EFFECT OF TREATMENT WITH GROWTH-REGULATORS AND SCARIFICATION ON THE TOLERANCE TO WATER-STRESS IN SEEDS OF ORYZA-SATIVA LCVIAC-165
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Data
1994-01-01
Autores
Takaki, M.
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Editor
Inst Tecnologia Parana
Resumo
The effect of treatment of seeds of Oryza sativa L. cv. IAC 165 with gibberellic acid, 6-benzyladenine and ethrel on the tolerance to the water stress were analysed. Gibberellic acid had no effect and 6-benzyladenine and ethrel promoted slight increase in the tolerance to water stress, specially in darkness. After scarification, those growth regulator presented no effect. Our results suggest that 6-benzyladenine and ethrel promoted water stress tolerance due to the decrease in the resistance of the seed coat to embryo expansion.
Descrição
Palavras-chave
SEED GERMINATION, WATER STRESS, GROWTH REGULATORS, ORYZA-SATIVA
Como citar
Arquivos de Biologia E Tecnologia. Curitiba-Paraná: Inst Tecnologia Parana, v. 37, n. 3, p. 611-616, 1994.