Genetic-ecological bases of tree of heaven Ailanthus altissima Swingle adaptation in Serbia [Yugoslavia]
2000
Tucovic, A. | Isajev, V. | Sijacic-Nikolic, M. (Univerzitet u Beogradu, Beograd (Yugoslavia). Sumarski fakultet)
The analysis of the nature of interactions "genotype-environment" made it possible to distinguish three biological levels of tree of heaven adaptation, i.e.: 1) ontogenetic, 2) population, and 3) phylogenetic. This paper assesses the variability of morpho-physiological characteristics of tree of heaven in Serbia (Yugoslavia) at the level of populations, trees and half-sib lines. A good phenotype results from long-term selection. The nature of reaction to the effect of selection is not always predictable, as genotypes are capable of various phenotypic reactions, especially regarding adaptability. As the process of adaptations is carried out at different levels of biological organization, specific criteria of adaptation should be determined for each of them.
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