在杂交水稻制种中,因制种田在收获前常常受到连续阴雨天气的影响,使种子在成熟后期即产生不同程度的穗萌,轻的3％—5％,重的达15％以上。这不仅降低了种用价值,而且播种品质和耐藏性受到严重影响。为了解决这一问题,我公司从1996年开始在汕优63制种田进行了多效唑抑制穗萌效果试验。经过几年来的试验和推广,确认其抑制效果明显,现简述如下: In hybrid rice seed production, due to continuous rainy days, the genetically modified farming is often affected by continuous rainy days before harvest, causing the seeds to grow in varying degrees at the later stage of maturity, 3-5% lighter and 15% heavier. This not only reduces the use value, but the sowing quality and storability are seriously affected. In order to solve this problem, my company from 1996 to Shanyou 63 farming were paclobutrazol inhibition spike Meng effect test. After several years of testing and promotion to confirm its inhibitory effect is obvious, are summarized as follows: