Étude de la variabilité morphologique et du comportement écophysiologique du poirier-pays (Tabebuia heterophylla) dans la perspective de la rédaction d'un guide de reboisement

Abstract : At a time when the area is lacking in fertile land, reforestation land by desertification that develops. Trees suitable for this particular condition such as Tabebuia heterophylla seems promising in this context. To learn more about the ability of drought resistance of this latter observation in vivo ecophysiological capabilities and mophologiques seems an effective way to acquire the information of this report the actual capacity of this species considered resistant and economic interest. The objective of this course is to identify the capabilities of drought resistance of this species to highlight the mechanisms put in place during periods of low rainfall and measure the first morphological evidence of this species. To do this, the pressurevolume curves, curves vulnerability to cavitation, as well as observations of photosynthetic activity and water potential were realized and observed. Furthermore, morphological and forest inventories observations are made on different leaf morphologies and several Guadeloupe sources. This study demonstrates the capacity of drought resistance of T. heterophylla high and put in evidence different behavior depending on the season, morphology and origin.
Document type :
Master thesis
File URL :
http://docnum.univ-lorraine.fr/prive/BUS_M_2013_DAUMUR_ROMAIN.pdf
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https://hal.univ-lorraine.fr/hal-01778203
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Submitted on : Wednesday, April 25, 2018 - 2:52:10 PM
Last modification on : Thursday, April 26, 2018 - 1:15:50 AM

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Romain Daumur. Étude de la variabilité morphologique et du comportement écophysiologique du poirier-pays (Tabebuia heterophylla) dans la perspective de la rédaction d'un guide de reboisement. Sciences de l'environnement. 2013. ⟨hal-01778203⟩

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