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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (16): 172-175.

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

豇豆茎基腐烂病病原鉴定及其生物学特性

毛勇 谭志琼 阮云泽 张荣意   

  • 收稿日期:2010-12-22 修回日期:2011-02-17 出版日期:2011-07-05 发布日期:2011-07-05

Pathogen Identification of Cowpea Foot Rot and Its Biological Characteristics

  • Received:2010-12-22 Revised:2011-02-17 Online:2011-07-05 Published:2011-07-05

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摘要：

豇豆茎基腐烂病是浙江省温州市鹿城区豇豆的一种严重病害，致病菌通过培养性状和形态特征的测定，被鉴定为瓜果腐霉（Pythium aphanidermatum (Eds.) Fitzp.）。这一鉴定结果为国内首次报道。菌丝在紫外照射2 h后全黑暗22 h生长速度最快；最适生长温度为33~38℃；最适培养基是PDA；最适pH是6~7；最适的碳源、氮源分别是淀粉、磷酸氢二铵。

关键词: 灰色关联分析, 灰色关联分析, 最劣关联度, 玉米

Abstract:

Cowpea foot rot is a serious disease in Wenzhou, Zhejiang province. Its pathogen was Pythium aphanidermatum (Eds.) Fitzp. based on cultivation traits and morphological characteristics. The result of pathogen identification was first reported in China. The optimum Illumination for the growth of the mycelium was 22 h full dark after 2 h ultraviolet irradiation. The optimum temperature and pH were 33~38℃ and 6~7 respectively. The optimal medium was PDA. The optimal carbon source and nitrogen source were starch and (NH4)2HPO4 respectively.