冠291自交不亲和系，是配制目前全国重点推广的品种鲁白1号、山东4号、山东6号、鲁白6号、丰抗70等的优良自交系，其配合力强，用途广，用量大，但制种产量低，制种难度大。为摸索其高产制种途径，我们根据冠291的特征特性，经过几年的试验，搞出了一整套亩产45kg的高产制种配 Guan 291 self-incompatibility is the preparation of the current national key varieties Lu Bai 1, Shandong 4, Shandong 6, Lu Bai 6, Feng anti-70 and other fine inbred lines, with strong combination, Wide range of uses, large amount, but low seed production, seed production difficult. To explore the ways of high-yielding seed production, according to the characteristics of the crown 291, after several years of testing, came up with a set of 45kg per mu yield of high-yielding with