]*>","")" /> Study on the Effect of Different Density and Chemical Control on Production and Agronomic Charater of Corn

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Study on the Effect of Different Density and Chemical Control on Production and Agronomic Charater of Corn

  • Received:2006-06-25 Revised:2006-06-25 Online:2006-06-25 Published:2006-06-25

不同密度和化控量对制种玉米产量及农艺性状影响的研究

吴志勇;丁世斌;黄亚利;李春;叶新   

  1. 兵团农四师62团科技局,新疆霍城,835215

摘要: 采用不同密度和化控量双因子试验,对新疆玉米制种的产量、农艺性状进行了研究,结果表明:喷施玉米健壮素30 mL/667m2,可降低母本穗位高度10~20 cm,使叶片变短变窄,茎粗增加0.07~0.31 cm,空秆率减少0~10.5;,穗粒数增加4.4~10粒,千粒重变化不明显,从而改善了授粉条件,增加母本种植密度1 000~1 500株/667 m2,达到促进群体协调稳健生长,提高群体产量10;~31;,实现优质高产高效.