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1998年大兴县林业局林保站自中国林科院引种了抗食叶害虫的欧洲黑杨基因工程植株在进行繁殖 ,并营造了试验林。通过 2年来的观测发现 ,这些基因工程植株在苗期对透翅蛾 ,幼树时期对舞毒蛾、春尺蠖有明显抗性。1 引种地区条件大兴县地处永定河下游 ,土壤为沙质土和沙壤土。年平
In 1998, Daxing County Forestry Bureau forest guard station from China Academy of Forestry introduced anti-leaf pests of the European black poplar genetic engineering plant breeding and to create a pilot plantation. Through 2 years of observation, we found that these genetically engineered plants have obvious resistance to Gypsy moth and sapling at seedling stage. 1 Introduction Area Conditions Daxing County is located in the lower reaches of the Yongding River, sandy soil and sandy loam soil. Flat