彩色马铃薯资源的疮痂病抗性分析及药剂防效研究

四川农业大学学报 ›› 2020, Vol. 38 ›› Issue (06): 661-669.

彩色马铃薯资源的疮痂病抗性分析及药剂防效研究

邹雪¹, 丁凡^1,*, 李洪浩², 刘丽芳¹, 余韩开宗¹, 陈年伟¹

1.绵阳市农业科学研究院,四川绵阳 621023;
2.四川省农业科学院植物保护研究所,成都 610066

收稿日期:2020-05-06 出版日期:2020-12-28 发布日期:2021-02-05
作者简介:邹雪,博士,助理研究员。^*责任作者：丁凡,硕士,高级农艺师,主要从事薯类育种和栽培研究,E-mail：38862234@qq.com。
基金资助:
四川省科技厅公益性育种攻关项目（2016NYZ0032）; 国家现代农业产业技术体系四川薯类创新团队项目（sccxtd-2020-09）

Identification of Common Scab Resistance in Colorful Potato （Solanum tuberosum） Resources and Research on the Control Effect of Different Fungicides

ZOU Xue¹, DING Fan^1,*, LI Honghao², LIU Lifang¹, YU-HAN Kaizong¹, CHEN Nianwei¹

1. Mianyang Academy of Agricultural Sciences,Mianyang 621023,Sichuan,China;
2. Institute of Plant Protection,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China

Received:2020-05-06 Online:2020-12-28 Published:2021-02-05

摘要/Abstract

摘要： 【目的】为筛选高抗疮痂病的彩色马铃薯材料和有效防治方法。【方法】以带疮痂病菌的29份品种（系）的原原种为材料,田间种植并调查块茎发病率、病情指数,用隶属函数法综合评价材料的抗病性。用8种药剂对6份（高）感病材料的原原种作浸种处理,调查块茎发病情况,评价药剂防效。【结果】感病对照品种底西瑞的抗病性综合评价D 值0.24,发病率和病情指数分别为54.39%和30.70。筛选到2份高抗材料的D值分别为0.88和0.94。以D值聚类表明疮痂病抗性在杂交组合群体内的分布无明显规律,即不以遗传组合群聚类。同一药剂对不同材料的防效存在显著差异,化学药剂春雷·王铜的广适性最好,对6份材料的平均防效最高,达60.97%。【结论】鉴定到的高抗彩薯材料16-4-1、17-7-9,广适性药剂春雷·王铜将为培育高抗疮痂病彩色品种和药剂防治提供参考。

关键词: 彩色马铃薯, 疮痂病, 品种资源, 抗性鉴定, 防治效果

Abstract: 【Objective】 To screen some colorful potato lines with high resistance to scab and effective methods of preventing and controlling potato microscab disease. 【Method】 Using pre-basic seed tubers of 29 lines (variety) infected with scab as materials, the scab resistance study were comprehensively evaluated through the point of the incidence and disease index. 8 fungicides were used to soak pre-basic seed tubers of 6 (high) susceptible materials and evaluate the efficacy of fungicides by investigate the tuber disease. 【Result】 The resistance comprehensive evaluation D-value of the control variety Desiree was 0.24, and the incidence rate and disease index were 54.39% and 30.70 respectively. The D-values of two high resistance materials were 0.88 and 0.94 respectively. D-value clustering analysis showed that the distribution of scab resistance in the hybrid population had no obvious regularity and it was not clustered by the genetic combination group. There was significant difference in the control effect of the same agent on different materials. The chemical agent kasugamycin+basic cupric chloride had the best wide adaptability,with the highest average control effect of 60.97%. 【Conclusion】 The identified high resistance colorful materials 16-4-1, 17-7-9 and wide adaptability chemicals kasugamycin+basic cupric chloride will provide reference for breeding high resistance scab colorful varieties and chemical control.

Key words: colorful potato, scab, variety resource, resistance identification, control effect

中图分类号:

S532

邹雪, 丁凡, 李洪浩, 刘丽芳, 余韩开宗, 陈年伟. 彩色马铃薯资源的疮痂病抗性分析及药剂防效研究[J]. 四川农业大学学报, 2020, 38(06): 661-669.

ZOU Xue, DING Fan, LI Honghao, LIU Lifang, YU-HAN Kaizong, CHEN Nianwei. Identification of Common Scab Resistance in Colorful Potato （Solanum tuberosum） Resources and Research on the Control Effect of Different Fungicides[J]. Journal of Sichuan Agricultural University, 2020, 38(06): 661-669.

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