摘要
随着云南省马铃薯种植面积的扩大和种薯调运的频繁,质量监管不足导致马铃薯疮痂病的发生日益严重。本研究旨在评估云南省马铃薯主栽品种对该病害的抗性水平,并筛选出具有潜在抗病性的育种材料。为此,本研究收集了33份不同的马铃薯品种(系)材料,并通过组织培养方法培育组培苗,进而采用盆栽试验进行抗性评估。同时结合对大田主栽品种田间发病情况的调查。结果显示,供试的33份马铃薯品种(系)的组培苗接种疮痂病菌后,所有测试品种均出现了不同程度的病害,发病率58%~96.67%,其中I-1085品种的发病率最低,F37-2品种的发病率最高。病情指数分布在22.58~67.27之间,以Fx3品种的病情指数最低,F37-2的最高。本研究结果为云南省马铃薯抗疮痂病品种选育工作提供了重要的基础性数据和理论支撑。
With the continuous expanding of planting area,frequent transportation of seed potatoes and inadequate quality supervision,the potato scab has been increasingly serious since potato staple food normalization.In order to clarify the resistance of potato cultivars(lines)to potato scab in Yunnan Province and screen out the breeding materials for resistance,this study collected 33 potato materials,conducted tissue culture,and evaluated the resistance by means of tissue culture potted seedlings.At the same time,the field incidence of potato cultivars was investigated.The results showed that after inoculation of scab pathogen on tissue culture seedlings of 33 tested potato varieties(lines),different degrees of scab disease occurred in all tested varieties.The incidence rate ranged from 58%to 96.67%.The lowest incidence rate was I-1085,and the highest incidence rate was F37-2;the disease index ranged from 22.58 to 67.27,with the lowest being Fx3 and the highest being F37-2.This study aims to preliminarily clarify the resistance level of the main potato varieties(lines)in Yunnan Province to potato scab,providing support for the breeding of potato varieties with resistance to potato scab in Yunnan Province.
作者
施贵芝
丰加文
徐亚锦
林知许
刘霞
SHI Guizhi;FENG Jiawen;XU Yajin;LIN Zhixu;LIU Xia(College of Plant Protection,Yunnan Agricultural University/Yunnan Provincial Key Lab of Plant Pathology,Kunming 650201;Kaiyuan Agricultural Technology Extension Center,Yunnan Province,Kaiyuan,Yunnan 661699;Agricultural and Rural Bureau of Malong District,Qujing City,Yunnan Province,Qujing,Yunanan 655199)
出处
《中国农学通报》
2024年第15期137-142,共6页
Chinese Agricultural Science Bulletin
基金
云南省农业基础研究联合专项“云南马铃薯疮痂病主要致病机制及其防控技术研发”(202301BD070001-063)
云南省教育厅基金项目“影响云南马铃薯疮痂病发生因素研究”(2021J0120)
云南省现代农业马铃薯产业技术体系(2023KJTX004)。
关键词
马铃薯疮痂病
品种抗性
抗性分析
组培苗
potato common scab
varietal resistance
resistance evaluation
plantlet
