玉米自交系株型和产量性状的关系及其利用研究

Studies on Plant Shape and Yield Character Relation with Maize Inbred lines

以15个自交系为材料,按P(P-1)/2双列杂交设计,研究了株型和产量性状的遗传与相关。结果表明,近年育成的自交系,一般配合力有一定的改进,产量性状的一般配合力有明显的提高,各性状的一般配合力在亲本间存在显著差异。产量的一般配合力与单株叶数和穗粗的一般配合力存在极显著正相关。

With 15 inbred lines as materal according to P(P-1)/2 double cross design studying plant shape and constitute yield character heredity expressing and sieving good inbred lines. The results were as follows: inbred lines have mate clear in recent years. Same as combining abilities have a good made improve.(GCA)of yield character have made obriously raise. All traits combining abilites(GCA) existed notable in parent. (GCA) of yield single plant and (GCA) of thick ear of maize existed most notable straight interrelated.