Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/15430
Title: Clonal integration influences on life-history traits of Eicchornia crassipes (Mart.) Sölms. (Pontederiaceae)
Other Titles: Inflûencias da integração clonal em aspectos da história de vida de Eicchornia crassipes (Mart.) Sölms. (Pontederiaceae)
Authors: Coelho, Flávia de Freitas
Cornelissen, Tatiana Garabini
Neves, Ana Carolina
Brondani, Gilvano Ebling
Magnago, Luiz Fernando Silva
Keywords: Plants – Life cicle
Plants – Reproduction
Plant biomass
Plantas – Ciclo de vida
Plantas – Reprodução
Biomassa vegetal
Eicchornia crassipes
Issue Date: 22-Sep-2017
Publisher: Universidade Federal de Lavras
Citation: FERREIRA, G. R. D. Clonal integration influences on life-history traits of Eicchornia crassipes (Mart.) Sölms. (Pontederiaceae). 2017. 80 p. Tese (Doutorado em Ecologia Aplicada)-Universidade Federal de Lavras, Lavras, 2017.
Abstract: This work aimed to examine how clonality, specifically clonal integration, influences the life history traits of Eicchornia crassipes (Mart.) Sölms. We developed greenhouse experiments in order to comprehend the relationship between floral traits, intra-individual variation on floral traits and patterns of biomass allocation with the maintenance between ramets generated by asexual reproduction and mother ramets. We collected adult individuals on Represa do Funil, Ijaci, and used their second asexual offspring generation to carry out the experiments. Individuals were daily observed during three months, and floral traits were sampled. At the end of the experiment plants were taken to the laboratory, where they were separated into parts (stems, leaf blades, petioles and roots), dried, and weighed. We found that clonal ramets exhibited larger and more robust flowers. In addition, the floral traits were less variable, on the intra-individual level, on clonal ramets than on isolated ones, indicating that clonal integration guarantee the transport of resources from mother to daughter ramets in cases of low environmental availability. These results lead us to the conclusion that clonality plays a central role on water hyacinth life history, ensuring an increase on sexual reproduction investment and is possibly linked to a viable production of propagules in different environmental conditions.
URI: http://repositorio.ufla.br/jspui/handle/1/15430
Appears in Collections:Ecologia Aplicada - Doutorado (Teses)



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