稻曲病对水稻产量的影响及水稻新品种抗病性测定  

Effect of False Smut on Yield of Rice and Disease Resistance Detection of New Rice Varieties

作　　者：杨秀娟[1] 林廷邦[2] 阮宏椿[1] 石妞妞[1] 杜宜新[1] 甘林[1] 陈福如[1] 

机构地区：[1]福建省农业科学院植物保护研究所,福建福州350013 [2]福建农林大学植物保护学院,福建福州350002

出　　处：《热带作物学报》2013年第7期1309-1313,共5页Chinese Journal of Tropical Crops

基　　金：国家公益性行业(农业)科研专项资助项目(No.200903039-5);福建省科技厅公益类科研专项资助项目(No.2010R1026-3);福建省科技创新平台建设资项目(No.2009N2005)资助

摘　　要：在田间调查稻曲病病粒数对水稻秕谷率和产量损失率的影响,同时采用自然诱发方法测定62个水稻新品种对稻曲病的抗性。结果表明,单穗稻曲球病粒数的增加能引起水稻秕谷率和产量损失率的增加;当单穗病粒数在5粒以上时,引起产量损失率可达36%以上;62个水稻品种中表现中抗稻曲病的品种有7个,占供试品种数量的11.29%,表现中感稻曲病的品种有22个,感稻曲病的品种有33个,分别占35.48%和53.23%。Surveys were made on the effect of numbers of false smut ball on blighted grain rate and yield loss rate of rice in fields,and the resistance of 62 varieties against false smut was detected by using natural inducing methods.The results showed that increase of the numbers of false smut ball could increase obviously the blighted grain rate and yield loss rate.The loss rate could reach over 36%,when the numbers of false smut ball per panicle was over 5.The results also indicated that 7 in 62 varieties were moderate resistance,accounted for 11.29% of the numbers of tested varieties,22 varieties were middle susceptibility and 33 varieties were susceptibility,accounted for 35.48% and 53.23% respectively.

关 键 词：水稻 稻曲病 产量损失 抗性测定 

分 类 号：S435.111.46[农业科学—农业昆虫与害虫防治]