云南澜沧不同甘蔗品种植期宿根矮化病菌检测分析  

Detection and Analysis of Ratoon Stunting Disease of Different Sugarcane Varieties and Planting Periods in Lancang,Yunnan

作　　者：李茅苗 鲁宾 李婕 王晓燕[2] 王长秘 李文凤[2] 黄应昆 LI Maomiao;LU Bin;LI Jie;WANG Xiaoyan;WANG Changmi;LI Wenfeng;HUANG Yingkun(Economic Crops Workstation of LancangLahu Autonomous County,Lancang,Yunnan 665600;Sugarcane Research Institute,Yunnan Province Academy of Agricultural Science,Yunnan Key Laboratory of Sugarcane Genetic Improvement,Kaiyuan,Yunnan 661699)

机构地区：[1]澜沧拉祜族自治县经济作物工作站,云南澜沧665600 [2]云南省农业科学院甘蔗研究所/云南省甘蔗遗传改良重点实验室,云南开远661699

出　　处：《甘蔗糖业》2023年第1期7-13,共7页Sugarcane and Canesugar

基　　金：财政部和农业农村部国家现代农业产业技术体系专项资金(CARS-170303);“云岭产业技术领军人才”培养项目“甘蔗有害生物防控”(2018LJRC56);云南省现代农业产业技术体系建设专项资金资助(YNGZTX-4-92)。

摘　　要：甘蔗宿根矮化病(Ratoon Stunting Disease,RSD)是严重影响蔗糖产业高质量发展的一种种传甘蔗病害。摸清不同甘蔗品种植期RSD的感染情况,是科学推广温水脱毒种苗,有效防控RSD的关键。本文对云南澜沧蔗区RSD的发生和分布进行了调查和田间采样,采用PCR法,对田间采集的124个样本进行RSD检测。结果表明:73个样本为阳性,阳性检出率58.87%,其中强阳性样品42个,占33.87%;15个主栽和主推品种均发病,发病率在28.57%~100%之间,以云引58号、粤糖82-882和德蔗09-84发病最重,发病率和强阳性率均高达100%,其次是粤糖93-159和粤糖00-236,发病率分别为90.00%和87.5%;植期上1~6年均不同程度发病,但无明显的规律性差异。本研究检测明确了澜沧蔗区不同品种植期RSD发生状况,为应用推广温水脱毒种苗、有效防控RSD提供了科学依据。Ratoon stunting disease(RSD)is a seed-borne sugarcane disease which seriously affects the high-quality development of sugar industry.Finding out the infection of RSD in different sugarcane varieties and planting periods is the key to scientifically popularize virus-free seedlings treated with hot-water and effectively control RSD.In this paper,the occurrence and distribution of RSD in sugarcane planting region of Lancang,Yunnan were investigated and sampled in the field,and 124 collected samples were detected by PCR.The results showed that 73 samples(58.87%out of 124)were RSD positive,of which 42 samples(33.87%out of 124)were strongly RSD positive.15 main cultivars and popularized varieties were all infected,with the incidence rate of RSD was between 28.57%~100%.Yunyin58,Yuetang82-882 and Dezhe09-84 were the most infected seriously,with the incidence rate and strongly positive rate reached 100%.Followed by Yuetang93-159 and Yuetang 00-236,with the incidence rates were 90.00%and 87.50%respectively.RSD occurred in different degrees from 1 to 6 years during the planting period,but there was no significant regular difference.The occurrence of RSD among different varieties and planting periods in Lancang sugarcane region was identified in this study,which provided a scientific basis for the application and popularization of virus-free seedlings treated with hot-water and effectively control of RSD.

关 键 词：云南澜沧 甘蔗宿根矮化病 发生 检测 

分 类 号：S566.1[农业科学—作物学]