矮壮素施用方式和灌溉水温对黄瓜幼苗徒长的调控研究  

Studies on Regulating and Controlling Excessive Growth of Cucumber Seedlings by CCC Applying Method and Irrigation Water Temperature

作　　者：桑嘉骏 季延海 刘明池[2,3] 武占会 王丽萍[1] 王素娜 SANG Jiajun;JI Yanhai;LIU Mingchi;WU Zhanhui;WANG Liping;WANG Suna(College of Landscape and Ecology,Hebei University of Engineering,Handan 056038,Hebei,China;Institute of Vegetable Science,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China;Key Laboratory of UrbanAgriculture of North China,Ministry of Agriculture and Rural Affairs,Beijing 100097,China)

机构地区：[1]河北工程大学园林与生态工程学院,河北邯郸056038 [2]北京市农林科学院蔬菜研究所,北京100097 [3]农业农村部华北都市农业重点实验室,北京100097

出　　处：《中国蔬菜》2022年第6期50-55,共6页China Vegetables

基　　金：财政部和农业农村部:国家现代农业产业技术体系资助项目(CARS-23-G-06);北京市农林科学院科技创新能力建设专项(KJCX20210437);河北省青年自然科学基金项目(C2019402330);国家重点研发计划资助项目(2019YFD1001901)。

摘　　要：以京研118黄瓜为试材,设定3个灌溉水温(10、15、22℃)和2种矮壮素施用方式(叶面喷施和随水灌溉)处理,研究了灌溉水温和矮壮素施用方式对黄瓜幼苗生长指标、壮苗指数和叶片叶绿素荧光参数的影响,探究黄瓜幼苗徒长调控技术。结果表明,不同矮壮素施用方式和灌溉水温处理均显著降低了黄瓜幼苗的株高,随水灌溉处理对壮苗指数的提升作用显著优于叶面喷施。在同一矮壮素施用方式下,降低灌溉水温能够在一定程度上抑制黄瓜幼苗徒长,但会降低叶片的SPAD值,并对叶片造成一定的损伤。综合分析,矮壮素浓度为200 mg·L^(-1)、随水灌溉、配合22℃灌溉水温处理能够有效抑制黄瓜幼苗徒长,且壮苗效果较好,是适宜的黄瓜壮苗调控措施。Taking‘Jingyan 118’cucumber as test material,this experiment set 3 irrigation water temperatures(10℃,15℃and 22℃)and 2 CCC applying methods(foliage spray and along with water irrigation);studied the effects of irrigation water temperature and CCC applying method on cucumber seedling growth,strong seedling index and chlorophyll fluorescence parameters of leaves;and explored the technology for regulating and controlling excessive growth of cucumber seedlings.The results showed that treatments with different CCC applying method and irrigation water temperature all could significantly reduce the plant height of cucumber seedlings.The strong seedling index in along with water irrigation treatments were higher than that of foliage spraying treatments.Under the same CCC applying method,reducing irrigation water temperature could inhibit cucumber seedlings excessive growth to certain degree.But it would reduce the SPAD value of leaves,and cause some damage to them.In a comprehensive analysis,the treatment combining 200 mg·L^(-1) CCC concentration,along with water irrigation,and 22℃irrigation water temperature can effectively inhibit the excessive growth of cucumber seedlings,and achieve the best strong seedlingeffect.This is a suitable regulating and controlling measure for strong cucumber seedlings.

关 键 词：矮壮素 叶面喷施 随水灌溉 灌溉水温 壮苗指数 

分 类 号：S642.2[农业科学—蔬菜学]