土壤含水量对玉米产量因素的影响研究  

Study on the Effect of Soil Water Content to Yield in Corn

作　　者：李北齐[1] 吴坚 王贵强[1] 吴方勇 乔德辉[1] 

机构地区：[1]黑龙江大学农业资源与环境学院,哈尔滨150080 [2]黑龙江丰禾种业有限公司,黑龙江双城150100

出　　处：《中国农学通报》2009年第18期249-252,共4页Chinese Agricultural Science Bulletin

基　　金：哈尔滨市科学技术局科技攻关项目"特种玉米有机种植及Bt杀虫基因导入抗螟性研究"(2006AA6CN121)

摘　　要：研究了在旱作条件下不同玉米品种的穗长、穗粗,行粒数,百粒重等产量因素和667m2保苗株数、灌浆期土壤含水量等环境因素对产量的影响。通过在相同地块内种植不同的玉米品种,在干旱状况下测定土壤水分的利用率。分析结果表明:穗粗对产量有极显著的正相关和正向的直接效应,百粒重和穗长对产量呈微弱的正相关,行粒数对产量有微弱的负相关。土壤含水量与产量有较高的负相关和负向的直接效应,株高、功能叶数、667m2保苗与产量有较低的正相关。灌浆期比较抗旱品种是丰禾7号、绥玉7号和丰禾332品系;先玉335表现中度抗旱,龙单13、四单19表现出抗旱性较差。The effects of ear length, ear diameter, row number, 100-kernel weight, plant density and soil water content during filling to yield in different corn varieties were studied. These varieties were planted in one field and their water utility ability was measured. The result showed that ear diameter was very significantly positive correlated with yield and had positive direct effect to yield. 100-kernel weight and ear length were lightly positive correlated with yield and row number was lightly negative corralled with yield. Water content was highly negative correlated with yield and had negative direct effect to yield. Plant height, functional leaf number and plant density were positive correlated with yield. The varieties tolerant to dry during filling were Fenghe7, Suiyu7 and Fenghe332. Xianyu335 was medium and Longdan13 and Sidan19 were poor in tolerant to dry.

关 键 词：土壤含水量 玉米 产量 相关性 

分 类 号：S032[农业科学]