六盘山区伏毛铁棒锤的生长发育节律及生态适应特性

Studies on the Phenology and Ecological adaptability of Aconitum flavum Hand.-Mazz.Growth in Liupan Mountains

通过对六盘山区伏毛铁棒锤的物候及其生态适应特性的观测研究,结果表明:4个不同海拔高度的物候观测点中,2609m的居群物候出现最早,光照、气温及降雨量是影响伏毛铁棒锤生长发育节律的主要因素。伏毛铁棒锤各时期的营养生长与生殖生长状况反映其对生境与气候的适应特性,这种生长发育节律的特性是其遗传因子对生境条件长期适应进化的结果。

The items of the phenology and the ecological adaptability of Aconitum flavum Hand-Mazz. in Liupan Mountains were st.died. The results show that the population growth in the ahitude 2 609 meters is firstly observed in four different altitude observa- lion locations. These climatic factors, including light, temperature and rainfall, are the main factors to affect the growth and development rhythms of Aconitum flavum Hand.-Mazz.. Vegetative and reproductive growth of Aconitum flavum Hand.-Mazz. at different stages of growth and development reflects its adaptation to habitat and climatic features. This feature of the growth and development rhythms of A conitumflavum Hand.-Mazz. is long-term evolution results of its genetic factors to habitat conditions.