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总结了水稻骨干亲本BG90-2在培育扬稻系列品种中的作用,并用来自菲律宾和中国的18个白叶枯病菌菌株对BG90-2和扬稻系列品种以及用扬稻6号为恢复系育成的部分杂交籼稻组合进行白叶枯病人工接种。结果表明,BG90-2在扬稻系列品种育成过程中起到关键性作用;骨干亲本BG90-2对白叶枯病的抗性在扬稻系列常规品种和用扬稻6号作为恢复系所配制的杂交籼稻组合中都获得传承;同时筛选出强致病性菌株JSA06-8、JSA06-39、JSA06-41和YNA37-8等。
The effect of BG90-2, a key parental line of rice, on the breeding of Yangdao series was summarized. Eighteen bacterial strains of Xanthomonas oryzae from the Philippines and China were used to breed BG90-2 and Yangdao series and Yangdao 6 as restorer line Part of indica hybrid combinations for artificial inoculation of bacterial blight. The results showed that BG90-2 played a key role in the breeding of Yangdao series. The resistance of the backbone parent BG90-2 to bacterial leaf blight was formulated in conventional Yangdan series and Yangdao 6 as restorer line Hybrid indica hybrid combinations have been inherited; at the same time screened strong-pathogenic strains JSA06-8, JSA06-39, JSA06-41 and YNA37-8 and so on.