Pin d'alep-pin brutia
Source
Annales de la Recherché Foresriere au Maroc
Issue
Vol. 1997, Issue 8-10 (31 Dec. 1997), pp.79-97, 19 p.
Publisher
Centre de Recherche Forestière
Publication Date
1997-12-31
Country of Publication
Morocco
No. of Pages
19
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Pines ol the Halepensis group (Aleppo pine and brutia pine) cover more than 7 millions ha in Mediterranean low and middle elevation regions.
Aleppo pine (Pinus halepensis Mill.) extends on the western part of the Mediterranean basin and reaches its southern limit in Morocco.
Because ol'high human pressures (over exploitation and tires).
2 thirds of the Moroccan Aleppo pine area disappeared, This pioneer species, well adapted to semi-arid and sub-humid bioclimates is of main importance for low elevation afforestation for production or soil conservation purposes.
In order to choose natural provenances or new varieties well adapted to natural conditions and objectives of plantation, genetic variability of adaptive traits has to be studied.
Most of the provenances trials settled around 1970.
in Morocco, unfortunately disappeared.
So, a new multi-site provenance test involving many Moroccan provenances was initiated in 1990.
In order to estimate genetic parameters required for the C.N.R.F.
Aleppo pine breeding program, a progeny test could also be established.
Some stands located in specific natural conditions and endangered because of the lack of natural regeneration worth being protected.
Studies about estimation of genetic variability and breeding of Pinus brutia Ten.
would be fully justified in Morocco.
This species has a good wood production and could advantageously be used in natural conditions situated between Aleppo pine and maritime pine or black pine.
This program could offer the opportunity for international cooperation with Tunisia and France.
Abstract FRE
L.es pins de la section Halepensis (Pin d'Alep - Pin brutia) couvrent plus de 7 millions d'hectares en region mediterraneenne de basse et nioyenne altitude.
S'etendant dans la partie occidentale du basin mediterraneen, le pin d'Alep (1'inus halepensis Mill.) atteint.
au Maroc.
la liniite sud de son aire.
En raison de fortes pressions anthropiques (exploitation et incendies).
les deux tiers de la surface marocaine en pin d'Alep auraient disparu.
Cette espece colonisatrice.
plastique et bien adaptee aux bioclimats semi-arides et sub-humides occupe line place preponderante dans les reboisements de production on protection a basse altitude.
L"utilisation de materiel vegetal (provenances naturelles ou varietes selectionnees) adapte aux conditions et objectifs de ees plantations, necessite l'ctude de la variabilite genetiquc des caracteres adaptatifs de 1'espcce.
Les plantations comparatives de provenances installees an Maroc dans les annees 70 out malheureusement presque toutes disparu.
Aussi, tine nouvelle serie de plantations incluant de nombreuses provenances marocaines.
a ete initiee en 1990.
Aim d'estimer les parametres genetiques necessaires a la conduite du programme d'amelioration genetique du C.N.R.F..
une plantation comparative de descendances devrait egalement etre mise en place.
D'autre part certains peuplements situcs dans des conditions naturelles particulieres et menaces de disparition faute de regeneration, meriteraient d'etre proteges.
Faifiu.
mi prograninie devaluation de la variabilite genetique et d'amelioration du pin brutia (Pinus brutia Ten.) serait largenient justitie au Maroc.
Cette essence, aux exigences ecologiques differentes de celles du pin d'Alep et aux bonnes potentialites forestieres pennettrait de mieux valoriser 1'etage situe entre pin d'Alep d'une part et pin maritime ou pin noir d'autre part.
Le programme potirrait fnire I'objet d'une cooperation Internationale incluant la Tunisie et la France.
American Psychological Association (APA)
Pichot, Christian. 1997. Pin d'alep-pin brutia. Annales de la Recherché Foresriere au Maroc،Vol. 1997, no. 8-10, pp.79-97.
https://search.emarefa.net/detail/BIM-534584
Modern Language Association (MLA)
Pichot, Christian. Pin d'alep-pin brutia. Annales de la Recherché Foresriere au Maroc No. 8-10 (1997), pp.79-97.
https://search.emarefa.net/detail/BIM-534584
American Medical Association (AMA)
Pichot, Christian. Pin d'alep-pin brutia. Annales de la Recherché Foresriere au Maroc. 1997. Vol. 1997, no. 8-10, pp.79-97.
https://search.emarefa.net/detail/BIM-534584
Data Type
Journal Articles
Language
French
Notes
Includes bibliographical references : p. 87
Record ID
BIM-534584
