Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 2
Written by Nikolay PANAYOTOV, Dorota JADCHAK
The main goal of the present study was to identify the genotypic response of different pepper varieties to the accelerated seed aging test and to optimize the regimen for this test in pepper. The experiments were carried out with eight varieties of pepper with a different origin. The seeds were subjected to accelerated aging according to the International Seed Testing Association (ISTA) rules. The temperature of 35°C and 40°C and duration of aging from 24, 48 and 72 hours were investigated. The seeds after treatment were subjected to a standard germination test. Initial seed moisture, germination energy, germination, mean germination time and uniformity of germination, fresh and dry weight of one sprout, length of embryo root and hypocotyls were determined. Severe germination suppression was observed at 35°C for 72 hours and at 40°C for 24 hours depending on the variety. Speed and camaraderie have almost doubled at 40°C in 24 hours. The results were compared with non-aging seeds. The best physiological sensitivity was established at 40°C for 24 hours.
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