3种槭属植物秋季叶色时序性变化规律  

Leaf Color Temporal Variation of Three Acer Species in Autumn

作　　者：李虹[1] 孙波[1] 曲彦婷[1] 张洪运[1] 杨轶华[1] LI Hong;SUN Bo;QU Yanting;ZHANG Hongyun;YANG Yihua(Institute of Nature and Ecology,Heilongjiang Academy of Sciences,Harbin 150040)

机构地区：[1]黑龙江省科学院自然与生态研究所,哈尔滨150040

出　　处：《中国农学通报》2023年第19期22-26,共5页Chinese Agricultural Science Bulletin

基　　金：黑龙江省科学院青年创新基金“紫花槭叶片呈色与色素含量关系的研究”(CXMS2022ZR01);黑龙江省省属科研院所科研业务费项目“东北槭叶色表达对光照和土壤水分的响应”(ZNQN2023ZR04);黑龙江省应用技术研究与开发计划项目“槭树类彩叶乡土树种育苗技术研究”(GA20B402-03);黑龙江省科学院双提雁阵特别计划项目“寒地特色园林植物种质资源创制与应用”(STYZ2022ZR01)。

摘　　要：为评价槭树秋季叶色的观赏性,以紫花槭、白牛槭、拧筋槭3种槭树叶片为试验材料,对其变色期的叶片形态特征、叶色时序性变化及叶色参数进行观测和分析。结果表明,3种槭树的叶片形态特征(叶长、叶宽、叶片长/宽、叶周长、叶面积)存在显著差异。白牛槭和拧筋槭的叶片形态相似;拧筋槭的叶面积最大,紫花槭最小。叶片周长由大到小为白牛槭>紫花槭>拧筋槭。3种槭树进入观赏期的时间为9月末—10月末。拧筋槭的观赏期最长;白牛槭秋季叶色变化最为丰富,最具观赏性。叶色参数L*和b*都呈现出先升高后降低的变化趋势,叶色参数a*呈现出逐渐上升的变化趋势,与叶色的变化一致。The paper aims to evaluate the ornamental value of Acer leaf color in autumn,the Acer pseudosieboldianum,A.triflorum and A.mandshuricum leaves were chose as the experimental materials to observe and analyze the leaf morphological characteristics,leaf color temporal changes and leaf color parameters during the discoloration period.The results showed that there were significant differences in leaf morphological characteristics(leaf length,leaf width,leaf length/width,leaf circumference and leaf area)among the three Acer species.The leaf morphology of A.mandshuricum and A.triflorum was similar.The leaf area of A.triflorum was the largest,and that of A.pseudo-sieboldianum was the smallest.The leaf circumference from large to small was:A.mandshuricum>A.pseudo-sieboldianum>A.triflorum.The ornamental period of the three Acer species was from the end of September to the end of October,and A.triflorum had the longest ornamental period.A.mandshuricum had the richest changes in leaf color in autumn and the most ornamental.The leaf color parameters L*and b*both showed a trend of increasing first and then decreasing,while the leaf color parameter a*showed a trend of increasing gradually,which was consistent with the change of leaf color.

关 键 词：槭属 变色期 形态特征 时序性变化 叶色参数 

分 类 号：S792.35[农业科学—林木遗传育种]