New York State Agricultural Experiment Station, Cornell University, Geneva, New York 14456.
Plant Physiol. 1977 Oct;60(4):575-7. doi: 10.1104/pp.60.4.575.
The seeds of lettuce (Lactuca sativa L. cv. Grand Rapids) germinate in darkness at 25 C when treated by gibberellic acid (GA(3)) for 1 hour following 2 hours of imbibition. The time of GA(3) application influences the rate and the final percentage of seeds that germinate. In contrast, red light illumination given at different times affects only the rate and not the final germination percentage. The early process(es) of germination initiated by GA(3) or light treatment can be arrested by subjecting the treated seeds to a nongerminative temperature of 35 C. The results suggest differences in the mode of action of light and GA(3) during germination. They indicate that different kinds of processes are involved in the biochemical control of germination.
生菜（Lactuca sativa L. cv. Grand Rapids）种子在黑暗中，25°C 下，用赤霉素（GA(3)）处理 1 小时，再吸水 2 小时后萌发。GA(3)处理时间影响萌发的速度和最终萌发率。相比之下，红光在不同时间的照射仅影响萌发速度，而不影响最终萌发率。GA(3)或光照处理引发的萌发早期过程可以通过将处理后的种子置于非萌发温度 35°C 下而被阻止。结果表明，光和 GA(3)在萌发过程中的作用方式不同。这表明在萌发的生化控制中涉及不同类型的过程。
