Data/hora: 01/06/2024 11:41:23

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 08/06/1999
Data da última atualização: | 08/06/1999
Autoria: | DURLEY, R. C.; KANNANGARA, T.; SEETHARAMA, N.; SIMPSON, G. M.
Afiliação: | Crop Science Department, University of Saskatchewan. Saskatoon, Sask S7N OWO: and ICRISAT, Patancheru P.O., Andhra Pradesh 50234, India.
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
Ano de publicação: | 0
Fonte/Imprenta: | Canadian Journal of Plant Science, v.63, p.131-145, 183
Idioma: | Inglês
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.
Palavras-Chave: | Abbscisic acid; Drought stress; Indole-3-acetic acid; Yield.
Thesaurus Nal: | phaseic acid.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17229-1) - ADD - SP - -- - S11415 -  - S11415 - DIS