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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
17/07/1996 |
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Data da última atualização: |
17/07/1996 |
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Autoria: |
SPONCHIADO, B. N.; WHITE, J. W.; CASTILLO, J. A.; JONES, P. G. |
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Afiliação: |
CIAT. |
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Título: |
Root growth of four common bean cultivars in relation to drought tolerance in environments with contrasting soil types. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Experimental Agriculture, v.25, n.2, p.249-257, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Root growth of two drought tolerance and two drought sensitive bean (Phaseolus vulgaris L.) lines was compared at two locations in Colombia differing primarily in soil conditions. At Palmira, root of drought tolerant lineas reached a depth of 1.3m, while drought sensitive lines only reached 0.8m. These differences were associated with differences in seed yield, crop growth, canopy temperature and soil moisture extraction. Under acid soil conditions at Quiliacho, seed yields of supposedly drouught tolerant genotypes were similar to those of the drought sensitive lines, and root growth of all four lines was restricted to less than 0.8m. Drought avoidance through greater root growth and extraction of soil moisture appears to be an important drought tolerancemechanism in comon beans, but its usefulness is limited where soil conditions restrict root growth. |
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Palavras-Chave: |
Bean; Growth; Root; Tolerance; Tolerancia. |
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Thesagro: |
Crescimento; Feijão; Phaseolus Vulgaris; Raiz; Seca; Solo. |
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Thesaurus Nal: |
drought; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01668naa a2200313 a 4500
001 1077881
005 1996-07-17
008 1989 bl --- 0-- u #d
100 1 $aSPONCHIADO, B. N.
245 $aRoot growth of four common bean cultivars in relation to drought tolerance in environments with contrasting soil types.
260 $c1989
520 $aRoot growth of two drought tolerance and two drought sensitive bean (Phaseolus vulgaris L.) lines was compared at two locations in Colombia differing primarily in soil conditions. At Palmira, root of drought tolerant lineas reached a depth of 1.3m, while drought sensitive lines only reached 0.8m. These differences were associated with differences in seed yield, crop growth, canopy temperature and soil moisture extraction. Under acid soil conditions at Quiliacho, seed yields of supposedly drouught tolerant genotypes were similar to those of the drought sensitive lines, and root growth of all four lines was restricted to less than 0.8m. Drought avoidance through greater root growth and extraction of soil moisture appears to be an important drought tolerancemechanism in comon beans, but its usefulness is limited where soil conditions restrict root growth.
650 $adrought
650 $asoil
650 $aCrescimento
650 $aFeijão
650 $aPhaseolus Vulgaris
650 $aRaiz
650 $aSeca
650 $aSolo
653 $aBean
653 $aGrowth
653 $aRoot
653 $aTolerance
653 $aTolerancia
700 1 $aWHITE, J. W.
700 1 $aCASTILLO, J. A.
700 1 $aJONES, P. G.
773 $tExperimental Agriculture$gv.25, n.2, p.249-257, 1989.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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