拔节期喷施2,4-D丁酯对3个小麦品种农艺性状的影响  

Effects of 2,4-D Butylate Sprayed at the Jointing Stage on Agronomic Characters of Three Wheat Varieties

作　　者：樊翠芹[1] 王贵启[1] 李秉华[1] 许贤[1] 苏立军[1] 

机构地区：[1]河北省农林科学院粮油作物研究所,河北石家庄050031

出　　处：《河北农业科学》2009年第2期34-35,共2页Journal of Hebei Agricultural Sciences

基　　金：国家科技支撑重大项目(2006BAD08A09)

摘　　要：在小麦拔节期喷施浓度为270～1080g／hm^2的2，4-D丁酯乳油，研究其对3个小麦品种株高及农艺性状的影响。结果表明：2，4-D丁酯乳油对不同小麦品种的株高无显著影响，对穗数和千粒重影响不大，小麦穗粒数减少，产量降低，且减产幅度随用药剂量的增加而增大。小麦品种对2，4-D丁酯的敏感性顺序为石新733〉冀丰703〉冀5265。Effects of 2, 4-D butylate sprayed at the jointing stage on agronomic characters of three wheat varieties were studied. The results showed that 2, 4-D butylate had no significant effect on the plant height, and had little effect on the spike number and 1 000-grain weight. The grain number per spike reduced. The yield decreased, and the decreasing range became larger with the increase of the dosage of 2, 4-D. The sensibility to 2, 4-D butylate of wheat varieties was that Shixin 733 〉 Jifeng 703 〉 Ji 5265.

关 键 词：2 4-D丁酯 小麦 小麦品种 小麦产量 

分 类 号：S512.1[农业科学—作物学]