早熟玉米品种主要农艺性状与产量相关研究

Research on Relation between Main Agricultural Characters and Yield of Early-matured Maize Variety

运用相关及回归分析方法，研究了20个早熟玉米品种主要农艺性状与产量之间的关系，并利用回归方程估测备性状值的变化对产量的影响。结果表明，行粒数与产量关系最为密切，其次是株高、穗长。穗粗、穗位高、穗行数、千粒重对单产的提高效果不大。

The relation between yield and mian agricultural character of 20 early-matured maize varietieshas been investigated through relation and topical analysis. Yield influence by the change of every shapeand property has also been tested. Result shows that the number of line has a closest relationship withyield, then the height in the rows and ear length. Ear thickness, ear height, the number of ear line, andweight of 1000 grains have little influence on the rise of yield.