北方农业学报 ›› 2020, Vol. 48 ›› Issue (4): 94-99.doi: 10.12190/j.issn.2096-1197.2020.04.15

• 植物保护·草业 • 上一篇    下一篇

甘薯卷叶病毒对甘薯生长特性及产量的影响

张成玲, 孙厚俊, 杨冬静, 马居奎, 谢逸萍   

  1. 徐淮地区徐州农业科学研究所/农业农村部甘薯生物学与遗传育种重点实验室,江苏 徐州 221131
  • 收稿日期:2020-02-27 出版日期:2020-08-20 发布日期:2020-10-23
  • 通讯作者: 谢逸萍(1962—),女,研究员,学士,主要从事甘薯病虫害的研究工作。
  • 作者简介:张成玲(1983—),女,助理研究员,博士,主要从事甘薯病虫害的研究工作。
  • 基金资助:
    国家甘薯产业技术体系项目(CARS-10-B15); 国家重点研发计划项目(2018YFD1000703,2018YFD1000700); 徐州市科技计划项目(KC18129); 江苏省333人才项目(BRA201879)

Effects of leaf curl virus on growth characteristic and yield of sweet potato

ZHANG Chengling, SUN Houjun, YANG Dongjing, MA Jukui, XIE Yiping   

  1. Xuzhou Institute of Agricultural Sciences in Xuhuai Area/Key Laboratory of Biology and Genetic Improvement of Sweetpotato of Ministry of Agriculture and Rural Affairs,Xuzhou 221131,China
  • Received:2020-02-27 Online:2020-08-20 Published:2020-10-23

摘要: 【目的】 明确甘薯卷叶病毒对甘薯生长特性和产量影响,从而加强甘薯抗病资源高效利用。【方法】 利用田间小区试验方法,研究了病毒对不同甘薯品种致病性、生长特性及产量的影响。【结果】 甘薯卷叶病毒对所测试甘薯品种均有致病性,但引起症状的严重程度不同。其中,蜂蜜罐、济紫薯1号等品种叶片明显向上卷曲、黄化等,而龙薯9号、商薯19号等品种极少数植株表现卷曲。对不同品种造成的产量损失为4.93%~43.30%。甘薯卷叶病毒降低了郑红22和徐薯32两个品种叶绿素含量指数、叶面积、叶片鲜重,缩短蔓长,减少了郑红22的分枝数和叶片数;薯块鲜重在90、120 d,健康苗比病毒苗增加0.09~0.19 kg/株。【结论】 在甘薯卷叶病毒高发区可推广应用龙薯9号、商薯19及徐薯32等抗耐性品种。

关键词: 甘薯, 甘薯卷叶病毒, 生长特性, 产量

Abstract: 【Objective】 To clarify the effects of sweet potato leaf curl virus(SPLCV)on the growth characteristics and yield of sweet potato,so as to enhance the efficient utilization of disease-resistant resources of sweet potato.【Methods】 The effects of SPLCV on pathogenicity,growth characteristics and yield of different sweet potato cultivars were studied by using field plot test method.【Results】 SPLCV had pathogenicity to all tested sweet potato varieties,but the severity of symptoms was different.Among them,the leaves of honey pot,Jizhi No.1 and other varieties showed obvious upward curling and yellower,while the leaves of Longshu No.9 and Shangshu No.19 showed curling in very few plants.The yield loss of different varieties ranged from 4.93% to 43.30%.SPLCV reduced the chlorophyll content index,leaf area and leaf fresh weight of Zhenghong 22 and Xushu 32,shortened the vine length,and reduced the branch number and leaf number of Zhenghong 22.When the fresh weight of sweet potato pieces was 90 and 120 d,the healthy seedlings increased by 0.09-0.19 kg/plant compared with the virus seedlings.【Conclusion】 Longshu No.9,Shangshu No.19,Xushu 32 and other resistant varieties could be popularized and applied in the areas with high incidence of SPLCV.

Key words: Sweet potato, SPLCV, Growth characteristics, Yield

中图分类号: 

  • S435.31