四川银杏叶片表型差异研究  

Phenotypic Variation of Ginkgo Leaves in Sichuan Native Land

作　　者：胡娉婷 严贤春[1] 罗建勋[2] 刘芙蓉[2] 杜阳平 HU Pingting;YAN Xianchun;LUO Jianxun;LIU Furong;DU Yangping(College of Life Sciences,China West Normal University,Nanchong 637000,China;Sichuan Academy of Forestry Sciences,Chengdu 610081,China)

机构地区：[1]西华师范大学生命科学学院,四川南充637000 [2]四川省林业科学研究院,四川成都610081

出　　处：《四川林业科技》2020年第3期64-70,共7页Journal of Sichuan Forestry Science and Technology

基　　金：四川乡土叶用型银杏不同种源亲代经济性状综合评价及优异种质资源收集保存研究(2018CZZX28);西华师范大学英才科研基金项目(17YC353)。

摘　　要：银杏作为孑遗植物,在四川栽培历史较长,分析其叶片表型特征差异,可为银杏优良种质资源选择提供材料和参考。通过对四川优良单株银杏进行调查,分析大邑县、名山区、成都市区、万源市、大竹县等14个种源的银杏叶片的表型性状差异性。结果表明:银杏不同种源间单叶重量、叶片厚度的差异均达到极显著水平,其中青川县表现较好,单叶重量和叶片厚度均显著高于其他种源,成都市区种源表现较差;单位枝条上的叶片数量和叶片重量均达到极显著水平(P<0.01),其中五通桥区种源表现较好,名山区表现较差;在叶柄长度,叶片长度和宽度以及叶面积的测定结果表明,万源市种源的表现最好,成都市区种源表现最差。Ginkgo biloba,as a relic plant,has a long history of cultivation in Sichuan.Analysis the differences in leaf phenotypic characteristics can provide materials and references for the selection of excellent germplasm resources of Ginkgo biloba.The phenotypic characteristics of Ginkgo biloba leaves from 14 provenances including Dayi County,Mingshan District,Chengdu City,Wanyuan City,and Dazhu County were analyzed through investigation of superior individual ginkgo biloba in Sichuan Province.The results showed that the differences in single leaf weight and leaf thickness among different provenances of G.biloba reached extremely significant level,with Qingchuan County performing better.Single leaf weight and leaf thickness were significantly higher than other provenances,and the provenance in Chengdu city performed worse.The number of leaves and the weight of the leaves on each branch reached extremely significant level(P<0.01),among which the provenance of Wutong Bridge was better than that of Mingshan District.The results of the determination of petiole length,leaf length and width,and leaf area showed that the provenance of Wanyuan City was the best and that of Chengdu City was the worst.

关 键 词：四川 叶用银杏 种源 叶片表型性状 

分 类 号：S792.95[农业科学—林木遗传育种]