Post-harvest fruit rest and storage of Diospyros inconstans Jacq. seeds
2025
Laura Araujo Sanches | Aline Bueno Ramalho | Elisangela Clarete Camili
ABSTRACT: This work aimed at evaluating the effect of drying and slow rewetting of seeds obtained from fruits kept in post-harvest rest on the physiological quality of the seeds before and during storage. This research was divided into two parts: in experiment 1, seeds obtained from fruits that had rested for seven days after harvest were used, separated into three maturation stages based on the fruit color (COLOR1/7, COLOR2/7 and COLOR3/7), dried at 36, 15 and 11% water content. In experiment 2, COLOR3/7 seeds were used, dried at 11% water content and stored in plastic bags in a refrigerator (8 ± 1 oC), for 90, 210, 270 and 360 days. The following was evaluated: water content, germination, germination speed index, average germination time, seedling formation and dry mass of seeds and seedlings. The speed and intensity of seedling growth are negatively affected components when evaluated in seeds obtained from fruits collected with a green epicarp, even if they remained in post-harvest rest. However, these components are favored when the water content of the seeds is reduced and the seeds are slowly rewetted (seven days) or stored. The dry mass contents of the seeds desiccated at 36, 15 and 11% water content did not differ between the color stages. However, there were differences with regard to seedling development. The seeds from fruits that had rested for seven days, called COLOR3/7 and dried at 11%, presented storage capacity for 360 days.
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