紫苏间作密度对辣椒疫病防控及生长的影响  

Effect of Perilla(Perilla frutescens)Intercropping Density on Controlling Pepper Blight(Phytophthora capsica)and Plant Growth

作　　者：陈映彤 张婧 李坤 吴凤芝 胡兆平 毛同艳[3] 于锡宏 蒋欣梅 CHEN Yingtong;ZHANG Jing;LI Kun;WU Fengzhi;HU Zhaoping;MAO Tongyan;YU Xihong;JIANG Xinmei(College of Horticulture and Forestry,Northeast Agriculture University,Key Laboratory for Northeast Region Horticulture Crop Biology and Germplasm Creation,Ministry of Agriculture and Rural Afairs,Harbin 150030,Heilongjiang,China;Yichun City Agricultural Comprehensive Service Center,Yichun 142800,Heilongjiang,China;Daqing City Agriculture Technology Extension Center,Daqing 163000,Heilongjiang,China)

机构地区：[1]东北农业大学园艺园林学院,农业农村部东北地区园艺作物生物学与种质创制重点实验室,黑龙江哈尔滨150030 [2]伊春市农业综合服务中心,黑龙江伊春142800 [3]大庆市农业技术推广中心,黑龙江大庆163000

出　　处：《中国蔬菜》2022年第4期77-83,共7页China Vegetables

基　　金：国家大宗蔬菜产业技术体系岗位专家项目(CARS-23-C10);黑龙江省现代农业产业技术协同创新体系项目(2019年);东北农业大学“高原学科”团队项目。

摘　　要：以辣椒单作为对照(CK),在高畦双行辣椒行间种植不同密度(株距20、40、60 cm)紫苏,研究紫苏不同间作密度对辣椒疫病发生及植株生长的影响,以探索一种安全有效的防治辣椒疫病的手段。结果表明:紫苏与辣椒合理间作可以有效防治辣椒疫病,辣椒叶片病情指数和发病率显著降低。随着紫苏间作密度的降低(即间作株距的加大),各处理群体冠层环境和土壤环境有所改善,辣椒叶片超氧化物歧化酶(SOD)、过氧化氢酶(POD)、多酚氧化酶(PPO)活性和叶绿素含量均升高,辣椒疫病病情指数和发病率均降低,辣椒植株生长势增强,产量提高,品质有所改善。其中,紫苏株距为60 cm的间作处理(Z3)效果最好,对辣椒疫病防治效果达到了78.23%,辣椒产量增加了53.8%,并显著提高辣椒果实可溶性蛋白质、可溶性糖及VC含量。Taking pepper monoculture as the contrast(CK),this experiment planted perilla between pepper ridge double lines with different densities(plant spacing 20,40,60 cm);studied the effects of different perilla intercropping densities on pepper blight occurrence and plant growth,so as to explore a safe and effective blight control measure.The results showed that rational perilla intercropping with pepper could effectively control pepper blight.And the disease index and incidence rate were significantly reduced.Along with the decrease of perilla intercropping density(i.e.intercropping plant space was increased),the population crown environment and soil environment of each treatment were improved.The activities of 3 enzymes SOD,POD,PPO and chlorophyll content were all increased.While,the pepper blight disease index and incidence rate were all reduced.The growth vigor of pepper plant was strengthened,yield and quality were improved.Among them,the intercropping treatment with 60 cm spacing of perilla(Z3)had the best effect.The control efficiency of pepper blight reached 78.23%.Pepper yield increased by 53.8%.Also the contents of soluble protein,soluble sugar and VC in fruit were significantly increased.

关 键 词：间作 紫苏 辣椒疫病 病害防控 生长 

分 类 号：S436.418.1[农业科学—农业昆虫与害虫防治]