疣颖草、圆柱山羊草及节节麦籽实的形态鉴定  

Morphological identification of the seeds of Thelepogon elegans Roth,Aegilops cylindrica Host and Aegilops tauschii Coss.

作　　者：刘勇 方焱 左然玲 刘娟 张裕君 康芬芬 虞赟 Liu Yong;Fang Yan;Zuo Ranling;Liu Juan;Zhang Yujun;Kang Fenfen;Yu Yun(Tianjin Customs District,Tianjin 300454,China;Huangpu Customs District;Technology Center of Fuzhou Customs District/Fujian Key Laboratory of Inspection and Quarantine Technology Research)

机构地区：[1]天津海关,天津300454 [2]黄埔海关 [3]福州海关技术中心/福建省检验检疫技术研究重点实验室

出　　处：《植物检疫》2024年第4期45-48,共4页Plant Quarantine

基　　金：国家重点研发计划(2021YFD1400102);福州海关科研项目(FK2023-08)。

摘　　要：疣颖草(Thelepogon elegans Roth)是原产于热带非洲和东南亚的禾本科疣颖草属植物,为入侵农田、草原和牧场的有毒杂草。圆柱山羊草(Aegilops cylindrica Host)和节节麦(Aegilops tauschii Coss.)是隶属于禾本科山羊草属的两种检疫性杂草。这3种外来杂草的籽实常随进境粮谷类及油料作物贸易进入我国,且屡有截获。三者籽实大小和外部形态相近,容易混淆,目前疣颖草属我国未见分布报道,亦无可参考植株及果实标本。本文针对区分三者籽实的主要鉴别特征——小穂、小花及颖果角度进行形态学研究,以期为口岸检疫鉴定工作提供理论依据和技术支持。Thelepogon elegans Roth(Poaceae:Thelepogon Roth) is a grass native to tropical Africa and Southeast Asia. It is a noxious weed that invades farmland,grasslands and pastures. Aegilops cylindrica Host and Aegilops tauschii Coss. are two quarantine weeds belonging to the genus Goatgrass of the Gramineae family. The seeds of these three exotic weeds often enter our country with the trade of imported cereals and oil crops,and they are often intercepted. The seed size and external morpholo gy of the three plants are similar,and they are easy to be confused. At present,there are no distribution reports of verruca genus in China,and there are no reference plants and fruit specimens. In order to provide theoretical basis and technical support for port quarantine identification,morphological studies were carried out to distinguish the main identification features of the three seeds-spikelet,florets and caryopsis.

关 键 词：疣颖草 圆柱山羊草 节节麦 籽实 鉴定 

分 类 号：S41-30[农业科学—植物保护]