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高质量的一代杂交种,取决于高质量的原种,如自交不亲和系的纯度差或已退化,那么所配制的一代种子,在生产上也是不能利用的。大白菜自交不亲和系还有其花期自交不亲和的特性,按常规采种法几乎得不到种子。因此,要保质保量的繁殖好大白菜自交不亲和系原种,一般应按以下几个要点进行。 1.种株的培育 (1)小株采种法。如果原原种质量可靠的话,在山东一般采用此法。冬前11月建好阳畦,12
The high-quality generation of hybrids, depending on the high quality of the original species, such as self-incompatible lines of poor purity or have been degenerated, then the first-generation seed is formulated, can not be used in the production. Chinese cabbage self-incompatibility and its flowering self-incompatibility, according to the conventional method of planting almost no seeds. Therefore, to maintain the quality and quantity of breeding cabbage self-incompatible lines, the general should be based on the following points. 1. Strain cultivation (1) small seed collection method. If the original species of reliable quality, then generally use this method in Shandong. Pre-winter in November built Yang 畦, 12