外来物种加拿大蓬生物学特征及危害的研究

The biology characteristic and harmfulness of Conyza canadensis in Dongting area

通过对洞庭湖区外来植物加拿大蓬Conyza canadensis的研究,初步弄清了该植物的生物学特征及危害特点。该植物在洞庭湖区分布广泛,适应性强,繁殖快,危害农作物严重。另外对加拿大蓬的茎叶生长规律、伴生植物、分布生境与繁殖特性以及形成危害的原因等进行了综合分析,为加拿大蓬的综合防除与利用提供了重要资料。

In this paper,the alien species of Conyza canadensis in Dongting area was studied, its biology and harmfulness characteristic were revealed, stem and leaf growth rule, accompanying plant, distribution, propagate types and hazards causes were analyzed comprehensively. This plant had characteristics such as abord distribution, batter adaptability, faster reproduction and grave hazard to crop. This paper provided important information for comprehensive control and utilization of C. canadensis.