论文部分内容阅读
穗芽指禾谷类作物收获前因天气久雨不晴,高温高湿诱发谷粒在穗上发芽。在我国,穗芽最常见于杂交水稻制种F1种子。在杂交稻种子生产过程中,种子乳熟期后因高温高湿天气诱发穗芽或发生早萌性生理变化而严重影响杂交稻的种子质量。根据调查,平均每年杂交稻种子质量因内部早萌性生理变化而导致的种子生活力下降的幅度在10%以上,因穗芽而减产10%～20%,严重的达50%以上,由此种子丧失再生产功能和商业价值。
Spike refers to the cereal crops Harvest before the rainy weather is not clear for a long time, high temperature and humidity induced grain sprouting on the sprout. Spike buds are most commonly found in F1 hybrids of hybrid rice in China. In the process of hybrid rice seed production, the seed quality of hybrid rice is severely affected by sprouts induced by high temperature and high humidity, or physiological changes of early adventitious buds after the ripening stage. According to the survey, the average seed quality per hectare of hybrid rice is reduced by 10% or more due to the physiological changes of early adventitious buds, 10% -20% due to spike buds, and seriously over 50% Loss of seed reproductive function and commercial value.