草地学报2026，Vol.34Issue(8)：3103-3112,10.DOI:10.11733/j.issn.1007-0435.2026.08.032
褪黑素对荫蔽环境下燕麦生理生化特性的影响
Effects of Melatonin on Physiological and Biochemical Characteristics of Oats in Shading Environment
摘要
Abstract
This experiment aimed to address the problem of growth inhibition of Avena sativa L.under shading and low light conditions between photovoltaic panels.Using'Kona'oats and plant regulator melatonin(MT)as materials,treatments,including a normal light control(CK-Z),a shading stress control(CK-F),and treat-ments with 20,40,60,80,and 100 mg·L-1melatonin(MT)sprayed under shade a pot experiment were con-ducted.The growth and physiological indicators at 30 and 50 days after emergence were measured,and the regulatory effect was evaluated by correlation analysis and membership function.Compared with CK-Z,CK-F significantly reduced oat stem thickness,dry weight,and antioxidant enzyme activity,while increasing plant height,fresh weight,and MDA(Malondialdehyde)content(P<0.05);Spraying MT could improve its growth physiological indicators,with a significant positive correlation between stem thickness and fresh weight,dry weight,etc.(P<0.01),a positive correlation between SOD(Superoxide dismutase)and plant height(r=0.075,P<0.05),and a negative correlation between MDA and dry weight;The membership function indi-cated that the comprehensive evaluation value(D=0.89)was the highest when treated with 80 mg·L-1 MT for 50 days.Exogenous MT enhanced the antioxidant system and alleviated shade stress.The optimal combina-tion of 80 mg·L-1 MT treatment for 50 days provided a solid theoretical basis for improving oat shade tolerance and grass cultivation in photovoltaic areas.关键词
燕麦/褪黑素/荫蔽条件/生理生化Key words
Oats/Melatonin/Shade conditions/Physiological and biochemical分类
农业科技引用本文复制引用
董博文,王怡然,曲善民..褪黑素对荫蔽环境下燕麦生理生化特性的影响[J].草地学报,2026,34(8):3103-3112,10.基金项目
大庆市新能源领域"揭榜挂帅"科技攻关项目(2021BD05) （2021BD05）
黑龙江省科技厅省院合作项目(YS16B12) （YS16B12）
黑龙江八一农垦大学学成引进人才科研启动计划项目(XDB202104)资助 （XDB202104）
