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二甲四氯是一种激素型除草剖。据报导,杂交水稻不育系植株喷施低浓度的二甲四氯,能使剑叶披垂,穗轴与剑叶的角度增大,有利于提高结实率和粒重。1982年,我所杂交水稻春季制种田出现了花期不遇,我所试用二甲四氯进行调节,结果获得了一定程度的增产效果,现将这次初步试验的有关情况报告如下。试验实施经过1982年7月上旬,我所有一丘杂交水稻春季制种田,父母本花期不相遇,7月9日下午,我们用辽宁抚顺农药厂生产的72％二甲四氯粉剂配成0.1％浓度进行叶面喷施,10日
MCPA is a hormone-type herbicide profile. It has been reported that spraying low concentrations of MCPA on male sterile lines in hybrid rice plants can cause the flag leaf to drape, and increase the angle between the spinous leaves and the flag leaf, which is good for increasing the seed setting rate and grain weight. In 1982, the spring flowering of hybrid rice in our country had a florescence, and my trial of MCPA was used for adjustment. As a result, a certain degree of increase in yield was achieved. The relevant preliminary report is as follows. Test implementation After the first half of July 1982, all of one of my mound hybrid rice farming in spring, the parents of the flowering period does not meet, July 9 afternoon, we use Liaoning Fushun pesticide plant production of 72% dimethyl tetrachloride dubbed 0.1% Concentration foliar spray, 10 days