表面活性剂“粤辅1号”提高水稻植株对赤霉素的吸收和利用研究

Study on the Enhancement of Uptake and Utilization of GA3 in Rice Seedlings by Surfactant "Yue Fu No. 1"

与GA_3单独处理相比。GA_3与表面活性剂“粤辅1号”(YF-1)混合使用,可降低GA_3的表面张力及其受雨水冲刷程度,部分地溶解叶表面的硅质、蜡质和角质,使秧苗对GA_3的吸附量增加2～4倍,吸收量增加1～3倍;且能增加水稻幼苗的株高,增加不育系秆长,降低包颈程度。

Comparing with GA_3 treatment alone, the spraying of GA_3 combined with surfactant 'Yue Fu No. 1' (YF-1) upon rice seedlings could increase the seedlings height, enhance the adhesion and uptake of GA_3 in rice seedlings by 2 to 4 times and 1 to 3 times, respectively. The silicon, wax and cuticle in surface of leaves were partly dissolved by YF-1. Moreover, YF-1 had a function of rainfastness, which reduced the percentage of GA_3 to be washed away. The field test showed that application ofGA_3 plus YF-1 on sterile line of rice increased the length of stalk and decreased the extent of panicle enclosed in flag leaf sheath.