ISHS Acta Horticulturae 362: International Symposium on Agrotechnics and Storage of Vegetable and Ornamental Seeds
ELECTRICAL CONDUCTIVITY CHANGES IN DETERIORATED SUNFLOWER SEEDS |
| Authors: | M. de PAULA, M. DARDER, M. TORRES, C.J. MARTINEZ-HONDUVILLA |
| Abstract:
Changes in electrolyte leakage from Helianthus annuus L. cv. Peredovik seeds stored at high temperature (65 and 90°C) for 0, 1, 3, 7, and 14 days were analyzed. Storage at 90°C causes severe damage as evidenced by complete loss of viability and an increase of electrical conductivity (EC) values. However, storage at 65°C did not affect drastically to sunflower seeds. There was not correlation between germination capacity and EC measured at 0.5 V in seeds stored at 65°C during 14 days. When EC determinations were performed at 1 and 2 V, significative differences were detected. These differences are indicatives of an increase in the proportion of deteriorated seeds and are consistents with loss of membrane integrity. | |
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