Variabilité Morphologique des Cônes et Graines de pin d'Alep et pin Pignon en Tunisie

Abstract

The morphological variability of Pinus halepensis Mill. and Pinus pinea L. cones and seeds was studied as a function of the geographic conditions of the various sites. A variance analysis of the morphological parameters considered for both species indicates highly significant inter-site differences, which largely reflect the influence of site conditions on the morphology of cones and nuts and on fruit yield. The Aleppo Pine stands with the highest yield are those located at higher elevations with an arid climate. One of the Stone Pine stands noticeably outscores the others for the parameters examined.