【摘要】 5 a的引种试验研究表明:桤叶唐棣(Amelanchier alnifolia)在吉林省4月中、下旬-5月上旬萌动;4月下旬-5月中旬展叶;高生长期4月下旬-5月中旬开始,7月上、中旬结束,70 d左右;速生期为5月份;地径生长5月中旬-8月下旬或9月上旬,120-140 d,高峰期6-8月份;开花期10 d左右,一般5月上、中旬开花,中下旬结束;果实期30 d;8月上旬形成顶芽,9月下旬落叶。在吉林省各试验区表现出较强适应性,生长良好,在吉林市松花湖地区,5年生开花结果达100％。Lee3、Northline、Smoky、Thressen 4个品种平均公顷产量、单果质量、单果果径与原产地无显著差异,可以确定其为适宜推广的优良品种,可在吉林-通化半山温凉湿润区、集安岭南温暖湿润区和延边盆地温凉区大量引种栽培建园发展。更多还原

【Abstract】 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 halfmountainous 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.更多还原