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中国农学通报 ›› 2020, Vol. 36 ›› Issue (34): 110-116.doi: 10.11924/j.issn.1000-6850.casb20200100010

所属专题: 园艺 农业生态

• 植物保护·农药 • 上一篇    下一篇

不同辣椒材料对疫病的抗性研究

何烈干1(), 邹芬1, 胡铭2, 熊水平2, 马辉刚1()   

  1. 1江西省农业科学院植物保护研究所,南昌 330200
    2新建区种子管理站,南昌 330500
  • 收稿日期:2020-01-05 修回日期:2020-02-19 出版日期:2020-12-05 发布日期:2020-12-15
  • 通讯作者: 马辉刚
  • 作者简介:何烈干,男,1980年出生,湖南邵阳人,硕士,主要从事蔬菜病虫害方面的研究。通信地址:330200 江西省南昌市青云谱区 江西省农业科学院植物保护研究所,Tel:0791-87090561,E-mail: 344475416@qq.com
  • 基金资助:
    江西省蔬菜产业技术体系资助项目“蔬菜病虫害防治岗”(JXARS-06);江西省现代农业科研协同创新专项“蔬菜主要病害绿色防控及农药减量技术研究”(JXXTCX201901-03)

Resistance of Pepper Cultivars to Phytophthora capsici

He Liegan1(), Zou Fen1, Hu Ming2, Xiong Shuiping2, Ma Huigang1()   

  1. 1Plant Protection Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200
    2Xinjian Seed Administration Station, Nanchang 330500
  • Received:2020-01-05 Revised:2020-02-19 Online:2020-12-05 Published:2020-12-15
  • Contact: Ma Huigang

摘要:

为筛选抗性种质资源,进行抗性品种选育和推广种植,利用苗期游动孢子灌根法对206份江西省地方辣椒材料进行抗病性鉴定,并初步分析不同时期材料的发病情况。研究结果表明,不同材料间的抗病性存在较为明显的差异,无论是病株率还是病情指数均有显著差异性,病株率在0~30.0%、30.1%~70.0%、70.1%~100%之间的材料分别为21、32、153份,占供试材料的10.19%、15.53%、74.27%;表现为高抗、抗病、中抗和感病的材料分别有15、17、23、151份,占供试材料的7.28%、8.25%、11.17%和73.30%;鉴定出的‘赣椒18号’、‘赣椒35号’、C047、WY38、CM334和A204等15份高抗材料是很好的抗疫病资源。分析供试材料在2次调查结果中的发病情况可知,材料间的发病速度(侵入和扩展)存在显著差异性。

关键词: 辣椒, 疫霉菌, 病情指数, 抗性, 鉴定

Abstract:

To screen resistant germplasm resources for the selection and promotion of resistant pepper cultivars, the resistance of 206 local pepper cultivars in Jiangxi was identified by drenching them with zoosperm, and the differences of resistance in different periods were preliminarily analyzed. The results showed that both the disease rate and disease index varied widely among different materials. There were 21, 32 and 153 materials with the disease rate of 0-30.0%, 30.1%-70.0% and 70.1%-100%, respectively, accounting for 10.19%, 15.53% and 74.27% of the tested materials. There were 15, 17, 23 and 151 cultivars with high resistance, resistance, moderate resistance and susceptibility, respectively, accounting for 7.28%, 8.25%, 11.17% and 73.30% of the tested materials. 15 materials, such as ‘Ganjiao 18’, ‘Ganjiao 35’, C047, WY38, CM334, A204 and so on, were identified with high resistance. According to the analysis of the incidence, there was a significant difference of the incidence rate (invasion and spread) among the materials.

Key words: pepper, Phytophthora capsici, disease index, resistance, identify

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