恶苗病对不同水稻品种产量的影响  

Effect of Bakanae on Yield of Different Rice Varieties

作　　者：李鹏[1] LI Peng(Institute of plant protection,Heilongjiang Academy of Land Reclamation Sciences,harbin150038,China)

机构地区：[1]黑龙江省农垦科学院植物保护研究所,哈尔滨150038

出　　处：《北方水稻》2023年第1期31-34,共4页North Rice

基　　金：黑龙江省农垦总局科技攻关项目(HNK135-02-13)。

摘　　要：选择了65个水稻品种,对恶苗病抗病性差异进行研究,选择了8个抗病性差异明显的水稻品种进行产量分析。结果表明,不同水稻品种在分蘖期和孕穗期恶苗病发生程度存在较大差异,有的品种不发生恶苗病,可作为恶苗病的抗病育种抗源材料。发病重的品种水稻产量损失严重,在防治上高抗品种可不使用药剂防治,发病重的品种必须使用药剂防治。In this paper,sixty-five rice varieties were selected.The results of field comparative test showed that the occurrence degree of bakanae in different rice varieties at tillering stage and booting stage was quite different,and even there were no bakanae varieties,which could be used as resistant breeding materials for bakanae.According to the above results last year,eight rice varieties were selected.The results of field comparison test showed that the occurrence degree of bakanae in different rice varieties at tillering stage and booting stage was quite different,and even there were no bakanae varieties.The yield loss of rice varieties that occurs seriously was serious.According to the loss of rice yield caused by bakanae,the principle of separate treatment can be adopted in the prevention and control of bakanae.High resistant varieties can not use fungicides,and susceptible varieties must use fungicides.

关 键 词：水稻 品种 恶苗病 产量 

分 类 号：S435.111.46[农业科学—农业昆虫与害虫防治] S511.037[农业科学—植物保护]