Adaptation of stone pines Pinus sibirica Du Tour and Pinus koraiensis Siebold et Zucc. to various environmental factors in the testing sites

Abstract

Provenance trials of Pinus sibirica Du Tour and Pinus koraiensis Siebold et Zucc. (here after «studied species») were studied. In our study we assessed the growth parameters as well as anatomical and morphological parameters of the studied species corresponding to different provenances of their testing in the south of the Krasnoyarsk and Khabarovsk territories.We determined that the growth rate of trees corresponding to different provenances is determined not only by the inherited characteristics, but also by adaptation. At both experimental regions the offspring of trees corresponding to local provenance are clearly better adapted. Nevertheless, at Krasnoyarsk Krai provenance trials, we found that the phenotypic indicators and degree of preservation of the offspring of two Korean pine corresponding to Obluchensky and Chuguevsky provenances are at the same level as for the local Siberian pine. Tree rings widths have been measured for the Siberian pine corresponding to different provenances at both plantations. We conclude that at the Ermakovskoe plantation there is a positive impact of the environmental conditions on tree-ring width for Korean pine corresponding to different provenances, and in Khabarovsk Krai there is a negative impact of the environmental conditions on tree-ring width for the Siberian pine corresponding to different provenances.

Keywords

• adaptation
• stone pines
• climatypes
• preservation
• needle
• tree ring widths
• Krasnoyarsk Krai
• Khabarovsk Krai