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在20世纪80年代抗病育种的基础上,从1994-2003年采用人工辅助接种、自然发病的方法对12151份次水稻材料在病圃中的稻瘟病抗性进行了监测。结果表明,10年共计有4933份次叶瘟表现抗病,7103份次表现为感病,分别占总份次的40.60％和58.46％;有4071份次颈瘟表现抗病,7965份次表现为感病,分别占总份次的33.50％和65.55％。有9034份次的材料叶瘟颈瘟表现一致,占总份次的74.35％,其中叶瘟感病颈瘟也感病的材料份次是叶瘟抗病颈瘟也抗病材料的两倍;叶瘟颈瘟表现不一致的材料有3002份次,占总份次的24.71％,其中叶瘟感病而颈瘟抗病的材料份次多于叶瘟抗病而颈瘟感病的材料份次。利用早期筛选的抗源,选育了抗病优良籼型杂交稻恢复系6326、蜀恢162、蜀恢527等。对稻瘟病抗病育种和抗病品种的合理利用等问题也进行了讨论。
Based on the disease-resistant breeding in the 1980s, the resistance of 12,151 sub-rice materials in the nursery was monitored by artificial inoculation and natural disease from 1994 to 2003. The results showed that there were 4933 secondary leaf blast resistant disease in 10 years and 7103 secondary disease were susceptible, accounting for 40.60% and 58.46% of the total; 4071 secondary neck blast disease resistance and 7965 secondary performance As a result, they accounted for 33.50% and 65.55% of the total respectively. There were 9,034 copies of leaf blast plaque, which accounted for 74.35% of the total number of plaques. Leaf plague susceptible plaque also had twice as many susceptible pieces as leaf blast plague-resistant nematodes and disease-resistant materials. The results showed that there were 3002 inconsistent materials for blast-susceptible neck and blast disease, accounting for 24.71% of the total, of which the susceptible strain of leaf blast and the susceptible strain of neck-blast were more resistant to leaf blast than the susceptible strain of neck blast . Utilizing the early screening resistant sources, the restorer line 6326, Shuhui 162, Shuhui 527 of indica hybrid rice with excellent resistance were selected. The blast disease resistance breeding and the rational use of resistant varieties and other issues were also discussed.