Gibberellic Acid (GA3) In The Germination And Degradation Of Lipids In Seeds Of Atemoia Cv. ‘Thompson’

Abstract

The study aimed to evaluate the application of different concentrarions of GA₃ acting on lipid degradation during the germinative process of atemoia seeds (Annona x atemoya Mabb.). Two experiments were installed, one of the DIC type (4 repetitions of 25 seeds and 4 treatmens (0, 250, 500, 1000 mg L^-1)) to evaluate the effect of GA₃ on the germination process and another of the DIC type in a factorial scheme (4 x 6) with 4 concentrations of GA₃ and 5 collection times to assess lipid degradation. The concentrations of 500 and 1000 mg L^-1 of GA₃ increased the percentage of germination by 25 and 20% compared to the control treatment. The onset of lipid degradation was observed 24 h after seed immersion in the treatments and at 15 days after the beginning of the treatments, the application of 500 and 1000 mg L^-1 GA₃ intensified the degradation. In conclusion, the gibberellic acid applied to atemoya seeds increases germinability and lipid degradation during the germination process.