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问荆 (Ｅｑｕｉｓｅｔｕｍａｒｖｅｎｓｅ)属于蕨类植物门木贼纲木贼科木贼属 ,是一种多年生杂草[1～ 2 ] 。问荆分布广泛 ,危害严重 ,而且其危害有进一步蔓延的趋势[3～ 5] 。研究其生长发育特性将为今后彻底防除问荆及避免其农牧危害奠定基础[6～ 7] 。1 材料与方法1 .1 问
Jing (Equisetumarvense) belongs to the fern door Equisetum Gangpidae Equisetum, is a perennial weeds [1 ~ 2]. Asked Jing widely distributed, endangering serious, but also the risk of further spread of the trend [3 ~ 5]. Studying its growth and development characteristics will lay the foundation for the thorough prevention and control of pests and the avoidance of their pests and diseases [6-7]. 1 materials and methods 1 .1 ask