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以不同抗倒伏性的2个品种为材料,研究了化控技术对玉米植株抗倒伏性状、农艺性状及产量的影响。结果表明,化学调节剂能降低植株高度、穗位下部节间长度、穗高系数,节间直径、茎粗系数、干重、干物质百分比、单位茎长干物重、粗纤维含量、气生根和总根数显著增加。茎秆抗倒伏性状与农艺性状密切相关,化控处理降低了空秆率和秃尖长,提高了行粒数和穗粒重,最终提高了产量。化控处理对非抗倒伏品种郑单958的产量增加尤为明显。
Using two varieties with different lodging resistance as materials, the effects of chemical control technology on lodging resistance, agronomic traits and yield of maize plants were studied. The results showed that chemical regulators could reduce plant height, lower internode length of panicle, spike height coefficient, internode diameter, stem diameter coefficient, dry weight, dry matter percentage, dry weight per plant, crude fiber content, aerial root and The total number of roots increased significantly. The stem lodging resistance and agronomic traits are closely related to chemical control treatment to reduce the empty stalks and bald length, increase the number of rows and grains per spike, and ultimately increase the yield. Chemical control treatment of non-lodging varieties Zhengdan 958 yield increase is particularly evident.