3-(2-吡啶基)丙醇系南开大学元素所根据国外资料新合成的一种生长调节剂,又名PGR-1,近年来国内曾在大豆、花生等油料作物上做了一些初步试验,认为效果良好.江苏农科院经济作物所在棉花上也做了一些盆栽试验,认为此药可以提高座铃率,并认为根外喷施以1000PPm效果较好. 本文报导大田药效情况,除进行田间调查外,还做了光合强度测定,试图探索能否将此药应用于田间生产. 3- (2-pyridyl) propanol Department of Nankai University, according to foreign sources of a newly synthesized growth regulator, also known as PGR-1, in China in recent years in soybeans, peanuts and other oil crops did some preliminary tests , That the effect is good.Jiangsu Academy of Agricultural Sciences, where the cash crop cotton also did some pot experiments that the drug can increase the ring rate, and that the root sprayed with 1000PPm better effect.This article reports the field efficacy, except Conduct field surveys, but also measured the photosynthetic capacity, trying to explore whether the drug can be applied to field production.