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DISRUPTION AND RECOVERY OF INTRA·CROWN FRUITING SYNCHRONY IN A CASSIA GRANDIS (LEGUMINOSAE) TREE

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dc.contributor.author Janzen, Daniel H.
dc.date.accessioned 2019-07-09T14:49:22Z
dc.date.available 2019-07-09T14:49:22Z
dc.date.issued 1986
dc.identifier.uri http://hdl.handle.net/11606/1421
dc.description.abstract Five large branches of a Cassia grandis tree were deflowered in its flowering year; the consequence was that 10-20 percent of the floweringfruiting capacity of the tree's crown was offset by one year from the tree's normal biennial flower ing/fruiting cycle. During the following five years, the sexual cycling of the five experimental branches returned to synchrony with the remainder of the tree. Resynchronization occurred through the process of the 5 branches gradually decreasing their fruit num bers in the tree's non-fruiting years and gradually increasing their fruit numbers in the tree's fruting years. This suggests both independence of sexual behavior by branches and sensitivity of branches to the ho rmonal cueing of the tree as a qhole. In Cassia grandis, selection for strong intra-crown sexual synchrony among years is probably based on decreased seed predation by bruchid beetles when the tree lack.s a seed crop every other year. es_CR
dc.language.iso en es_CR
dc.subject seed predation, tropical biology Costa Rica, biennial flowl'ring, fruit, phenology es_CR
dc.title DISRUPTION AND RECOVERY OF INTRA·CROWN FRUITING SYNCHRONY IN A CASSIA GRANDIS (LEGUMINOSAE) TREE es_CR
dc.type Article es_CR


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    Artículos de Acceso Abierto y Manuscritos de Investigadores entregados a ACG

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