Utilização do osmocondicionamento na melhoria da qualidade fisiológica de sementes de quiabo

The okra is a vegetable that has characteristics adaptable to hot climates, presenting problems in relation to the uniformity and percentage of seedling emergence, as regards the low temperatures, which have a high level of significance in the production and quality of the final product. The objective was to evaluate the effects of osmotic conditioning on germination and vigor in okra seeds subjected to accelerated aging. The factors studied were: 3 harvest positions in the okra plant (upper, median, basal), 3 accelerated aging times (dry, 48 and 96 hours) and 2 Priming controls (with and without). The experiment was in randomized blocks, in a 3x3x2 factorial scheme, 18 treatments and 4 replications. The variables studied were: moisture, germination, normal seedlings, dead seeds, tray emergency speed index (IVE) and imbibition curve. There is effect of harvest position, accelerated aging time and priming on the physiological quality of okra seeds. It was observed that the seeds independent of the harvest and priming position of 1.1 Mpa obtained higher averages in relation to the humidity. Regarding germination, it was noticed that the seeds without priming (dry), regardless of position and aging, stood out better than normal seedlings. A higher number of dead seeds was obtained when submitted to priming of 1.1 Mpa, regardless of aging and harvesting position. It was concluded that the seeds obtained better results when submitted to aging of 48h and 96h. There was no significant difference in the imbibition curve. The seeds of the basal position and aged for 48 hours and seeds of the apical position and aged for 96 hours were the best results obtained for the emergence variable.