春性小麦品种主要农艺性状与产量的相关及通径分析

（河南农业职业学院，河南中牟 451450）

The Correlation and Diameter Analysis no the Main Agronomic Characters and Output of the Vernal Wheat

The correlation and the diameter analysis to the main agronomic characters of the eight weak vernal wheat varieties which were demonstrated on the 2004-2005 national wheat variety exhibition was done, and the results to indicate the agronomic characters and the output relativity are in turn: number of ear in hm2 (0.8034), seed number of each ear (0.5492), weight of a thousand seeds(-0.4146), high(0.3366), ear of long(0.0639) and each ear of spike let number. The importance of the direct factors to the output are in turn: weight of a thousand seeds (1.5139), each ear of number of seeds (1.0816), ear of number in hm2 (1.0254), high (0.4358), each ear of spike let number (0.2968) and ear of long (-0.0274). It indicates that the agronomic characters have the obvious restricted relations. The strategy of the high production of the vernal wheat in Henan province and the technology of the high production cultivation are proposed.