摘要
用我区的稻瘟病菌株按苗期和成株期接种,鉴定宁夏地区的水稻主栽品种。结果表明:我区水稻主栽品种对来自我区不同地区的稻瘟病菌株具有不同的抗感反应,且苗期与成株期抗性反应不同。不同品种苗期抗菌率变异范围较广,且总体上抗性不强;成株期抗菌率均较低,表明我区水稻品种对穗颈瘟的抗性较弱。总体上来说,我区水稻品种对稻瘟病菌的抗性不强。
Main cultivated varieties of rice were inoculated with strains of Pyricularia oryzae Cav. of Ningxia in seedling period and adult period. The result showed that main cultivated varieties of rice have different reaction of resistance with different strains of P. oryzae from different area in seedling and adult period. The different variety have wide change in frequency of resistance and have not strong resistance in total. The frequency of resistance in adult fjeriod was very low. It showed that the rice variety in adult period have weak resistance. In total, Ningxia rice varieties have no strong resistance of rice blast.
出处
《宁夏农学院学报》
2003年第3期6-10,共5页
Journal of Ningxia Agricultural College
基金
自治区教育厅资助课题
关键词
水稻
稻瘟病
抗性鉴定
rice rice blast resistant identify
