CAN CHEMICAL AGENTS ASSOCIATED WITH PRIMING ATTENUATE STRESS IN CORN SEEDS DURING THE INITIAL ESTABLISHMENT?
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https://doi.org/10.32404/rean.v8i4.5780Keywords:
Calcium Nitrate, Potassium Nitrate, Priming, Zea maysAbstract
Chemical substances for physiological conditioning are employed to reduce the stresses caused by the adversities affecting corn seeds during the seedling emergence and establishment. This study aimed to evaluate different chemical agents used in the physiological conditioning of corn seeds to overcome abiotic stresses at the time of germination. The experimental design was completely randomized arranged in a 2 x 5 factorial scheme consisting of two seed lots, four chemical agents used in physiological conditioning, and the control treatment. The seeds were subjected to different abiotic stresses: low-temperature, hypoxia, salt, and water. The physiologic seed conditioning was carried out through direct immersion, for 18 hours at 25ºC, under low-temperature stress condition. All physiologic conditioning methods proved to effectively minimize this type of abiotic stress during the germination process. Using nitrates via physiological conditioning is an alternative to promote beneficial effects in stressful situations.
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