北华大学学报（自然科学版）2016，Vol.17Issue(2)：165-170,6.DOI:10.11713/j.issn.1009-4822.2016.02.005
早春类短命植物生物量研究(Ⅲ) ——顶冰花生物量特征及模型构建
On Spring Ephemeral Plants Biomass(Ⅲ) ——Biomass Characteristics and Biomass Model Construction of Gagea lutea
摘要
Abstract
We investigated the biomass of Gagea lutea by using the whole harvest method, and analyzed the distribution characteristics of underground biomass and aboveground biomass, meanwhile, constructed biomass model of Gagea lutea.The results showed that:the mean individual biomass of Gagea lutea was 0.3162 g.Mean biomass of underground was higher than that of aboveground about 37.92%.Leaf biomass,fruit biomass,total biomass,aboveground biomass and underground biomass were increased with leaf length enlarging, but flower biomass was decreased.There was a close relationship between sexual reproduction and individual size.The proportion of sexual reproduction biomass in total biomass was in a range from 5.47% to 19.42%,the mean was 11 .92%;the proportion of sexual reproduction biomass in vegetation growth biomass was 14 .41%, and showed rise firstly after the fall to rise again with leaf length enlarging.The root-shoot radio was from 0.93 to 1.86,the mean was 1.33,and assumed unimodal type change with the leaf length enlarging.In general,the increase of the Gagea lutea biomass with the leaf length manifested as aboveground growth transformed into underground growth, and the growth of vegetative organ transformed into the growth of reproductive organ.The four biomass estimation models of Gagea lutea with the leaf length including aboveground biomass,underground biomass and total biomass all reached very significant level,except model of underground biomass by index equation.关键词
早春类短命植物/顶冰花/生物量/模型构建Key words
spring ephemeral plants/Gagea lutea/biomass/estimating model分类
农业科技引用本文复制引用
郑金萍,范春楠,程岩,刘彬,李金玉..早春类短命植物生物量研究(Ⅲ) ——顶冰花生物量特征及模型构建[J].北华大学学报（自然科学版）,2016,17(2):165-170,6.基金项目
国家自然科学基金项目(31400387). （31400387）
