草地学报

草地学报 ›› 2016, Vol. 24 ›› Issue (3): 693-698.DOI: 10.11733/j.issn.1007-0435.2016.03.032

• 研究专报 • 上一篇    下一篇

紫茎泽兰种子沉降特征研究

许留兴1, 张锦华2, 叶红环2, 寇冬梅3, 朱江3, 刘秀峰4   

  1. 1. 贵州师范大学喀斯特研究院, 贵州 贵阳 550001;
    2. 贵州省畜牧兽医研究所, 贵州 贵阳 550005;
    3. 贵州省农业资源环境管理站, 贵州 贵阳 550001;
    4. 贵州省草业研究所, 贵州 贵阳 550006
  • 收稿日期:2014-12-08 修回日期:2015-06-15 出版日期:2016-06-15 发布日期:2016-09-18
  • 通讯作者: 张锦华
  • 作者简介:许留兴(1991-),男,贵州六盘水人,硕士研究生,主要研究方向为喀斯特饲草青贮,E-mail:xuliuxing1991@163.com
  • 基金资助:

    贵州省农业攻关项目（黔科合NY字[2011]3049号）；贵州省科学基金（黔科合J字[2012]2201号）；贵州师范大学研究生创新基金项目（研创2014[23]）资助

A Study on Seed Settling Characteristics of Eupatorium adenophorum Spreng

XU Liu-xing1, ZHANG Jin-hua2, YE Hong-huan2, KOU Dong-mei3, ZHU Jiang3, LIU Xiu-feng4   

  1. 1. Institute of Karst, Guizhou Normal University, Guiyang, Guizhou Province 550001, China;
    2. Guizhou Animal Husbandry and Veterinary Institute, Guiyang, Guizhou Province 550005, China;
    3. Guizhou Agricultural Resources and Environment Management Station, Guiyang, Guizhou Province 550001, China;
    4. Pratacaltural Institute of Guizhou, Guiyang, Guizhou Province 550006, China
  • Received:2014-12-08 Revised:2015-06-15 Online:2016-06-15 Published:2016-09-18

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摘要：

本试验通过对紫茎泽兰（Eupatorium adenophorum Spreng）种子外形特征和冠毛特征进行观测，并利用飞行试验和模拟探讨其飞行能力，以期探索其种子传播规律。通过线性回归得出不同高度飞行速度的相关系数r值比较大，F检验成极显著相关，拟合较好；种子长度、质量和种子冠毛间的夹角与沉降速度呈负相关，冠毛与种子间的夹角呈正相关，随着高度的增加，种子长度与冠毛长度对沉降速度的影响也逐渐显著。

关键词: 紫茎泽兰, 种子, 沉降

Abstract:

This experiment obtained basic data by observing the seed shape and pappus features of Eupatorium adenophorum Spreng, and studied its flying ability by using flight test and simulation to explore the seed propagation rule. The correlation coefficient was large for the flying speed at different heights by linear regression, and the F test was significant; Sedimentation rate was negatively correlated with seed length quality and the angle between the pappus of seed, pappus was positively correlated with seed angle, with the increasing of height, impact of seed length and pappus' length on sedimentation rate became gradually prominent.

Key words: Eupatorium adenophorum Spreng, Seed, Sedimentation

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