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Photosynthetic responses of four tropical tree species grown under gap and understorey conditions in a semi-deciduous forest Rev. Bras. Bot.
Souza,Gustavo M.; Sato,Agnaldo M.; Ribeiro,Rafael V.; Prado,Carlos Henrique B. A..
Leaf CO2 assimilation (A) as a function of photosynthetic photon flux density (Q) or intercellular CO2 concentration (Ci) and chlorophyll fluorescence measurements were carried out on four tropical woody species growing in forest gap and understorey (Bauhinia forficata Link. and Guazuma ulmifolia Lam. as pioneers, and Hymenaea courbaril L. and Esenbeckia leiocarpa Engl. as non-pioneers). Chlorophyll fluorescence indicated similar acclimation capacities of photochemical apparatus to contrasting light environments irrespective to plant species. Maximum CO2 assimilation and quantum yield derived from A/Q curves indicated higher photosynthetic capacity in pioneer than in non-pioneer species in forest gap. However, the differences among species did not show a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acclimation; Chlorophyll fluorescence; Forest succession; Leaf gas exchange; Photosynthetic response curves.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042010000400002
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