摘要
牡丹催花过程中不同的生长发育阶段对有效积温的需求不同。研究结果表明：牡丹的不同品种之间，同一品种的不同发育阶段对有效积温有着不同的需求；晚花品种达到开花时所需的有效积温较中花品种多；同一类型品种中花瓣多的品种较花瓣少的品种所需的有效积温多；同一品种经历自然低温处理时间越长，达开花时所需有效积温越多。另外，牡丹新技与花蕾的生长发育之间存在着一定的竞争作用。
The demand of effective atcumulative temperature is studied during the forcing culture of tree pe- ony in this article. It differs in dif1er- ent cultivars and for diffelent stages. The demand of mid--flowering cultivars is less than that of late cultivars, dou- hle flowers is more than that of single flower. In the same cultivar the longer time of low temperature it proceeds, the more effective accumulative tem- perature it needs. In addition, there is certain compelition of nutrients be- tween new hranches and buds of tree peony.
出处
《中国园林》
2002年第2期86-88,共3页
Chinese Landscape Architecture
关键词
有效积温
牡丹
催化
生长发育
观赏植物
effective accumululative temperature
tree peony
forcing culture
