Introduction experiment of Amelanchier alnioliaf.
The result of an introduction experiment conducted in five years showed that the leaves of Amelanchier alnioliaf sprout in mid to late April till early May, and unfold during late April and mid-May in Jilin Province. The height growth begins from late April to mid-May, and stops in early to mid July, exhibiting a growing period of about 70 days. The fast growing period is in May. Growth of base diameter begins from mid-May to late August and in early September, showing a growing period of about 120-140 days. The fast growing period of base diameter is from June to August. The blossoming period is about 10 days. Generally, it blossoms in early to mid May, and stops in late May. The fruit period is 30 days. Terminal buds form is in early August, and leaves fall in late October. A. alnifolia shows a good adaptability and grows well in Jilin Province judging from its exhibition in each experimental area. In Songhua River of Jilin, all the five-year-old A. alnioliaf seedlings blossomed and fruited. There are no significant differences in average per-hectare yield, single fruit weight and diameter of four varieties of Lee3, Northline, Smoky, Thressen compared with those in their producing areas, respectively, so A. alnioliaf is a fine species that can be expanded in a positive way. It can be introduced and cultivated in the half-mountainous areas with warm and damp climate situated between the two cities of Jilin and Tonghua, warm and damp southern ridge of Ji'an as well as warm and cool basin area of Yanbian.