2010
DOI: 10.1590/s0100-84042010000400002
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Photosynthetic responses of four tropical tree species grown under gap and understorey conditions in a semi-deciduous forest

Abstract: − (Photosynthetic responses of four tropical tree species grown under gap and understorey conditions in a semi-deciduous forest). Leaf CO 2 assimilation (A) as a function of photosynthetic photon flux density (Q) or intercellular Co 2 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-pio… Show more

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Cited by 10 publications
(4 citation statements)
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“…Thus, the increase in DI0/RC after thinning may be the main factor that led the remaining trees to reduce FV/FM ratio from 0.83 to 0.72 and the PIABS from 1.7 to 0.8. This association between DI0/RC and photochemical efficiency (FV/FM and PIABS) has been previously demonstrated by Boisvert et al (2006) and Souza et al (2010). However, our results indicate that liming and P fertilization alleviate the effects of high light stress after thinning.…”
Section: Discussionsupporting
confidence: 88%
“…Thus, the increase in DI0/RC after thinning may be the main factor that led the remaining trees to reduce FV/FM ratio from 0.83 to 0.72 and the PIABS from 1.7 to 0.8. This association between DI0/RC and photochemical efficiency (FV/FM and PIABS) has been previously demonstrated by Boisvert et al (2006) and Souza et al (2010). However, our results indicate that liming and P fertilization alleviate the effects of high light stress after thinning.…”
Section: Discussionsupporting
confidence: 88%
“…There was a predominance of pioneer and initial secondary species, but there was also the emergence of late secondary species. Although with few individuals, the occurrence of LS in these sites can be partially explained by the photosynthetic plasticity and ability of these individuals to acclimatize to environments with variation in radiation availability, mainly in semideciduous forests (Martins et al, 2008;Souza et al, 2010;Pezzopane et al, 2018).…”
Section: Discussionmentioning
confidence: 99%
“…The classification of species into groups is particularly necessary in the BAF because many species are represented by only a few individuals (Swaine and Whitmore, 1988). Even if the classification implies a degree of simplification that diminishes information content, it allows general patterns and consequently helps to predict the plant community response to environmental changes without demanding precise information from each species (Reich et al, 2003;Souza et al, 2010).…”
Section: Plant Functional Type Groupingmentioning
confidence: 99%