【摘要】 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。更多还原

【Abstract】 The role of BG90-2 in the breeding of Yangdao series was summarized.BG90-2,Yangdao series and some indica hybrid rice were inoculated with eighteen strains of Xanthomonas oryzae pv.oryzae from the Philippines and different regions in China with Yangdao 6 as restorer line.The results showed that BG90-2 has key function in the development of Yangdao series variety and its bacterial blight resistance was passed continuously on to all the tested varieties and combinations.Some strong pathogenicity strains(JSA06-8,JSA06-39,JSA06-41 and YNA37-8)were found,which will be useful to rice breeding for resistance to bacterial blight.更多还原