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Effect of Exogenous Vanillin on Cucumber Seedling Growth and Soil Microorganisms(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年01
Page:
1-4
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Vanillin on Cucumber Seedling Growth and Soil Microorganisms
Author(s):
ZHOU Xin-gangWU Feng-zhi
(College of Horticulture,Northeast Agricultural University,Harbin,Heilongjiang 150030)
Keywords:
Keywords: Cucumis sativus L. Keywords: Cucumis sativus L. ' target='_blank'> FONT-SIZE: 10pt"> autotoxicity autotoxicity ' target='_blank'> FONT-SIZE: 10pt"> vanillin vanillin ' target='_blank'> FONT-SIZE: 10pt"> soil microorganisms' target='_blank'> FONT-SIZE: 10pt">soil microorganisms
PACS:
-
DOI:
10.11937/bfyy.201501001
Abstract:
Abstract:Phenolic compounds,which enter soil as a result of root exudation and residue decomposition,can directly and indirectly affect the growth of their own or other plants.However,the effect of phenolic compounds on soil microorganisms are still not clear.In the present study,taking Jinlyu No. 3 cucumber as material,the effect of exogenous vanillin at the concentration detected in a continuously monocropped cucumber system were investigated.The results showed that exogenous vanillin significantly affected cucumber seedling growth and soil microbial activity ( P <0. 01).In the Petri dish experiment,vanillin significantly inhibited cucumber radicle elongation at concentration of 0. 25 to 1. 00 mmol/L ( P <0. 05).In the soil,vanillin significantly inhibited cucumber plant height and leaf area at concentration of 0. 05 to 0. 20 μ mol/g soil ( P <0. 05).Meanwhile,all concentrations of vanillin applied (0. 02 to 0. 20 μ mol/g soil) significantly increased soil dehydrogenase activity and soil MBC content ( P <0. 05).Overall,the results showed that vanillin could inhibit cucumber seedling growth,and promote soil microbial activity and soil MBC content.

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Last Update: 2015-02-06