杂交水稻新组合协优963的抗性研究

Study on resistance of a new indica hybrid rice, Xieyou 963

通过对稻瘟病、白叶枯病、黑条矮缩病和褐飞虱等４种浙江省水稻主要病虫害的抗性能力评价结果表明，认为协优９６３为高抗稻瘟病、中抗黑条矮缩病和成株期抗褐飞虱，对白叶枯病为感病，但比对照汕优１０号轻０．６～１.７个等级。协优９６３的高产与多抗的良好结合，使其成为一个具有广泛应用前景和重要推广价值的新组合。

The resistance of Xieyou 963 to rice blasts (Magnaporthe), Bacterial blight (Anthomonas oryzea Dowson), rice black-streaked dwarf disease and brown planthopper (Nilaparavata lugens Stal) was evaluated. It was shown that Xieyou 963 is high resistance to rice blast, medium resistance to rice black-streaked dwarf disease and resistance to brown planthopper in the adult stage of rice plants. Xieyou 963 was susceptible to bacterial blight, however, it was more durable to bacterial blight as compared with Shanyou 10(the control). The combination of multiple in Xieyou 963 would be high potential in tile rice impvovement.