4個(gè)寧夏枸杞品種葉片功能性狀的測定與分析

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中圖分類號：S567.19 文獻(xiàn)標(biāo)識碼：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

植物在長期的適應(yīng)和進(jìn)化過程中，形成了一系列能夠反映其對外界環(huán)境變化響應(yīng)的特征[1]，使其具有資源獲取、利用、保留等一系列活動(dòng)的關(guān)鍵屬性，從而使植物生長策略能夠通過單獨(dú)或協(xié)同作用對環(huán)境變化做出響應(yīng)，同時(shí)也反映了生態(tài)系統(tǒng)功能的變化[2]。（剩余6537字）