CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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Kuza P.A. Specific Features of Generative Oak Progeny Growth in Moldova // Forest Science (Lesovedenie). 2010. No 1. P. 31-37 (in Russian). The growth rate of Quercus robur L. saplings obtained from the germinated acorns sowed in autumn and spring was investigated- The growth rate of descendents obtained from the spring sowed acorns was revealed to be much higher than the growth of those obtained from the autumn sowed ones. The differences in their growth rates were significant and of certain practical value. The importance of collecting the acorns formed under conditions that assure the cross-pollination of trees (from polymorphic population) in substantiated. Samplings obtained from this population grew much faster as compared to those obtained after self-pollination (in consanguine population). This phenomenon could be a consequence of partial splitting of heterozygotes and accumulation of homozygotes in descendents after self-pollination -a factor affecting the growth of the genotypes obtained. In the consanguine population, a high level of genotype variation was observed, which was accompanied with a low levels of viability and growth energy. The slow growth of oak trees, especially during the fist years of life, creates some difficulties in their maintenance. Thus, cross-pollination and spring sawing of acorns are important factors that should be taken into account for the production of viable and vigor descendents of Quercus robur. Oak, saplings, polymorphic population, consanguine population, growth rate |
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