Application rate of paclobutrazol (less than 540mg/L) at booting stages effectively prevented lodge and obtained the highest seed yield reached 806.3kg/hm2,35.8percent more than CK.

• 在孕穗初期喷施540mg/L多效唑有效地防止了倒伏；使得种子产量最高达到806.；3kg/hm2；比对照提高了35