期刊文献+

成都地区10种园林灌木叶片结构与抗旱性关系研究 预览

Study on drought resistance and leaf structure in 10 species of garden shrubs in Chengdu
在线阅读 免费下载
分享 导出
摘要 利用石蜡切片法和指甲油印迹法,对成都地区10种常见园林灌木叶片解剖结构的13个指标:主脉厚度、叶片厚度、上下表皮角质层厚度、上下表皮厚度、栅栏组织厚度、海绵组织厚度、下表皮气孔密度、气孔长度、气孔宽度、叶片结构紧密度、栅栏组织与海绵组织厚度比(栅海比)进行测定和分析,再用方差分析和主成分分析法选取有代表性的指标,结合隶属函数法对物种间的抗旱性进行综合评价。结果显示,13个指标的变异系数为17.40%~68.20%,在10种园林灌木间差异极显著。10种植物都属于异面叶,组织结构易于辨识(三角梅的下表皮角质层太薄,无法测出数据)。叶片结构紧密度、栅海比、气孔密度、气孔长、气孔宽、栅栏组织厚度可作为评价这10种园林灌木抗旱性的重要指标。抗旱性由强到弱依次为:红花继木、鸭脚木、红叶石楠、栀子、西洋杜鹃、海桐、山茶、雀舌黄杨、三角梅和金边大叶黄杨。其中红花继木、鸭脚木、红叶石楠和栀子属于强抗旱品种,可用于屋顶、边坡等区域种植。 The leaf anatomical structure of 10 species of common garden shrubs in Chengdu were observed by paraffin sectioning and nail polish sealing.Indicators were measured and analyzed,which included thickness of main vein,thickness of leaf,cuticle thickness of upper epidermis,cuticle thickness of lower epidermis,thickness of upper epidermis,thickness of lower epidermis,thickness of palisade tissue,thickness of spongy tissue,stoma density of lower epidermis,stoma length,stoma width,and compactness and thickness ratio of palisade tissue to spongy tissue.Through variance and principal component analyses,representative indicators were selected,and drought resistance was evaluated among species by membership function.Results showed that the 13 indicators exhibited significant differences among the 10 garden shrubs,with variation coefficients ranging from 17.40%-68.20%.The 10 species belonged to bifacial leaves and their tissue structures were well recognized.The cuticle of the lower epidermis of Bougainvillea spectabilis Willd was too thin to obtain specific measurement data.Leaf structure compactness,ratio of palisade tissue to spongy tissue,stoma density,stoma length,stoma width,and thickness of palisade tissue were the main indices able to evaluate drought resistance of the 10 shrubs.Drought resistance in descending order was Loropetalum chinense var.rubrum Yieh,Schefflera octophylla(Lour.)Harms,Photinia fraseri Dress,Gardenia jasminoides Ellis,Rhododendron hybrida Hort.,Pittosporum tobira(Thunb.)Ait.,Camellia japonica L.,Buxus bodinieri Levl.,B.spectabilis Willd,Euonymus japonicus var.aureo-marginatus Hort.Furthermore,L.chinense var.rubrum Yieh,S.octophylla(Lour.)Harms,P.fraseri Dress,and G.jasminoides Ellis were strong drought resistant varieties and could be widely cultivated on roofs and slopes.
作者 范志霞 陈越悦 付荷玲 Fan Zhi-Xia;Chen Yue-Yue;Fu He-Ling(College of Landscape Architecture,Sichuan Agriculture University,Wenjiang,Sichuan 611130,China)
出处 《植物科学学报》 CAS CSCD 北大核心 2019年第1期70-78,共9页 Journal of Wuhan Botanical Research
基金 国家科技支撑计划项目(2013BAJ02B03)。
关键词 叶片结构 抗旱性 园林灌木 隶属函数 主成分分析 Leaf structure Drought resistance Garden shrubs Subordinate function Principle component analysis
作者简介 通讯作者:范志霞(1977-),女,博士,讲师,研究方向为园林植物抗旱性(E-mail: 46766243@qq.com)。
  • 相关文献

参考文献19

二级参考文献183

共引文献222

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈