摘要
采用田间人工土壤埋接法,测定了18份玉米新组合对禾谷镰孢菌茎腐病的抗性。结果表明,玉米组合接种禾谷镰孢菌后,都有不同程度的茎腐病发生。经鉴定,抗性组合为2个,占鉴定组合总数的11.1%;中抗组合为4个,占22.2%;感病组合为2个,占11.1%;高感组合为10个,占55.6%,其中B36和B38的田间发病率为8.3%,对茎腐病达到抗性水平。分析比较各个组合未接种和接种的产量,B36和B38组合未接种时的产量分别为8 691.0和8 362.5 kg/hm2,接种后的产量分别为6 760.5和7 012.5 kg/hm2,是较好的抗茎腐病高产、稳产组合。
Resistance of 18 new maize combinations to stalk rot caused by Fusarium graminearum was investigated by artificial inoculation of soil in the field. The results showed that the occurrence of the stalk rot disease was various in different combinations after inoculated with the pathogen. Two combinations were resistant to stalk rot, accounting for 11.1% of the total combinations; 4 combinations showed moderate resistance, accounting for 22.2%; 2 combinations were susceptible, accounting for 11.1%; and10 combinations were highly susceptible, accounting for 55.6%. Among these combinations, the incidence for combination B36 and B38 was 8.3%, which reached resistance level against stalk rot. Simultaneously, the yield of 18 combinations under inoculated and non-inoculated conditions was analyzed, the yield of B36 and B38 under non-inoculated were 8 691.0 and 8 362.5 kg/hm^2, respectively; and 6 760.5 and 7 012.5 kg/hm^2 respectively under inoculated, which indicated combination B36 and B38 was resistant to stalk rot with stable and high yield.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2015年第1期67-70,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
安徽科技学院引进人才项目(ZRC2012326)
安徽科技学院青年基金项目(ZRC2013335)
关键词
玉米组合
茎腐病
禾谷镰孢菌
抗性鉴定
corn combination
stalk rot disease
Fusarium graminearum
resistance identification
作者简介
蒋鹏（1990-），男，安徽繁昌人，硕士研究生，主要从事玉米抗病性研究，whjiangpeng2013@163．com.
通信作者，王波，教授，从事玉米病虫草害研究，wb50999@163．com
