Qualidade fisiológica de sementes de pimenta em fun??o da idade e do tempo de repouso pós-colheita dos frutos

摘要

An important aspect of seed production is the determination of physiological maturity and the appropriate time for harvest, with a view to obtaining high-quality seeds and minimising deterioration in the field. This research therefore aimed to study the influence of the stage of maturation and amount of post-harvest resting of the fruit on the physiological quality of the seeds of the pepper (Capsicum baccatum L.) var. Lady's Finger, to determine the right time for harvesting the seeds. The fruits were harvested at four stages of maturation, based on colouration: deep green (15 DAA), yellow-green (25 DAA), red-green (35 DAA) and deep red (45 DAA), and stored for 0, 5 and 10 days followed by extraction of the seeds. The weight, length, diameter and thickness of the pulp in the fruit were determined. Seed quality was evaluated by germination, germination first count, seedling emergence, moisture content, hundred-seed dry weight, thousand seed weight and electrical conductivity. Given the results, it is concluded that the physiological maturity of the seeds of the Lady's Finger pepper, is indicated by the intense red color of the fruits (45 DAA), and that post-harvest resting of the fruit for ten days improves the physiological potential of the seeds.