Six month storability of five soybean cultivars as influenced by stage of harvest, storage temperature and relative humidity
1997
Nkang, A. | Umoh, E.O. (Calabar Univ. (Nigeria). Department of Biological Sciences)
Seeds of five soybean (Glycine max (L.) Merrill) cultivars, newly introduced in the humid tropical regions of South Eastern Nigeria, were harvested at physiologic maturity (A), agronomic maturity (B), and two weeks after agronomic maturity (C) and examined for the effects of temperature and relative humidity on seed longevity. Germinability differed significantly after six months storage among the cultivars and the different storage temperatures (0, 25, 35, 45, and 55 deg C) and relative humidities (45, 55, 65, 75, and 84 %). Optimum storage conditions were found to be at temperatures of 25-30 deg C and relative humidities of 55-65 %. Harvesting at agronomic maturity gave the best quality seed lots for subsequent storage, as such seeds exhibited the highest germinabilities (83-90 %) after storage. Among the cultivars TG x 923-2E and SJ 239 exhibited significantly higher germinabilities and were less susceptible to thermal injury
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