ELECTRICAL CONDUCTIVITY CHANGES IN DETERIORATED SUNFLOWER SEEDS
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.
de PAULA, M., DARDER, M., TORRES, M. and MARTINEZ-HONDUVILLA, C.J. (1994). ELECTRICAL CONDUCTIVITY CHANGES IN DETERIORATED SUNFLOWER SEEDS. Acta Hortic. 362, 273-280