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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
16/04/1997 |
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Data da última atualização: |
16/04/1997 |
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Autoria: |
LOPEZ, F. B.; SETTER, T. L.; McDAVID, C. R. |
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Título: |
Carbon dioxide and light responses of photosynthesis in cowpea and pigeonpea during water deficit and recovery. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Plant Physiology, v. 85, n. 4, p. 990-995, 1987. |
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Idioma: |
Inglês |
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Conteúdo: |
Greenhouse-grown pigeonpea (Cajanus cajan, [L.] Millsp.; cultivar UW-10) and cowpea (Vigna unguiculata [L.] Walp.; cultivar California No. 5) were well-watered (control) or subjected to low water potential by withholding water to compare their modes of adaptation to water-limited conditions. Leaf CO2 exchange rate (CER), leaf diffusive conductance to CO2 (gL), and CO2 concentration in the leaf intercellular air space (Ci) were determined at various CO2 concentrations and photon flux densities (PFD) of photosynthetically active radiation (400 to 700 nanometer). In cowpea, gL declined to less than 15% of controls and total water potential (Ww) at midafternoon declined to -0.8 megapascal after 5 days of withholding water, whereas gL in pigeonpea was about 40% ofcontrols even though midafternoon Ww was -1.9 megapascal. After 8 days of withholding water Ww at midafternoon declinet to -0.9 and -2.4 megapascals in cowpea and pigeonpea, respectively. The solute component of water potential (Ww) decreased substantially less in cowpea than pigeonpea. Photosynthetic CER at saturation photon flux density (PFD) and ambient external CO2 concentration (360 microliters per liter) on day 5 of withholding decreased by 83 and 55% in cowpea and pigeonpea, respectively. |
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Palavras-Chave: |
Caupi; Cowpea; Deficit hidrico. |
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Thesagro: |
Cajanus Cajan; Fotossíntese; Guandu; Vigna Unguiculata. |
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Thesaurus Nal: |
photosynthesis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01937naa a2200241 a 4500
001 1052519
005 1997-04-16
008 1987 bl --- 0-- u #d
100 1 $aLOPEZ, F. B.
245 $aCarbon dioxide and light responses of photosynthesis in cowpea and pigeonpea during water deficit and recovery.
260 $c1987
520 $aGreenhouse-grown pigeonpea (Cajanus cajan, [L.] Millsp.; cultivar UW-10) and cowpea (Vigna unguiculata [L.] Walp.; cultivar California No. 5) were well-watered (control) or subjected to low water potential by withholding water to compare their modes of adaptation to water-limited conditions. Leaf CO2 exchange rate (CER), leaf diffusive conductance to CO2 (gL), and CO2 concentration in the leaf intercellular air space (Ci) were determined at various CO2 concentrations and photon flux densities (PFD) of photosynthetically active radiation (400 to 700 nanometer). In cowpea, gL declined to less than 15% of controls and total water potential (Ww) at midafternoon declined to -0.8 megapascal after 5 days of withholding water, whereas gL in pigeonpea was about 40% ofcontrols even though midafternoon Ww was -1.9 megapascal. After 8 days of withholding water Ww at midafternoon declinet to -0.9 and -2.4 megapascals in cowpea and pigeonpea, respectively. The solute component of water potential (Ww) decreased substantially less in cowpea than pigeonpea. Photosynthetic CER at saturation photon flux density (PFD) and ambient external CO2 concentration (360 microliters per liter) on day 5 of withholding decreased by 83 and 55% in cowpea and pigeonpea, respectively.
650 $aphotosynthesis
650 $aCajanus Cajan
650 $aFotossíntese
650 $aGuandu
650 $aVigna Unguiculata
653 $aCaupi
653 $aCowpea
653 $aDeficit hidrico
700 1 $aSETTER, T. L.
700 1 $aMcDAVID, C. R.
773 $tPlant Physiology$gv. 85, n. 4, p. 990-995, 1987.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 3 | |
| 1. |  | CARVALHO, O. S.; SAA, A.; MONTES, J. M. G.; CABALLERO, R.; GUERRERO LÓPEZ, F. Variabilidad temporal de algunas propiedades químicas en un suelo sometido a distintas sucesiones de cultivo. Temporal variability of chemical properties in a soil with three cultivation systems Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 12, p. 2299-2309, nov. 1999 Título em inglês: Temporal variability of chemical properties in a soil with three cultivation systems.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | STELLA, L. A.; PRATES, E. R.; PIAGGIO, L.; STELLA, C. A.; SARTORI, E.; ROSSETO, J.; GENRO, T. C. M.; LOPEZ, F. Ruminal in vitro fermentation kinetics and chemical composition of Sorghum cv. Nutritop at different stage of regrowth. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Viçosa, MG: Sociedade Brasileira de Zootecnia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 3 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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