Two inbred lines of maize, ZA5716 and ZA6192, with high combining ability and disease resistance, were obtained from a breeding population improved by recurrent selection.
从轮回选择法改良的玉米育种群体中，选育出了配合力高、抗病性强的玉米新自交系za5716和ZA6192。
Maize inbred line Ji853 from Huangzaosi groups was improved by Dan340, and selected excellent line cultivars Jin01 and Jin02 that with high combining ability and head smut-resistance.
利用丹340改良了黄早四类群玉米自交系吉853，育成配合力高、抗丝黑穗病的优良自交系津01和津02。
The difference of general combining ability effect among parents and special combining ability effect among combination and its variation range was high.
各品质性状的一般配合力效应、特殊配合力效应及其变异幅度均存在较大差异。
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