沈阳农业大学学报2025，Vol.56Issue(2)：1-11,11.DOI:10.3969/j.issn.1000-1700.2025.02.001
设施栽培条件下不同生育阶段黄瓜表征对混合酚酸的响应阈值探究
Investigation of Response Thresholds of Cucumber Characteristics to Mixed Phenolic Acids During Different Growth Stages under Protected Cultivation Conditions
摘要
Abstract
[Objective]This study aims to investigate the allelopathic effects and threshold characteristics of phenolic acids on facility-grown cucumber at different growth stages by applying mixed phenolic acid substances exogenously,and to clarify the allelopathic response threshold and dynamic changes of mixed phenolic acids throughout the entire growth period of cucumber,providing a theoretical basis for agricultural production.[Methods]The experiment involved exogenously applying different concentrations of soil phenolic acid extraction solutions and mixed phenolic acid solutions,measuring cucumber plant height,stem diameter,whole plant biomass,and yield,and analyzing the concentration thresholds that inhibit cucumber growth across its entire growth period using the allelopathic effect sensitivity index(RI).[Results]Mixed phenolic acid solutions in the concentration range of 24-60,60-121,and 121-243 mg·kg⁻¹ significantly inhibited cucumber growth during the seedling,early flowering,and fruit setting stages,exhibiting a clear low-promotion high-suppression phenomenon.The allelopathic effects of phenolic acids mainly manifested as inhibition of cucumber dry matter accumulation and yield,especially during the fruit setting period,where concentrations above a certain threshold led to almost complete crop failure.Additionally,three-dimensional response surface analysis revealed that the allelopathic effects of phenolic acids are influenced by both concentration and growth stage,with the interaction between the two likely dominating the inhibitory effect as the growth stage advances.[Conclusion]This study provides an important theoretical basis for controlling the allelopathic effects of phenolic acids on facility-grown cucumber and helps optimize cultivation management,thereby improving production efficiency.关键词
酚酸类物质/设施黄瓜/化感效应/阈值/生育期Key words
phenolic acids/greenhouse cucumber/allelopathic effects/threshold/growth stage分类
农业科学引用本文复制引用
孙周平,张宏浩,刘鑫,杨四萍,赵翌博,富宏丹,余朝阁,刘玉凤,李天来..设施栽培条件下不同生育阶段黄瓜表征对混合酚酸的响应阈值探究[J].沈阳农业大学学报,2025,56(2):1-11,11.基金项目
辽宁省重点研发项目(2024JH2/102400031) （2024JH2/102400031）
国家大宗蔬菜产业技术体系项目(CARS-23) （CARS-23）
