杂交稻子一代的种植鉴定是目前检验杂交稻子一代种子纯度唯一的最可靠、最直观、最有效的手段 ,自从三系杂交稻问世以来一直是利用这一手段对三系杂交稻子一代纯度进行检验。两系杂交稻虽然减少了保持系这个环节 ,子一代含杂的概率降低 ,但子一代含杂是一个不变的事实。由于两 The identification of the hybrid rice generation is the most reliable, intuitive and effective method for testing the purity of the hybrid rice at present. Since the advent of three-line hybrid rice, the purity of the three-line hybrid rice has been tested. Although the two-line hybrid rice reduces the holding system in this aspect, the probability of substituting the seed generation is reduced, but the substituting generation is a constant fact. Because of two