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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/11/1992 |
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Data da última atualização: |
27/10/2004 |
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Autoria: |
SINCLAIR, T. R. |
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Afiliação: |
USDA-ARS - Agronomy Physiology Laboratory - University of Florida - Gainesville, Florida 32611 (USA). |
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Título: |
Simultaneous limitation to soybean yield increase by carbon and nitrogen. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
In: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989. |
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Volume: |
t.1 |
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Páginas: |
p.183-188. |
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Idioma: |
Inglês |
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Conteúdo: |
Recent developments in understanding the physiological interactions within plants and in systems analysis techniques have indicated that under many circumstances multiple factors may simultaneously limit crop yield. In soybean, carbon and nitrogen are two very important resources influencing yield. Direct experimental evidence has shown that yield can be increased by increasing either carbon or nitrogen input into soybean plants. Furthermore, increased accumulation of either carbon or nitrogen results in an increased accumulation of the other. These observations provide evidence that availability of carbon and nitrogen in the plant is regulated so that these resources simultaneously limit yield. Model analyses of soybean crops support the conclusion that car- bon and nitrogen availability in the plant simultaneously limit biomass accumulation. To achieve yield improvements as a result of altered soybean physiology, future efforts will aparently require a coordinated improvement in the physiology of bot carbon and nitrogen accumulation. |
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Palavras-Chave: |
Soybean; Yield. |
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Thesagro: |
Carbono; Fisiologia; Nitrogênio; Rendimento; Soja. |
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Thesaurus Nal: |
carbon; nitrogen; physiology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01759naa a2200265 a 4500
001 1454847
005 2004-10-27
008 1989 bl uuuu u00u1 u #d
100 1 $aSINCLAIR, T. R.
245 $aSimultaneous limitation to soybean yield increase by carbon and nitrogen.
260 $c1989
300 $ap.183-188. t.1
490 $vt.1
520 $aRecent developments in understanding the physiological interactions within plants and in systems analysis techniques have indicated that under many circumstances multiple factors may simultaneously limit crop yield. In soybean, carbon and nitrogen are two very important resources influencing yield. Direct experimental evidence has shown that yield can be increased by increasing either carbon or nitrogen input into soybean plants. Furthermore, increased accumulation of either carbon or nitrogen results in an increased accumulation of the other. These observations provide evidence that availability of carbon and nitrogen in the plant is regulated so that these resources simultaneously limit yield. Model analyses of soybean crops support the conclusion that car- bon and nitrogen availability in the plant simultaneously limit biomass accumulation. To achieve yield improvements as a result of altered soybean physiology, future efforts will aparently require a coordinated improvement in the physiology of bot carbon and nitrogen accumulation.
650 $acarbon
650 $anitrogen
650 $aphysiology
650 $aCarbono
650 $aFisiologia
650 $aNitrogênio
650 $aRendimento
650 $aSoja
653 $aSoybean
653 $aYield
773 $tIn: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989.
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Registro original: |
Embrapa Soja (CNPSO) |
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