4个宁夏枸杞品种叶片功能性状的测定与分析

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中图分类号：S567.19 文献标识码：A

Determination and Analysis of Leaf Functional Traits of Four Ningxia Wolfberry Cultivars

MA Zhongyan1，CAO Bingl1，2 * （1. Colege of Forestry and Prataculture，Ningxia University，Yinchuan Ningxia 75O021，China; .Ningxia Technical College of Wine and Desertification Prevention，Yinchuan Ningxia 75oo21，China）

Abstract：【Objective】Toexplore theadaptabilityof diferent cultivars ofNingxia wolfberr totheenvironmentand clarifythediffrences inleaffunctionaltraitsamong various varietiesunderthesamesiteconditions.【Methods】Thisexperiment usedfour maincultivarsofNingxia wolfberry（Ningqi1，Ningqi5，Ningqi7，andNingqiO）plantedintheexperimentalfarm of Ningxia Universityasexperimentalmaterials.Themainfunctionaltraitsoftheirleavesweremeasured，andthediferences inleaf orphologicalindicators，relativechlorophyllcontent，photosyntheticcharacteristics，andotherfunctionaltraitsamong diferentcultivars were analyzedandcompared.【Results】：TheresultsshowedthattheleaffunctionaltraitsofthefourcultivarsexhibitedsignificantdiferencesinmorphologicalandphotosyntheticcharacteristicsSpecificaly，leafthickness，leaf length，andrelativechlorophyllcontentshowedhighlysignificantdiferences；leafarea，leafdrymatercontent，andinstantaneous water useeficiency exhibited significant diferences；whereas leaf width，specificleaf area，transpirationrate，and photosynthetic rate did not show significant differences.Ningqi7and Ningqi1O had larger leaf thickness values（1 ⋅430mm and 0.916mm ，respectively），smaller specific leaf area values and 8637.93cm2⋅g-1 ，respectively），and higher leaf dry matter contents （0.231g⋅g-1 and 0.184g⋅g-1 ， respectively）. In contrast，Ningqi l and Ningqi 5 had smallerleaf thicknessvaluesandlargerspecificleafarea values.【Conclusion】Theexperimentalresults provideareferenceforthe variety selection and eficient cultivation of Ningxia wolfberry.

Keywords：Ningxia wolfberry；different cultivars；leaf functional traits

植物在长期的适应和进化过程中，形成了一系列能够反映其对外界环境变化响应的特征[1]，使其具有资源获取、利用、保留等一系列活动的关键属性，从而使植物生长策略能够通过单独或协同作用对环境变化做出响应，同时也反映了生态系统功能的变化[2]。（剩余6537字）