耕作与栽培2025，Vol.45Issue(5)：5-8,13,5.
机械镇压对小麦叶绿素含量、干物质转运和产量的影响
Effects of Mechanical Rolling on Chlorophyll Content,Dry Matter Translocation,and Yield of Wheat
摘要
Abstract
To clarify the effects of mechanical rolling on chlorophyll content,dry matter translocation,and yield of winter wheat,a randomized block experiment was conducted using the cultivar Jimai22 under three treatments:no rolling(A0),roll-ing before winter(A1),and rolling before winter+at the reviving stage(A2).The study assessed flag leaf chlorophyll content,dry matter accumulation and translocation,and yield components.The results showed that compared with A0,A1 significantly increased spike number per unit area and grains per spike,while additional rolling(A2)synergistically improved 1000-grain rate to spikes at flowering and maturity stages,and promoted translocation amount and rate of pre-anthesis stored dry matter weight.Rolling enhanced post-anthesis chlorophyll content in flag leaves,increased dry matter accumulation and allocation from vegetative organs to grains.Additionally,it improved post-anthesis dry matter accumulation and its contribution to grain yield,while reducing dry matter allocation to stems and leaves at maturity,resulting in a higher harvest index and ultimately greater yield.Compared with A0,A1 and A2 increased grain yield by 17.03%and 24.79%,respectively.Therefore,rolling be-fore winter+at the reviving stage(A2)is recommended as the optimal practice for winter wheat production.关键词
镇压/小麦/叶绿素/干物质Key words
compaction/wheat/chlorophyll/dry matter分类
农业科技引用本文复制引用
董秀春,王立春,刘光亚,李晶,韩伟..机械镇压对小麦叶绿素含量、干物质转运和产量的影响[J].耕作与栽培,2025,45(5):5-8,13,5.基金项目
国家重点研发计划课题(2019YFE0197100-03) （2019YFE0197100-03）
