Photosynthesis and successional status of seedlings in a tropical semideciduous rain forest in Nigeria

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dc.creatorRiddoch, I.
dc.creatorGrace, J.
dc.creatorFasehun, F.E.
dc.creatorRiddoch, B.
dc.creatorLadipo, D.O.
dc.date1991-06
dc.date2019-06-25T17:09:00Z
dc.date2019-06-25T17:09:00Z
dc.date.accessioned2026-06-27T15:55:02Z
dc.description(1) This study tests the hypothesis that photosynthetic performance of seedlings in a tropical forest depends on the successional status of the species. According to this hypothesis, pioneers display an enhanced capacity to utilize the high photon flux density associated with a gap. (2) Data were collected from nine species representing three ecological groupings: weeds of gaps, pioneer trees and climax trees. Pioneer trees had photosynthetic attributes similar to weeds. Compared to climax trees, both groups had higher stomatal conductances, higher light compensation points, higher rates of dark respiration, much higher mesophyll conductances, and often higher quantum efficiencies. (3) In a fluctuating light regime, there was no support for the hypothesis that species growing in shade show rapid stomatal responses to sunflecks, all species showed fluctuating rates of photosynthesis with little or no adjustment of stomata during the 20-min test.
dc.identifierhttps://hdl.handle.net/10568/101710
dc.identifier.urihttp://hdl.handle.net/123456789/117349
dc.languageen
dc.publisherJSTOR
dc.rightsLimited Access
dc.sourceRiddoch, I., Gracr, J., Fasehun, F.E., Riddoch, B. & Ladipo, D.O. (1991). Photosynthesis and successional status of seedlings in a tropical semi-deciduous rain forest in Nigeria. Journal of Ecology, 79, 491-503.
dc.subjectseedlings
dc.subjecttropical forests
dc.subjectweeds
dc.subjecttrees
dc.subjectphotosynthesis
dc.titlePhotosynthesis and successional status of seedlings in a tropical semideciduous rain forest in Nigeria
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)