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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Semiárido. |
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Data corrente: |
15/04/1997 |
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Data da última atualização: |
15/04/1997 |
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Autoria: |
SHACKEL, K. A.; HALL, A. E. |
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Título: |
Effect of intercropping on the water relations of sorghum and cowpea. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Field Crops Research, v. 8, n. 5, p. 381-387, 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
Sorghum (Sorghum bicolor (L.) Walp.) and cowpea (Vigna unguiculata (L.) Walp.) were grown as sole-crops or as an intercrop under frequently irrigated and water-limited field conditions to test the hypothesis that competition for soil moisture would influence the water relations of these two species. Measurements of xylem pressure potential and osmotic potential were made at predawn and midday throughout a summer growing season. Sorghum and cowpea exhibited contrasting levels of dehydration avoid-ance when grown as sole-crops, but intercropping did not cause any substantial change in the water relations of either species. Midday xylem pressure potential and osmotic potential of cowpea leaves were slightly higher in the intercropped than in the sole-crop-pedtreatment, presumably as a result of partial shading by the sorghum plants. The total quantities and patterns of soil water depletion were similar for both species as solecrops and for the intercropped treatment. |
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Palavras-Chave: |
Bean; Caupi; Consorciação; Consorcio; Cowpea; Cultivo; Estresse hidrico; Sorghum. |
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Thesagro: |
Feijão; Sorghum Bicolor; Sorgo; Vigna Unguiculata. |
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Thesaurus Nal: |
water stress. |
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Categoria do assunto: |
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A Sistemas de Cultivo |
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Marc: |
LEADER 01696naa a2200289 a 4500
001 1054127
005 1997-04-15
008 1984 bl --- 0-- u #d
100 1 $aSHACKEL, K. A.
245 $aEffect of intercropping on the water relations of sorghum and cowpea.
260 $c1984
520 $aSorghum (Sorghum bicolor (L.) Walp.) and cowpea (Vigna unguiculata (L.) Walp.) were grown as sole-crops or as an intercrop under frequently irrigated and water-limited field conditions to test the hypothesis that competition for soil moisture would influence the water relations of these two species. Measurements of xylem pressure potential and osmotic potential were made at predawn and midday throughout a summer growing season. Sorghum and cowpea exhibited contrasting levels of dehydration avoid-ance when grown as sole-crops, but intercropping did not cause any substantial change in the water relations of either species. Midday xylem pressure potential and osmotic potential of cowpea leaves were slightly higher in the intercropped than in the sole-crop-pedtreatment, presumably as a result of partial shading by the sorghum plants. The total quantities and patterns of soil water depletion were similar for both species as solecrops and for the intercropped treatment.
650 $awater stress
650 $aFeijão
650 $aSorghum Bicolor
650 $aSorgo
650 $aVigna Unguiculata
653 $aBean
653 $aCaupi
653 $aConsorciação
653 $aConsorcio
653 $aCowpea
653 $aCultivo
653 $aEstresse hidrico
653 $aSorghum
700 1 $aHALL, A. E.
773 $tField Crops Research$gv. 8, n. 5, p. 381-387, 1984.
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Embrapa Meio-Norte (CPAMN) |
