选用８个表现优良的自交系，对１５个组合Ｆ１的几个重要性状进行了配合力和应用潜力的分析。结果表明，各自交系在育种上应用潜力大小顺序是：合３４４、南５、四单１２１、大四１、南无名５、丰金、冬１０、冬９６。本试验所得穗长和穗位的遗传力较高ｈ２Ｎ分别是６８９４％、６３３３％，株高和百粒重的遗传力中等，ｈ２Ｎ分别是４６５７％、４２１５％，小区产量的狭义遗传力是６２４％。 Eight elite inbred lines were selected to analyze the combining ability and application potential of several important traits of 15 F1 combinations. The results showed that the order of application potential of each inbred line is: 344, South 5, 4 single 121, 4  1, South  unknown  5, Feng Jin, winter 10, winter 96. In this experiment, the higher heritability of ear length and ear position were h2N 6894% and 6333%, respectively. The heritability of plant height and 100-grain weight were medium, h2N 4657%, 4215% Community yield narrow sense of heritability is 6  24%.