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| Macêdo,Érika C. F. de; Zonta,João H.; Melo,Yuri L.; Melo,Alberto S. de; Silva,Duval C. da; Andrade,Wellerson L. de. |
| ABSTRACT The aim of this study was to evaluate the changes in osmoregulatory metabolism of cotton genotypes subjected to water deficit and recovery period. In a greenhouse, six cotton genotypes and two water managements were combined in a 6 x 2 factorial scheme, in a completely randomized design, evaluated after 14 and 22 days under water stress and recovery conditions, respectively. The water status, growth indicators and compatible solutes in the leaves were evaluated. The genotypes BRS Seridó, BRS Aroeira and BRS 7MH withstand better the stress condition because they had lower variations in their water potentials due to the osmotic adjustment and maintained their growth under water deficit conditions. The BRS 286 is the most sensitive genotype to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum L.; Osmotic adjustment; Compatible osmolytes; Drought. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800607 |
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| Silva,Adriana C. da; Suassuna,Janivan F.; Melo,Alberto S. de; Costa,Rayssa R.; Andrade,Wellerson L. de; Silva,Duval C. da. |
| ABSTRACT Sesame is an important crop in Northeast Brazil, where climate conditions require adapted genotypes and alternatives for plant defense against drought. This study aimed to evaluate the salicylic acid as drought attenuator in sesame genotypes. The experiment evaluated six genotypes (BRS Seda, CNPA-G2, CNPA-G3, CNPA-G4, LAG-Branquinha and LAG-Pretinha), five osmotic potentials (0, -0.2, -0.4, -0.6 and -0.8 MPa) and three seed treatments (soaking in distilled water, in salicylic acid and no treatment). CNPA-G4 is tolerant to drought in the germination stage. Salicylic acid at 10-5 M induced tolerance to drought stress in sesame, but it is necessary to test other concentrations. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sesamum indicum L.; Drought; Tolerance promotion. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000300156 |
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