小麦高产化学调控技术的初步研究

A PREL IMINARY STUDY ON THE HIGH—YIELD CHEMICAL REGILATION TECHI IQUE IN WHEAT

应用正交设计法研究了MET、茂而多,481对小麦生长发育的影响及配合施用的增产效果。结果表明,苗期施用MET可降低株高,增加分蕊蘖,提高分蘖成穗率,具有增穗增产的作用;苗期施用茂而多可促进分蘖发生,增加分蘖数;而灌浆初期使用481能促进先合产物,运转,提高灌浆速度,减轻籽发育的优势效应,增粒增重。苗期喷施200ppmMET,灌浆初期喷施0.05ppm481对川麦22号具有显著的增产效果,该处理组合较同品种其它处理组合增产4.2～9.5％。

The effect of MET,MORGROW, 481 on the growth and development of wheat and the increasing yield effict of its application combined by foliage spray were studied by using the design with the table of orthogonal arrays. It could decrease plant geight,and increase the number of tillers adn the number of spikes per unit area,so as to increase yield appling MET at seedling stage. It could stimulate tilling,so as toy increase the number of tillers per unit area appling MIRGROW at seedling.stage. It could accel erate assimilate transiocation, and increase the rate of grain filling, and reduce the physililgical superiorities of grain development,so as to increase the number and weight of kernel appling 481 at filling beginnign stage It could significantly increase the kernel yield of chuanmai zz appiying 200 ppm MET at seedling stage adn O.05ppm 481 at filling beginming stage,the kernel yield of the treat combination was 4.2—9.5% higher than that of the other of the same variety.