湖南省水稻新品种稻曲病抗性鉴定研究

Study on the False Smut Resistance of New Rice Varieties in Hunan

2011年,在湖南安仁以自然诱发结合人工接种鉴定了158个湖南省水稻区试新品种(组合、系)对稻曲病的抗性。结果显示,中籼组的稻曲病抗性较弱,只有1个组合抗病;一季晚籼表现出较好的抗性,中抗的达65.2%;双季晚籼抗性弱,中感以上的达60%;优质稻抗性较弱,中感以上的占80.0%。因此,必须重视水稻品种对稻曲病的抗性遗传改良。

False smut resistance of 158 new rice varieties（combinations,lines） from Hunan rice regional trials was studied by natural infection and artificial inoculation. The results showed that middle indica resistance to false smut was weak, only 1 combination was resistant; late single - season indica resistance was better, middle resistant up to 65.2% ; late double - season indica resistance was also weak, above middle susceptible up to 60% ; high quality rice was susceptible, above middle susceptible up to 80. 0%. So, the genetic improvement of rice resistance to false smut should be paid much attention.