福建山区生境黄花倒水莲生殖构件表型可塑性及变化规律  

Phenotype Plasticity and Regulations of Reproductive Modules on Polygala fallax Hemsl.Population in the Fujian Mountains Habitat

作　　者：欧建德 

机构地区：[1]福建省明溪县林业局,福建明溪365200

出　　处：《中国农学通报》2014年第19期157-160,共4页Chinese Agricultural Science Bulletin

基　　金：三明市林业重大科研项目"珍稀药用植物黄花倒水莲林冠下栽培关键技术研究"(明林计财2013-57)

摘　　要：为了解黄花倒水莲生殖构件表型可塑性及变化规律,在福建山区竹林群落内,采用大样本随机取样,对黄花倒水莲种群的生殖构件进行了表型可塑性的研究。结果表明,在籽实完熟期,黄花倒水莲的单个生殖植株的生物量（58.67±35.77）g;豆荚生物量及豆荚数分别为（6.64±4.93）g、（35.6±30.50）个;种子生物量与种子数分别为（2.61±2.19）g、（61.97±54.15）粒;生殖分配Ⅰ与生殖分配Ⅱ分别为10.55%±3.39%、3.93%±1.62%;各生殖构件表型观测最大值与最小值比值为4.23-39.5。豆荚生物量及豆荚数、种子生物量与种子数与总生物量间呈极显著性的线性正相关关系;豆荚数、种子数、生殖分配Ⅰ与生殖分配Ⅱ与其他组分生物量分配呈极显著性幂函数负相关关系。黄花倒水莲种群生殖植株同时具有同速生长和异速生长2种不同增减过程的表型可塑性调节。The aim was to understand phenotype plasticity and regulations of reproductive modules on Polygala fallax Hemsl. population. By large sampling analysis, the phenotype plasticity of reproductive modules on Polygala fallax Hemsl. population was studied. The results showed that the biomass of each reproductive rametof Polygala fallax Hemsl. population was（58.67±35.77） g; the biomass and number of pods were respectively（6.64±4.93） g and 35.6±30.50; the biomass and number of seeds were respectively（2.61±2.19） g and（61.97±54.15）; reproductive allocation Ⅰ（RAⅠ） and reproductive allocation Ⅱ（RAⅡ） were respectively 10.55%±3.39% and 3.93%±1.62%; the maximum in the observed phenotype date of reproductive module were 4.23-39.5 times more than the minimum. There were most significant positive correlations between the biomass andnumber of pods and seeds and the total biomass of ramets, respectively（P〈0.01）, which could be described bylinear equations. There were most significant negative correlations between the number of pods and seeds, RAⅠ, RAⅡ, and the allocations of component, respectively（P〈0.01）, which could be described by powerfunction. There were two different regulations of phenotype plasticity in productive plants of Polygala fallax Hemsl. population at the time, which were processesof increase/decrease for the isogeny and allometry.

关 键 词：黄花倒水莲 生殖构件 表型可塑性 种群 

分 类 号：S718.53[农业科学—林学] S685.99