草地学报

草地学报 ›› 2023, Vol. 31 ›› Issue (7): 2096-2106.DOI: 10.11733/j.issn.1007-0435.2023.07.020

• 研究论文 • 上一篇    下一篇

遮荫对5种观赏草表型的影响及耐荫性评价

朱萱1,2, 高康2, 滕文军2, 蓝嘉华2,3, 张辉2, 范希峰2, 岳跃森2, 滕珂2, 温海峰2, 武菊英2, 丁国昌1   

  1. 1. 福建农林大学风景园林与艺术学院, 福建 福州 350002;
    2. 北京市农林科学院草业花卉与景观生态研究所农业农村部华北都市农业重点实验室, 北京 100097;
    3. 百色学院农业与食品工程学院, 广西 百色 533000
  • 收稿日期:2022-12-12 修回日期:2023-03-31 出版日期:2023-07-15 发布日期:2023-08-01
  • 通讯作者: 武菊英,wujuying@grass-env.com;丁国昌,E-mail:fjdgc@fafu.edu.cn
  • 作者简介:朱萱(2000-),女,汉族,江西吉安人,硕士研究生,主要从事观赏草研究,E-mail:1574395965@qq.com
  • 基金资助:
    科技部国家重点研发计划(2020YFF0305903);北京市农林科学院科技能力建设专项(KJCX20230119)资助

Effects of Shade on Phenotypes and Shade Tolerance Evaluation of Five Ornamental Grasses

ZHU Xuan1,2, GAO Kang2, TENG Wen-jun2, LAN Jia-hua2,3, ZHANG Hui2, FAN Xi-feng2, YUE Yue-sen2, TENG Ke2, WEN Hai-feng2, WU Ju-ying2, DING Guo-chang1   

  1. 1. College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, China;
    2. Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Urban Agriculture(North China), Ministry of Agriculture and Rural Affairs, Beijing 100097, China;
    3. College of Agricultural and Food Engineering, Baise College, Baise, Guangxi Province 533000, China
  • Received:2022-12-12 Revised:2023-03-31 Online:2023-07-15 Published:2023-08-01

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摘要： 为筛选出不同耐荫条件下的观赏草草种，本研究选择'蓝姬'柳枝稷(Panicum virgatum 'Lanji')、'五彩'狼尾草(Pennisetum alopecuroides 'Wucai')、溪水苔草(Carex forficula)、'粉黛'毛芒乱子草(Muhlenbergia capillaris 'Fendai')、'映霜红'帚状须芒草(Schizachyrium scoparium 'Yingshuanghong')为试验材料，通过不同遮荫处理(0%，50%，75%，90%)，对其表型指标进行测定，并利用隶属函数法和灰色关联度法对其进行综合评价和指标筛选。结果表明：到遮荫后期，观赏草的株高、冠幅和茎粗变化有显著差异；遮荫会使5种观赏草分蘖数减少、叶片变长、变薄、叶片和花序数量变少、花期延迟，而叶宽和花序长度在不同植物中表现不一致；'蓝姬'柳枝稷、'五彩'狼尾草和溪水苔草能忍受50%的遮荫环境，'粉黛'毛芒乱子草和'映霜红'帚状须芒草在全光照中长势最好；地上干重、花序数量、分蘖数等7个指标可以作为后续耐荫性较好的评价指标。

关键词: 观赏草, 遮荫, 表型, 评价

Abstract: In order to screen out ornamental grass species tolerant to different shade conditions,the Panicum virgatum 'Lanji',Pennisetum alopecuroides 'Wucai',Carex forficula,Muhlenbergia capillaris 'Fendai',Schizachyrium scoparium 'Yingshuanghong' were used as the test material in this study. The phenotypic indexes of five species were measured under different shade treatments (0%,50%,75%,90%),and the shade tolerance of those five ornamental grasses were comprehensively evaluated and screened by membership function method and gray correlation method. The results showed that by the late shading stage,there were significant differences in plant height,crown width and stem diameter of ornamental grasses. Shading reduced the number of tillers,lengthened and thinned leaves,decreased the number of leaves and inflorescences,and delayed flowering of the five ornamental grasses,while leaf width and inflorescence length were inconsistent in different plants. It can be concluded that P. virgatum 'Lanji',P. alopecuroides 'Wucai' and C. forficula could tolerate 50% of the shade environment,M. capillaris 'Fendai' and S. scoparium 'Yingshuanghong' grow best in 0% shade. Seven indexes,such as above-ground biomass (in dry weight),number of inflorescences,and number of tillers,can be used as evaluation indicators for selection of the better shade tolerant performance of ornamental species in the future.

Key words: Ornamental grass, Shade, Phenotype, Evaluation

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