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Study on the Methods Promoting Conidia Formation of Valsa ambiens on Pear Tree(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年24期
Page:
133-135
Research Field:
Publishing date:

Info

Title:
Study on the Methods Promoting Conidia Formation of Valsa ambiens on Pear Tree
Author(s):
WU Xiang-qin; WU Ting-ting; YE Zhen-feng; LIU Pu; ZHU Li-wu
Key Laboratory of Pomology，Anhui Agricultural University，Hefei，Anhui 230036
Keywords:
pear canker; conidia; promote conidia formation
PACS:
S 661.2
DOI:
-
Abstract:
The formation condition of the conidia was evaluated using five kinds of substrates under the condition of different illumination cultivating.The results showed that the pycnidium producing time was shortened 3~5 days by sustained in UV light and the rate of maturity of pycnidium increased by 10%~20% under 25℃ temperature raised.Among them，the fungi produced a large number of black pycnidium cultured in 30% of the PBA medium under UV light after 15 days.Then the pycnidium extruded conidia threads after 10 days.The pycnidium producing time of the inoculated Puchengxue pear (Pyrus pyrifolia) twigs with V.ambiens was less 2~4 days than the Qiubai pear (P.bretschneideri) which was resistance to weak and the most number of pycnidiums and conidia were produced.

References:

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Last Update: 2014-12-08