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选育抗稻瘟病恢复系是选育抗稻瘟病三系杂交水稻的主要途径之一。恩施州农科院利用自然生态优势建立稳定高效的稻瘟病自然诱发鉴定圃,在病圃中鉴定筛选稳定抗源,创造抗病中间材料,通过杂交、回交以及表型选择,改良优良恢复系的抗瘟性,育成了“恩恢”系列抗稻瘟病恢复系,进而育成了一批抗病杂交稻新组合通过各级农作物品种审定并在稻瘟病区大面积推广。介绍了恩施州农科院的主要抗稻瘟病恢复系及其所配抗病杂交稻组合,分析了抗稻瘟病恢复系选育中存在的主要问题,提出了相应对策。
Breeding of blast resistance restorer lines is one of the main ways to breed three-line hybrid rice resistant to blast disease. Enshi Prefecture Academy of Agricultural Sciences uses natural ecological advantages to establish a stable and efficient nature-induced identification of rice blast nursery garden in the identification of a stable source of resistance screening to create disease-resistant intermediate materials, through hybridization, backcrossing and phenotypic selection, improve the excellent restorer line Of the blast resistance, bred “En Hui ” series of blast resistance restorer lines, and then bred a new crop of disease-resistant hybrid rice varieties through the approval of all levels of crops and rice blast area large-scale promotion. The main restorer lines of resistance to rice blast and its hybrids with disease - resistant in Enshi Academy of Agricultural Sciences were introduced. The main problems existed in the selection of restorer line of blast resistance were analyzed, and corresponding countermeasures were put forward.