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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
08/06/1999 |
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Data da última atualização: |
08/06/1999 |
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Autoria: |
DURLEY, R. C.; KANNANGARA, T.; SEETHARAMA, N.; SIMPSON, G. M. |
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Afiliação: |
Crop Science Department, University of Saskatchewan. Saskatoon, Sask S7N OWO: and ICRISAT, Patancheru P.O., Andhra Pradesh 50234, India. |
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Título: |
Drought resistance of Sorghum bicolor. 5. genotypic differences in the concentrations of free and conjugated abscisic, phaseic and indole-3-acetic acids in leaves of field-grown drought-stressed plants |
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Ano de publicação: |
0 |
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Fonte/Imprenta: |
Canadian Journal of Plant Science, v.63, p.131-145, 183 |
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Idioma: |
Inglês |
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Conteúdo: |
Concentrations of free and conjugated abscisie acid (AbA), phaseic acid (PA) and indole-3-acetic acid (IAA) were measured in leaves of sorghum (Sorghum bicolor (L.) Moench) genotypes grown in the field. Hormone levels were compared and related to grain yield stability under drought, expressed as the percentage reduction in grain yield (percent RGY) of drought-stressed compared to irrigated plants. Although hormone concentrations were similar in irrigated plants, there was considerable genotypic variation in drought-stressed plants. In a four genotype comparison during the panicle initiation stage, mean leaf AbA concentrations in drought-stressed plants were positively related to percent RGY. |
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Palavras-Chave: |
Abbscisic acid; Drought stress; Indole-3-acetic acid; Yield. |
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Thesaurus Nal: |
phaseic acid. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01420naa a2200217 a 4500
001 1648198
005 1999-06-08
008 bl --- 0-- u #d
100 1 $aDURLEY, R. C.
245 $aDrought resistance of Sorghum bicolor. 5. genotypic differences in the concentrations of free and conjugated abscisic, phaseic and indole-3-acetic acids in leaves of field-grown drought-stressed plants
260 $c0
520 $aConcentrations of free and conjugated abscisie acid (AbA), phaseic acid (PA) and indole-3-acetic acid (IAA) were measured in leaves of sorghum (Sorghum bicolor (L.) Moench) genotypes grown in the field. Hormone levels were compared and related to grain yield stability under drought, expressed as the percentage reduction in grain yield (percent RGY) of drought-stressed compared to irrigated plants. Although hormone concentrations were similar in irrigated plants, there was considerable genotypic variation in drought-stressed plants. In a four genotype comparison during the panicle initiation stage, mean leaf AbA concentrations in drought-stressed plants were positively related to percent RGY.
650 $aphaseic acid
653 $aAbbscisic acid
653 $aDrought stress
653 $aIndole-3-acetic acid
653 $aYield
700 1 $aKANNANGARA, T.
700 1 $aSEETHARAMA, N.
700 1 $aSIMPSON, G. M.
773 $tCanadian Journal of Plant Science$gv.63, p.131-145, 183
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Embrapa Mandioca e Fruticultura (CNPMF) |
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