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三、制种方法 1.利用自然交:把两个亲本品种或自交系隔行种植在一个隔离区内,利用其异花授粉习性获得杂交种子。试验结果,父母本采用棋盘式栽
Third, the method of seed production 1. The use of natural to pay: the two parents or inbred lines of two kinds of intercropping planted in a separate area, the use of its cross-pollination habits to obtain hybrid seed. The test results, the parents use the checkerboard planted