南方农业学报2017，Vol.48Issue(7)：1216-1219,4.DOI:10.3969/j.issn.2095-1191.2017.07.14
广西主要蔗区甘蔗宿根矮化病调查
Investigation on sugarcane ratoon stunting disease in main sugarcane areas of Guangxi
摘要
Abstract
[Objective]The occurrence of sugarcane ratoon stunting disease(RSD) in main sugarcane areas in Guangxi was investigated, and distribution, damage degree and occurrence regularity of RSD were studied to provide a scientific basis for healthy sugarcane seedling promotion and effective control of RSD. [Method]Samples were collected randomly from nine Guangxi main sugarcane areas from 2013 to 2014 and occurence of RSD was investigated. RSD test was conducted on the samples collected by PCR. Occurrence rate of RSD in Guangxi sugarcane areas was analyzed from perspectives of sugarcane area, variety, planting period and field type. [Result]RSD was detected in 198 sugarcane stem samples out of 278 ones, and the detection rate was 71.2%. RSD was detected in all nine main sugarcane areas, with positive detection rate being 58.3%-100.0%. RSD was detected in 27 collected sugarcane varieties(strains), in which the main variety ROC22 was seriously infected and its detection rate was 80.8%. RSD detection rate of new planting sugarcane was 36.0% while that of the ratoon cane was 75.7%. As ratoon years extended, RSD detection rate increased. The incidence of RSD in dry lands was 18.1% higher than in paddy fields(absolute value). [Conclusion]The occurrence of RSD is widespread and serious in Guangxi. In planting, virus-free seedlings by hot water should be promoted and resistant varieties with superior traits should be bred to cope with the problems.关键词
甘蔗/宿根矮化病/PCR/广西Key words
sugarcane/ratoon stunting disease(RSD)/PCR/Guangxi分类
农业科技引用本文复制引用
韦金菊,宋修鹏,黄伟华,覃振强,张荣华,刘璐,邓展云,李杨瑞..广西主要蔗区甘蔗宿根矮化病调查[J].南方农业学报,2017,48(7):1216-1219,4.基金项目
国家国际科技合作与交流专项项目(2013DFA31600) （2013DFA31600）
广西科学研究与技术开发计划项目(桂科能1347012-1) （桂科能1347012-1）
广西自然科学基金项目(2015jjBA30013) （2015jjBA30013）
广西农业科学院科技发展基金项目(2015JM09) （2015JM09）
