粳稻冠层性状遗传多样性及相关性分析

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中图分类号：S511.2+2文献标志码：A

文章编号：1673-6737（2025）05-0001-05

Analysis of Genetic Diversity and Correlation of Canopy Traits in Japonica Rice

LIU Zhong-zhuo’，ZHAO Yi-zhou1，ZHANG Li-lil* ，JIA Hui-ming²，XU Jing-jie³

（1 Liaoning Institute of Saline-Alkali Land Utilization， Panjin Liaoning 124O1o， China; 2 Jinzhou Urban Construction Service Center，Jinzhou Liaoning 121OO2，China; 3Jinzhou Agricultural Development（Group）Co.，Ltd. Jinzhou Jinqing Preferred Agricultural Products Co.，Ltd.， linzhou Liaoning，China）

Abstract：Sixtyjaponicaricevarietieswereusedasexperimentalmaterialstoanalyzethecanopytraitsof japonicarice varieties.Theresultsshowedthatthecoeffcientofvariationofcanopytraitsinjaponicaricevarietiesrangedfrom 12.22% to 108.30% ，and the Shannon-Wiener diversity index ranged from 1.328 to 2.06O.Most canopy traits hada largevariationrangeandahighdiversitylevel.Leaflengthfactor，leafanglefactor，leafwidthfactor，anddrooping factorwere themainfactorsafecting thecanopystructureof japonicarice.The 6O japonicaricevarietiescouldbe roughlydividedinto5groups，andthevarietiesineachgrouphadsignificant differences incanopystructure.At the sametime，there weresignificantor extremelysignificantcorelationsamong somecanopy traits.Thisprovidesabasis for varietyimprovement and trait selection.

KeyWords：Japonicarice;Canopytraits；Geneticdiversity；Principalcomponentanalysis；Clusteranalysis；Correlation analysis

作物产量的 90%～95% 来自光合作用形成的有机物质，群体光截获量和光能利用率是决定作物产量的重要因素。（剩余5517字）