Biochemical and Molecular Effects Induced by Triacontanol in Acquired Tolerance of Rice to Drought Stress.

ABSTRACT: To assess the effect of triacontanol (TRIA) on rice plants grown under normal or drought conditions, rice seeds were presoaked in TRIA (35 ppm) for two hours. After 20 days of sowing, rice seedlings developed from TRIA-treated or untreated seeds were subjected to drought stress. After 10 days of plant exposure to drought stress, data of major growth attributes and the content of photosynthetic pigments were recorded. Moreover, the effect of drought stress on stomatal conductance and the photochemical efficiency of PSII (Fv/Fm) were followed. The data obtained indicated that the species of rice (Oryza sativa L.) cultivar Giza 177 under investigation was sensitive to drought stress where there were significant decreases in the fresh and dry weights of shoots and roots and in stomatal conduct

SUBMITTER: Alharbi BM 

PROVIDER: S-EPMC8391767 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature