玉米杂交育种成败的重要因素之一,就是对亲本自交系的选择。在一般配合力的基础上,寻找特殊配合力高的自交系,才可育成高产杂交种。所以,如何准确测定、评价玉米自交系的配合力是十分重要的。由格列芬首创、许多研究者在应用中作了某些改进的双列杂交法,可同时测出自交系的一般配合力和特殊配合力两种效应,以明确的数字指标显示出自交系的配合力,是目前世界上测定 One of the important factors in the success or failure of maize hybrid breeding is the selection of the parents inbred lines. Based on the general combining ability, we can find out the inbred lines with high combining ability in order to breed high-yielding hybrids. Therefore, how to accurately determine and evaluate the combining ability of maize inbred lines is very important. Initially developed by Gleben, many researchers made some improvements in application of the double-line hybridization method, which can simultaneously detect the two kinds of effects of general combining ability and special combining ability of inbred lines, with self-cross Department of the combining power is measured in the world