%0 Journal Article
%A KOU Jing
%A LI Yi-Ying
%A MA Yi-Xin
%A WANG Wen-Yue
%A WANG Yi-Feng
%T Correlation between Reproductive Allocation and Elevation of <em>Saussurea graminea</em> in Eastern Margin of the Tibetan Plateau
%D 2017
%R 10.7525/j.issn.1673-5102.2017.01.004
%J Bulletin of Botanical Research
%P 23-30
%V 37
%N 1
%X Westudied the effect of elevation on the reproductive allocation of <em>Saussurea graminea</em> in Qinghai-Tibetan Plateau, China.We used the field investigation method and dry mass method to evaluate morphological characteristics of <em>S.graminea</em> at different elevations. With the increase of altitude,the reproductive allocation,each tubula r loret mass and mass of pistil were positively correlated with elevation, but individual size, reproductive organ biomass, vegetative organ biomass, tubular loret number and mass of stamenwere negatively correlated with elevation; the reproductive allocation is negatively correlated with individual size. There are trade-offs of reproductive allocation in tubular loret number and mass as well as mass of pistil and mass of stamen. Theelevation had a significant impact on the biomass and reproductive allocation of <em>S.graminea</em>.The altitude could not fully explain the change of reproductive allocation strategy of this alpine perennial, and the reproductive allocation is limited by individual size of <em>S.graminea</em>. The characteristics of vertical distribution of <em>S.graminea</em> is likely to be completed by the individual size of the plant.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2017.01.004