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目前几个生产上应用野败组合,因抗病力衰退,纯度下降等原因,导致种植面积有所下降。因此,不断选育新的高抗、高产,适应性广的组合,特别是利用我国丰富的稻种资源,选育出各种不同生态型的新质源杂交组合,是扩大水稻杂种优势利用的途径之一。我们从两个途径进行新质源的利用研究。野栽型不育系的转育: 近几年来,我们开始从事这方面的探讨,利用水稻新的一些品种,有野败恢复系如IR36、IR8608等与直野不育系测交,从
At present, several applications on the production of wild combinations, due to the decline of disease resistance, decreased purity and other reasons, resulting in decreased plantings. Therefore, it is necessary to continuously breed new combinations with high resistance, high yield and wide adaptability. Especially, using the abundant rice germplasm resources in our country, breeding new combinations of new quality and source of different ecotypes is to expand the use of heterosis in rice One of the ways. We study the use of new sources from two sources. In recent years, we began to engage in this aspect of the study, the use of some new varieties of rice, wild restore restorer lines such as IR36, IR8608 measured with the direct male sterile line from