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一、来历:昭林6号杨(赤峰杨×美、加、青)是我所用人工有性杂交育成。一九六四年杂交,经过培育、选择、鉴定等十年的实验观察,一九七四年定为良种。二、形态特征:乔木,父母本为混合遗传型,雄株无性系。树干端直,灰绿色,主干基部树皮浅裂,皮孔菱形,明显,密集;树冠呈卵形或近塔形,侧枝与主干呈45—65度;枝条圆筒状,微具棱,黄绿色;芽纺垂形,棕色,长0.6—1厘米;叶形变化极多,在长枝上的叶形呈三角状略圆形或菱状圆形,叶面长10—12厘米,宽8—11厘米,先端渐尖,基部截形或广楔形,叶缘具波状的圆锯齿,每厘米内4—6齿;短枝上的叶菱形或卵形,先端长渐尖,基部楔形,表面鲜绿,背面淡绿,长6—10厘米,宽3—7厘米。花序长约
First, the origin: Zhaolin 6 Yang (Chifeng Yang × the United States, Canada, Green) is my artificial hybrid sex breeding. In 1964, after years of experimental observation through cultivation, selection and appraisal, it was designated as a thoroughbred in 1974. Second, the morphological characteristics: trees, parents of this mixed genetic type, male clones. Tree trunk straight, gray-green, trunk bark shallow base, leather hole rhombus, obvious, dense; crown was oval or nearly tower, collateral and trunk was 45-65 degrees; Green; sprouted vertical, brown, 0.6-1 cm long; leaf shape changes very much in the long branch of the leaf-shaped triangle was slightly rounded or rhombus-shaped round, leaves 10-12 cm long and 8 -11 cm, apex acuminate, base truncate or broadly cuneate, leaf margin with undulate serrate, 4-6 teeth per cm; leaf lobed or ovate on short branches, apex long acuminate, base cuneate, surface Fresh green, light green back, 6-10 cm long, 3-7 cm wide. Inflorescences about