Biomass Allocation in the Dioecious Tropical Palm Chamaedorea tepejilote and Its Life History Consequences

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	Biomass Allocation in the Dioecious Tropical Palm Chamaedorea tepejilote and Its Life History Consequences
	Ken Oyama ; Rodolfo Dirzo
刊名	Plant Species Biology
	1988
卷号	3 期号:1 页码:27-33
中文摘要	The patterns of resource allocation are described for a dioecious tropical palm, Chamaedorea tepejilote. Resource allocation was measured by harvesting fifteen plants of C. tepejilote. The relative allocation of biomass in the stem increased with the size of the plant; that in the leaves decreased and that in the other structures remained roughly constant. Female plants showed a greater total reproductive effort, though male plants produced more inflorescences during the flowering season. Both male and female plants allocated more resources to prop root than to hypogeal roots. The annual productivity of reproductive and vegetative parts of C. tepejilote was estimated using allometric relationships for different plant structures and from demographic data obtained from the field. Annually, female plants allocated significantly more resources to leaves than male plants. Yearly productivity of inflorescences was higher for male plants, while female plants had greater total reproductive productivity (inflorescences and fruits). Correlation analysis showed an increase in reproductive effort with plant size, and an inverse relationship between fecundity and probability of survival, fecundity and residual reproductive value, and reproductive effort and life expectancy; these relationships suggested a cost in reproduction. Additionally, mature plants with different growth rates exhibited differences in fecundity: tall plants (>2.5m height) that grew more than 40 cm in height in four years had lower values of fecundity in comparison to plants of slower growth. These data were discussed in the context of the implications in the life history of a dioecious tropical plant.
公开日期	2014-06-24
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/4985]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Ken Oyama,Rodolfo Dirzo. Biomass Allocation in the Dioecious Tropical Palm Chamaedorea tepejilote and Its Life History Consequences[J]. Plant Species Biology,1988,3(1):27-33.
APA	Ken Oyama,&Rodolfo Dirzo.(1988).Biomass Allocation in the Dioecious Tropical Palm Chamaedorea tepejilote and Its Life History Consequences.Plant Species Biology,3(1),27-33.
MLA	Ken Oyama,et al."Biomass Allocation in the Dioecious Tropical Palm Chamaedorea tepejilote and Its Life History Consequences".Plant Species Biology 3.1(1988):27-33.