During seed development, plant hormones are involved in processes such as the accumulation of reserves, cellular activity and physiological responses. The present study aimed to analyze levels of abscisic acid, gibberellins, auxins, salicylic acid and their role in the physiological responses during development of A. angustifolia seeds in two years of production. Seeds were collected in the stages cotyledonary, II, III and IV during 2 years and submitted to germination, tetrazolium and electrical conductivity tests. The embryonic axes and cotyledons were extracted from the seeds and submitted to hormones analyses. The results demonstrated that environmental conditions during development affected the time when seeds reached physiological maturity and hormone levels. In 2015, seed development occurred under conditions of lower rainfall, cold hours and insolation, providing the formation of larger seeds, favoring a higher abscisic acid synthesis and accumulation, anticipating/shortening seed maturation. The results highlight the antagonistic relationship between abscisic acid and auxins, which acts as a regulatory factor for faster germination. In conclusion, changes in the levels of abscisic acid, gibberellins, auxins, salicylic acid and their role in physiological responses during seed development are linked to climatic conditions during maturation.

在种子发育过程中，植物激素参与各种过程，例如储备量的积累，细胞活性和生理反应。本研究旨在分析脱落酸，赤霉素，生长素，水杨酸的水平及其在拟南芥发育过程中的生理反应中的作用。两年内生产种子。在2年的子叶，II，III和IV阶段收集种子，并进行发芽，四唑鎓和电导率测试。从种子中提取胚轴和子叶，并进行激素分析。结果表明，发育过程中的环境条件影响了种子达到生理成熟和激素水平的时间。2015年，种子发育发生在降雨，寒冷时间和日照较低的条件下，形成了更大的种子，有利于脱落酸的合成和积累，从而预计/缩短了种子的成熟期。结果突出了脱落酸和植物生长素之间的拮抗关系，后者是更快发芽的调节因子。结论，