冬樱花物候及观赏期观测

云南各地冬樱花花期有一定差异,但大都集中在12月上旬至1月中旬,紫色叶呈现期为12月下旬至1月上旬.果实成熟期为3月至4月.最佳观花期为12月中旬至1月上旬,持续时间昆明为12～15 d,思茅和景谷为10～12 d.最佳观紫色叶期为12月下旬至1月上旬,昆明为7～8 d,思茅为4～5 d.最佳现果期昆明为4月上、中旬,持续10～15 d,思茅和景谷为3月下旬至4月上旬,10～12 d.由不同地区和同一地区不同年份冬樱花物候的差异,认为冬樱花属低温春化才能开花的植物.

The Phenology and Display Season of Cerasus cerasoides

The blossom of the most population of Cerasus cerasoides is from the early December to early January although it is not totally same in the different regions of Yunnan, and purplish red leaves are displayed from the middle December to early January. The fruits maturation period is from March to April. The best display season of bloom is from the middle of December to early of January, lasting 12-15 days in Kunming and 10-12 days in Jinggu and Simao. The best display season of purlish red leaves, from the late December to early January, 7-8 days in Kunming, and 4-5 days in Jinggu and Simao. The best display season of fruits, from the early to the middle of April, 10-15 days in Kunming, and from the late March to early April, 10-12 days in Jinggu and Simao. The flowering phenology in the different regions and the different years in same region were analyzed, and the result was the verbalization of low temperature is necessary before bloom.