Dormancy studies in seed ofAvena fatua. 8. Genetic diversity affecting response to temperature

摘要

Experiments are reported which demonstrate the interaction of temperature with genotype in controlling germination in wild oats. In some pure lines germination of newly matured seeds occurs at all temperatures in the range 4ndash;32 deg;C. Other pure lines exhibit strong suppression of germination in the midportion of this temperature range. The possible adaptive significance of this dimorphism in nature is discussed.