TAILIEUCHUNG - Báo cáo khoa học: "Performance of different provenances and of the local population of the Monterey pine (Pinus radiata D Don) in northern Spain"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "Performance of different provenances and of the local population of the Monterey pine (Pinus radiata D Don) in northern Spain. | Ann Sci For 1995 52 515-519 Elsevier INRA 515 Note Performance of different provenances and of the local population of the Monterey pine Pinus radiata D Don in northern Spain s Espinel A Aragonés E Ritter CIMA Apartado 46 01080 Vitoria-Gasteiz Spain Received 22 February 1994 accepted 13 April 1995 Summary The performances of 3 Pinus radiata provenances composed of different subprovenances and of the local population were compared in a completely randomized design in a 4-year trial at Onyi Mountain Basque country northern Spain . Significant differences between populations were observed for the growth characteristics. The Monterey population showed the best performance although a considerable degree of variation among subprovenances was present. Unfavorable climatical conditions in the winter of 1992 1993 caused high mortality rates in the provenances of Monterey and Cambria while the Ano Nuevo population and the local population were less affected. Based on the comparison of growth characteristics mortality and morphological characters Ano Nuevo seems to be the possible origin of the local Basque population. Pinus radiata I provenance performance morphological character frost resistance Resume Performances comparées de differentes provenances de Pinus radiata D Don et d une population locale au nord de I Espagne. Les performances de 3 provenances de Pinus radi-ata composées par differents sub-provenances ont été comparées avec une population locale à la montagne d Onyi Pays Basque nord de I Espagne dans un essai randomise pendant 4 ans. On a trouvé des differences significatives pour les caractéristiques de croissance entre les populations étudiées. La population Monterey a montré les meilleures performances malgré les variations entre sub-provenances. Les mauvaises conditions climatiques pendant I hiver 1992 1993 ont été la cause de la mor-talité élevée des populations Monterey et Cambria tandis que les populations Ano Nuevo et locale ont été moins affectees. Sur

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