新疆农业科学 ›› 2020, Vol. 57 ›› Issue (12): 2310-2317.DOI: 10.6048/j.issn.1001-4330.2020.12.017

• 园艺特产·贮藏保鲜加工·植物保护 • 上一篇    下一篇

种薯/土壤带菌对马铃薯生长及其干腐病发生的影响

郭成瑾1, 杨波2, 王喜刚1, 沈瑞清1   

  1. 1.宁夏农林科学院植物保护研究所/宁夏植物病虫害防治重点实验室,银川 750002;
    2.宁夏农垦农林牧技术推广服务中心,银川 750021
  • 收稿日期:2020-09-14 出版日期:2020-12-20 发布日期:2020-12-24
  • 通信作者: 沈瑞清(1964-),男,甘肃武威人,研究员,博士,研究方向为植物病害防治,(E-mail)srqzh@sina.com
  • 作者简介:郭成瑾(1978-),女,陕西宝鸡人,副研究员,博士,研究方向为马铃薯病害防治,(E-mail)chj.guo@163.com
  • 基金资助:
    国家公益性行业(农业)科研专项(201503112+7);宁夏农林科学院全产业链创新示范项目(NKYZ16-0104);宁夏自然科学基金(2020AAC03316)

Effects of Seed Tuber and Soil Borne Inoculum on Potato Growth and Its Dry Rot Occurrence

GUO Chengjin1, YANG Bo2, WANG Xigang1, SHEN Ruiqing1   

  1. 1. Ningxia Key Laboratory of Plant Disease and Pest Control/ Institute of Plant Protection, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, China;
    2. Ningxia Agricultural Reclamation, Forestry and Animal Husbandry Technology Extension Service Center, Yinchuan 750021, China
  • Received:2020-09-14 Online:2020-12-20 Published:2020-12-24
  • Correspondence author: SHEN Ruiqing (1964-), mMale, Wuwei Gansu, Researcher, Ph.D, research direction for Plant Disease Control, (E-mail) srqzh@sina.com
  • Supported by:
    Supported by special Fund for Public Welfare Industry (Agriculture) Scientific R &D Program of MOARA, P. R. China (201503112+7); the Innovation Demonstration Project of Whole Industry Chain in Ningxia Academy of Agricultural and Forestry Sciences (NKYZ16-0104); Ningxia Natural Science Foundation (2020AAC03316)

摘要: 【目的】 研究侵染源对马铃薯生长及干腐病发生的影响,以及播前药剂拌种对马铃薯干腐病的防治效果,为宁夏马铃薯干腐病综合防控技术提供依据。【方法】 以种薯接菌和土壤接菌两种方式,并用杀菌剂进行种薯拌种或不拌种处理,通过田间试验,评价不同处理对马铃薯生长性状及其干腐病发生的影响。【结果】 种薯接菌和土壤接菌对马铃薯生长和干腐病的发生均具有影响,其中种薯接菌T1-1处理的出苗率为89.55%,株高为54.19 cm,低于其他处理,而子代薯块平均病薯数为8.95个,发病率为34.00%,病情指数为20.64,远高于其他处理;随着土壤接入菌源量的增加,马铃薯生长指标呈递减趋势,而干腐病发病呈递增趋势;种薯药剂拌种处理马铃薯生长指标均高于不拌种处理,其干腐病发病均低于不拌种处理。【结论】 种薯带菌是引起马铃薯干腐病发生的关键因素,药剂拌种可减少子代马铃薯干腐病的发生。

关键词: 马铃薯干腐病; 种薯带菌; 土壤带菌; 药剂拌种; 镰刀菌

Abstract: 【Objective】 To provide the basis for the comprehensive prevention and control technology of potato dry rot in Ningxia, the influence of infection source on the growth of potato and the occurrence of potato dry rot were studied, and the control effect of pre-sowing fungicide seed treatment on potato dry rot was studied. 【Method】 Two methods of seed tuber- and soil borne inoculums were used, and seed tube was treated with or without fungicides. The effects of different treatments on potato growth and potato dry rot were evaluated by field experiments. 【Result】 Seed tuber- and soil borne inoculums had an impact on potato growth and the occurrence of potato dry rot. The seedling emergence rate of seed tuber borne inoculum T1-1 treatment was 89.55%, and the plant height was 54.19 cm, which were lower than those of other treatments. The average number of diseased potatoes of progeny tubers treated with T1-1 was 8.95, the incidence rate was 34.00%, and the disease index was 20.64, which were much higher than those of other treatments. With the increase of soil borne inocula, the growth index of potato showed a decreasing trend, while the incidence of potato dry rot showed an increasing trend. The growth index of potato treated with fungicide seed dressing was higher than that without seed dressing, and the incidence of potato dry rot was lower than that without seed dressing. 【Conclusion】 Seed tuber borne inoculums is a key factor that causes the occurrence of potato dry rot. Seed dressing with fungicides could reduce the occurrence of potato dry rot.

Key words: potato dry rot; seed tuber borne inoculum; soil borne inoculum; seed dressing; Fusarium spp

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

出版单位:《新疆农业科学》编辑部
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