自交系配合力的测定,通常先测定一般配合力。方法多用顶交法。即用一个品种或杂交种作测验种,如在早代测交,则用测验种作母本,用被测验材料作父本,一边自交,一边测交,并要成对编号,以便根据测交鉴定结果, Inbred line determination of the combining ability, usually first determine the general combining ability. Method of using more than the top method. That is to use a variety or hybrids as test species, such as measured in the early test, the test species as the female parent, the tested material as a male parent, while self-test, while measuring cross, and pairs of numbers, so that according to Test the results of the test,