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利用自交系作为选育雄性不育系、定向改变甜菜的遗传性、创造新类型的基础材料以及做为配制杂交优势品种的亲本,早已为国内外许多育种工作者采用。利用比较纯的、产量高的具有许多优良性状而且生产潜力大、一般配合力高、含糖率高并遗传效应好的自交系作为杂交制种亲本,则往往能选育出杂交优势强、后代生长整齐的优良杂交品种。 但是,在我们的实际工作中,并不是每个自交系都有利用价值。五年来我们共选育出120多个自交系,这些自交系都是经过3—5代人工强制自交,而且是不同来源、不
The use of inbred lines as breeding male sterility lines, directed changes in the genetic inheritance of beets, to create a new type of basic materials as well as the preparation of hybrid varieties of parents have long been adopted by many breeders at home and abroad. The use of more pure, high yield with many excellent traits and high potential for production, the general high combining ability, high sugar content and good genetic effect of inbred lines as crossbred parents, you can often bred a strong heterosis, Offspring grow good tidy hybrid varieties. However, in our practical work, not every inbred line has value. Over the past five years, we have bred a total of more than 120 inbred lines, these inbred lines are after 3-5 generations of artificial self-fertility, but also from different sources, not