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春繁再生制种是利用不育系收获后,残茬上潜伏芽萌发的再生分蘖取得的第二次收获,也叫直接留蔸再生或秧荪。我国在水稻利用直接留蔸再生已有1700多年的历史,利用水稻不育系再生的历史不很长,目前推广面积也不是很大。要进行杂交水稻繁殖制种的不育系再生利用,不仅要求有一定的种子产量,而且还要再生不育系的育性稳定、纯度可靠、杂种优势不减,才使再生制
Spring and reproductive breeding is the use of sterile lines after harvest, stubble on the residual germination of regenerated tillers to obtain the second harvest, also known as the direct retention of renewable or seedling sun. In our country, rice has been used for more than 1700 years since it was regenerated directly from rice. The history of regenerating rice sterile lines is not very long. At present, the area for its promotion is not large. To reproduce the hybrid rice breeding system of sterile lines of regeneration, not only requires a certain amount of seed yield, but also reproductive sterile lines of fertility and stability, purity, reliability, heterosis, only to reproductive