벼 低温發芽性의 效率的 檢定 條件

This study was carried out to determine the desirable screeing condition for low-temperature germinability of rice seeds. The germination test was performed with fifty rice varieties from three countries, mainly including the recent Korean rice cultivars. The analyzed result of germination test under three temperature conditions(13℃, 16℃, 25℃) pointed out that 11 days after seeding at 13℃ was the most efficient testing condition for low-temperature germinability in terms of mean and variation in germination rate. Highly significant correlations were observed between germination rates of 11 days after seeding at 13℃ and germination coefficients, average days of germination at 13℃ for 20 days. Low-temperature germinability were highly positively associated with days to heading or amylose content, but negatively correlated with grain width.