贵阳市三裂叶豚草秋冬季植株开花动态观察  

A Dynamic Observation of Autumn/Winter Stages Flowering of Ambrosia trifida L.in Guiyang

作　　者：李晓龙 朱秀娥 田太安 罗鑫 LI Xiaolong;ZHU Xiue;TIAN Taian;LUO Xin(Guizhou Academy of Forestry,Guiyang 550005,Guizhou,China;Fanjingshan National Natural Reserve Administration,Jiangkou 554400,Guizhou,China)

机构地区：[1]贵州省林业科学研究院,贵州贵阳550005 [2]贵州梵净山国家级自然保护区,贵州江口554400

出　　处：《贵州林业科技》2024年第1期58-62,共5页Guizhou Forestry Science and Technology

基　　金：黔林科合J字[2017]13号。

摘　　要：为了解三裂叶豚草的秋冬季开花动态情况,采用查阅资料及野外观察的方法,分析其与三裂叶豚草在贵州成功越冬的关系。结果表明:晚至7月份发芽出土的三裂叶豚草的花期可以在秋冬季开花且可以完成整个生活史。植株较矮小的三裂叶豚草更易提前结束秋冬季花期;植株较高大的植株则更倾向花期延长,大大增加了其成功越冬的可能性。Ambrosia trifida L.is one of the most common weed species of disturbed soils in agricultural and urban sites.This study aims to clarify the autumn/winter stages flowering of Ambrosia trifida L.in Guiyang City,Guizhou Province,China.Meta-analysis and field observation were carried out to determine the relationship between the flowering dynamics and the successful overwintering of Ambrosia trifida L.The results showed that the flowering period of Ambrosia trifida L.still bloomed to complete the whole life cycle in autumn and winter after germination in late July.The short plants of Ambrosia trifida L.were more likely to early end the autumn and winter flowering period.While the tall plants were more likely to extend the flowering period,leading to the successful overwintering.

关 键 词：三裂叶豚草 秋冬季 花期 贵阳 

分 类 号：S765[农业科学—森林保护学]