新疆农田寄生杂草菟丝子种子检疫鉴别特征

A Study on Seed Traits of Parasitic Weeds Cuscuta sp. in Xinjiang Farmland

详细研究了新疆农田寄生杂草菟丝子的种子外部形态特征和种胚形态,对新疆农田主要的菟丝子属植物:苜蓿菟丝子(Cuscuta approximata Bab.)、田野菟丝子(Cuscuta campestris Yuncker)、欧洲菟丝子(Cuscuta europaea Linn.)、亚麻菟丝子(Cuscuta empilinum Weihe)、中国菟丝子(Cuscuta chinensis Lam.)、单柱菟丝子(Cuscuta monogyna Vahl.)、杯花菟丝子(Cuscuta cupulata Engelm)及南方菟丝子(Cuscuta australis R.Br.)共8种菟丝子的种子,分别进行外部形态、种胚形状及结构的描述和绘图,编制分种检索表,为新疆菟丝子的种子检疫及鉴定提供鉴别依据。

Based on external morphological traits and the shape of embryo, a contrast has been made among eight species seeds of parasitic weeds Cuscuta sp. in Xinjiang. An index to species has been worked out, and the characters of extemal and intemal morphological have been drown and described in detail such as Cuscuta approximata Bab. , Cuscuta campestris Yunck, Cuscuta europaea Iinn. , Cuscuta empilinum Weihe, Cuscuta chinensis Lam., Cuscuta monogyna Vahl. , Cuscuta eupulata Engelm and Cuscuta australis R. Br., respectively. This work has provides basis for the detection of Cuscuta sp. seeds in Xinjiang.