization with 100 kg/ha nitrate nitrogen (CaNO3 - 15,5% N) on seed and biomass yield in cowpea (Vigna unguiculata (L.) Walp.). Four indeterminate cultivars, 'Mississippi Silver', 'California Blackeye #5', 'Lady', 'Brown Crowder', and one determinate, early maturing cultivar, 'Bush Purple Hull', were used. Seed yield in inoculated and N-fertilized plants was significantly greater than that of the unfertilized, uninoculated control treatment. Generally, yield of inoculated plants was equivalent to or greater than that obtained with 100 kg N. The indeterminate cultivars yielded more biomass than did 'Bush Purple Hull' in all 3 treatments. Seed yield was higher in the indeterminate cultivars yielded more biomass than did 'Bush Purple Hull' in all 3 treatments. Seed yield was higher in the indeterminate cultivars with inoculation or N-fertilization than in 'Bush Purple Hull'; however, there were no significant differences in seed yield among cultivars in the control treatment. Harvest index in the indeterminate cultivars was increased by inoculation but not by N-fertilization. Harvest index of 'Bush Purple Hull' was at least 3 times higher than the indeterminate cultivars. Among the major seed yield components, only pods/plant was influenced by all 3 treatments, whereas seeds/pod and seed weight were fairly stable and cultivar specific. |
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Palavras-Chave: |
Caupi; Divergencia genetica; Genetic divergence; Rhizobial inoculation. |
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Thesagro: |
Fixação de Nitrogênio; Vigna Unguiculata. |
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Thesaurus Nal: |
nitrogen fixation; seed yield. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02142naa a2200229 a 4500
001 1051488
005 2020-01-24
008 1985 bl --- 0-- u #d
100 1 $aFERNANDEZ, G. C. J.
245 $aYield component analysis in five cowpea cultivars.
260 $c1985
520 $aA field study was conducted to determine the effects of rhizobial inoculation (cowpea 'EL' mixed strain) and N-fertilization with 100 kg/ha nitrate nitrogen (CaNO3 - 15,5% N) on seed and biomass yield in cowpea (Vigna unguiculata (L.) Walp.). Four indeterminate cultivars, 'Mississippi Silver', 'California Blackeye #5', 'Lady', 'Brown Crowder', and one determinate, early maturing cultivar, 'Bush Purple Hull', were used. Seed yield in inoculated and N-fertilized plants was significantly greater than that of the unfertilized, uninoculated control treatment. Generally, yield of inoculated plants was equivalent to or greater than that obtained with 100 kg N. The indeterminate cultivars yielded more biomass than did 'Bush Purple Hull' in all 3 treatments. Seed yield was higher in the indeterminate cultivars yielded more biomass than did 'Bush Purple Hull' in all 3 treatments. Seed yield was higher in the indeterminate cultivars with inoculation or N-fertilization than in 'Bush Purple Hull'; however, there were no significant differences in seed yield among cultivars in the control treatment. Harvest index in the indeterminate cultivars was increased by inoculation but not by N-fertilization. Harvest index of 'Bush Purple Hull' was at least 3 times higher than the indeterminate cultivars. Among the major seed yield components, only pods/plant was influenced by all 3 treatments, whereas seeds/pod and seed weight were fairly stable and cultivar specific.
650 $anitrogen fixation
650 $aseed yield
650 $aFixação de Nitrogênio
650 $aVigna Unguiculata
653 $aCaupi
653 $aDivergencia genetica
653 $aGenetic divergence
653 $aRhizobial inoculation
700 1 $aMILLER, Jr. J. C.
773 $tJournal of the American Society for Horticultural Science$gv. 110, n. 4, p. 553-559, 1985.
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Embrapa Meio-Norte (CPAMN) |
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