经生物学接种鉴定了 38个水稻品种对水稻条纹病毒 ( RSV)的抗性 ,其中 2 9个分别为江苏、云南、辽宁、福建水稻种植区的主栽品种 .结果表明 ,除福建外 ,其他 3个水稻种植区的主栽品种都表现中感或高感 ,这可能是这 3个稻区病害发生严重的原因之一 .鉴定了 12个品种对 RSV介体灰飞虱的抗性 ,其中有 4个品种表现为抗虫 ,但抗性较低 .研究了 10个品种抗病性与抗虫性之间的关系 ,结果发现 ,4个品种对灰飞虱的抗虫性与其抗病性密切相关 ,相关系数为 99.19% ;而 6个品种的抗虫性与其抗病性的相关系数也达 82 .50 % .结果认为 ,许多水稻品种的抗虫性与其抗病性是紧密相关的 ,但有一些品种则不然 .籼稻品种一般较粳稻品种更具抗虫性 .这些结果说明许多品种的抗 RSV基因和抗灰飞虱基因可能是连锁的 .鉴定发现 ,IR36兼具高抗虫性和高抗病性 ,是抗性育种的良好材料 Thirty-eight rice varieties were identified as resistant to rice stripe virus (RSV) by inoculation, of which 29 were major cultivars in Jiangsu, Yunnan, Liaoning and Fujian rice paddies, respectively. The results showed that, except for Fujian, Among the three rice cultivars, the main cultivars showed medium or high susceptibility, which may be one of the reasons for the serious disease in the three rice regions.The resistance of 12 cultivars to the Laodelphax striatellus Four cultivars showed resistance to insects but low resistance.The relationship between disease resistance and insect resistance of 10 cultivars was studied and the results showed that the resistance of 4 cultivars to Laodelphax striatellus and their disease resistance And the correlation coefficient was 99.19% .The correlation coefficient of insect resistance and disease resistance of six cultivars was also 82.50% .The results showed that the resistance of many rice varieties was closely related to disease resistance, However, some varieties are not, indica rice varieties are generally more resistant to insect pests than the japonica rice varieties.These results indicate that many varieties of RSV genes and the resistance to Laodelphax striatellus may be linked.Image identification showed that IR36 has both high insect resistance High resistance, is a good material for resistance breeding