超吨粮田中玉米植株性状与穗粒重的关系

对粮、粮、豆立体多熟种植超吨粮田生产中，玉米地上１－４节茎粗、棒三叶，穗位以上叶面积，棒三叶和穗位以上叶质重，株型和穗型指数等１５个性状因子与穗粒数和穗粒重之间的关系进行了相关和回归分析，结果表明，这１５个性状均与其穗粒数和穗粒重呈极显著正相关，其中计算了第４节茎粗，穗位叶，穗位以上叶面积，穗位以上叶质重和穗型指放大单位量级后的增产效果。与此同时，通过逐步回归建立了穗粒数和穗粒重的逐步回归模式，其

Relationship Between the Plant Characteristics and Grain Weight of Maize in the Over Ton-grain Farmland

This paper probed into the related and regressional analyses on the relationships among the 15 factors and grain number and grain weight per ear.The 15 characteristic factors include stem-diameter of 1-4 node in maize stalk,third leaf under ear,leaf area over ear,leaf blade weight per unit(mg/cm)of third leaves below ear and above ear, the indexes of plant type and ear type etc.All these factors have significant positive correlations with grain number and grain weight per ear.