生态学杂志2011，Vol.30Issue(9)：1875-1880,6.
华南象草分株构件生长及其生物量分配的相关性
Correlation of modular growth and biomass allocation of Pennisetum purpureum cv.Huanan ramets.
摘要
Abstract
In order to understand the variation patterns of Pennisetum purpureum ramets modular growth and biomass allocation under conditions of cultivation, an analysis was made on the modular biomass of P. Purpureum cv. Huanan ramets measured in June and December 2009. During the growth process of the ramets, the leaf biomass increased in linear pattern, with the determination coefficient R2 ranged from 0.209 to 0. 784, and the culm biomass increased in linear or power pattern, with the R2 ranged from 0.687 to 0.989, suggesting that the increasing pattern of the culm biomass was much steadier than that of the leaf biomass. With the increase of ramet total biomass, the increasing rate of the leaf biomass in vegetative period was 3. 39 times of that in reproductive period. However, the increasing rate of the culm biomass in reproductive period was 1.13 times of that in vegetative period. In reproductive period, the dead leaf biomass increased steadily in a linear pattern, with the determination coefficient R2 ranged from 0. 471 to 0. 676, The correlation models of the inflorescence biomass were all non-significant (P>0. 05 ) , and the allocation ratio of the inflorescence biomass decreased in a power pattern, with a power value of -1. 037. The allocation ratios of the leaf and culm biomass in reproductive period changed in power pattern, with the power values of -0. 387 and 0.091, respectively.关键词
象草/分株/构件/生物量分配/相关性模型Key words
Pennisetum purpureum- ramet/ module/ biomass allocation/ correlation model.分类
农业科技引用本文复制引用
李有涵,唐然,解新明..华南象草分株构件生长及其生物量分配的相关性[J].生态学杂志,2011,30(9):1875-1880,6.基金项目
国家自然科学基金项目(30972138和30671489)资助. （30972138和30671489）
