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自1954年我所西陵试验场发现易县毛白杨 雌株(以下简称易县雌株),至今已有30余年 历史。这些年来,各地相继进行了引种栽培, 并已广泛用于生产。多年来,在各种立地条件 下栽培,生长表现良好,充分显出适应性强、 生长快的优良特性,是营造速生丰产林、农田 防护林和四旁绿化的优良树种,已被列入全国 毛白杨优良类型之一。现将易县雌株在各地的 生长情况分述如下:
Since 1954, we found Xinying Poplar female plant (hereinafter referred to as Yixian female plant) in our Xiling Experimental Station, which has been more than 30 years old. In recent years, various places have been introduced and cultivated, and have been widely used in production. Over the years, under various site conditions of cultivation, good growth performance, fully demonstrated excellent adaptability, fast growth of the fine features, is to create fast growing forest, farmland shelterbelts and green trees around the fine tree species, has been included in the national poplar One of the finest types. Now Yi County female plant growth in various places are described below: