[1]姜野,潘凯.棕榈酸对西瓜枯萎病及土壤生化性状的影响[J].北方园艺,2018,42(01):7-13.[doi:10.11937/bfyy.20172344]
　JIANG Ye,PAN Kai.Effects of Palmitic Acid on Watermelon Fusarium Wilt and Soil Biochemical Properties[J].Northern Horticulture,2018,42(01):7-13.[doi:10.11937/bfyy.20172344]
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棕榈酸对西瓜枯萎病及土壤生化性状的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷 期数: 2018年01 页码: 7-13 栏目: 出版日期: 2018-01-10
Title:
Effects of Palmitic Acid on Watermelon Fusarium Wilt and Soil Biochemical Properties
作者:
姜野; 潘凯
东北农业大学 园艺园林学院，黑龙江 哈尔滨 150030
Author(s):
JIANG Ye; PAN Kai
College of Horticulture and Landscape Architecture,Northeast Agricultural University,Harbin,Heilongjiang 150030
关键词:
棕榈酸; 土壤化学性状; 土壤酶; 西瓜枯萎病
Keywords:
palmitic acid; soil chemical properties; soil enzyme; watermelon Fusarium wilt
DOI:
10.11937/bfyy.20172344
文献标志码:
A
摘要:
选取设施西瓜连作土壤，以西瓜品种“翠玉”为试材，采用盆栽试验，研究不同浓度的外源棕榈酸对西瓜枯萎病发病率、土壤化学性状及土壤酶活性的影响。结果表明：随着棕榈酸浓度升高，西瓜枯萎病菌发病率逐渐降低。与0 mmol?kg-1棕榈酸（对照）相比，各浓度棕榈酸显著提高土壤脲酶和中性磷酸酶的活性，降低或显著降低了土壤蔗糖酶的活性；与对照相比，随着棕榈酸升高，土壤速效氮、速效钾含量和pH呈下降趋势；而土壤有效磷和有机质含量呈上升趋势。与对照相比，0.5 mmol?kg-1棕榈酸显著增加土壤有效磷含量。1.5 mmol?kg-1棕榈酸显著降低了土壤速效钾的含量。土壤碱解氮含量、脲酶活性与西瓜枯萎病发病率显著负相关。土壤速效钾含量、蔗糖酶活性与西瓜枯萎病发病率显著正相关。综上所述，不同浓度棕榈酸均在一定程度上影响土壤化学性状和土壤酶活性，降低了西瓜枯萎病发病率。
Abstract:
The aim of study was to explore effects of palmitic acid on disease incidence of watermelon Fusarium wilt,soil chemical properties,and soil enzymes,which was performed over pots experiment.The results showed that disease incidence of watermelon Fusarium wilt decreased gradually with concentration increasing of palmitic acid.Palmitic acid at all concentrations elevated activities of urease and neutral phosphatase,but reduced intervase activity.Soil available N,available K,and pH increased with concentration increasing of palmitic acid.Whereas available P and organic matter showed reverse trends.Palmitic acid at concentration of 0.5 mmol?kg-1 significantly increased available P.1.5 mmol?kg-1 palmitic acid significantly increased available K.Disease incidence of watermelon Fusarium wilt was positive related with available K and intervase activity,but negative related with available N and urease activity.Totally,palmitic acid influenced soil chemical properties and enzymes activities,especially controlled watermelon Fusarium wilt.

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备注/Memo

第一作者简介：姜野（1990-），男，硕士研究生，研究方向为设施园艺与蔬菜生理生态。E-mail:samjiang69@yahoo.com.

责任作者：潘凯（1974-），男，教授，博士生导师，研究方向为设施园艺与蔬菜生理生态。E-mail:mugonglin@aliyun.com.
基金项目：国家“十三五”重点研发计划资助项目（2016YFD0201004)。
收稿日期：2017-06-22

更新日期/Last Update: 2018-01-11