Issues:
Sections:
Issue 90
GENERAL BIOLOGY
UDK: 58. 58.006
RESULTS OF INTRODUCTION OF TAXUS BACCATA L. IN DAGHESTAN
OMAROVA Parizat Kurbanalievna
The paper summarizes a long-term experience of introduction of Taxus baccata at the experimental bases (EB) of the Mountain Botanical Garden of the Russian Academy of Sciences in Dahgestan. The information is about biological features of growth and development of twenty-five trees, their reactions to moisture conditions, low temperatures in winter and spring and high temperatures in summer periods. The assessment of winter hardiness is given on a 7-point scale. There was a difference in the survival rate of the trees in the conditions of Inland Daghestan (Tsudakharskaya EB - 1100 msl) and Middle Mountain Daghestan (Gunibskaya EB - 1650 msl). Only 2 of 13 trees, planted in 2010 on the TSEB, survived. The height of each was 1,5 and 1,8 m in 2023. It was associated with both accidental and climatic reasons. On the GEB, the introduction of T. baccata was more successful, more than 25 of the 50 trees planted took root. Biometric indicators at the same time turned out to be different, depending on the conditions of the place of growth and the peculiarities of the biology of the plants themselves from 15 cm to 2,2 m. The results of phenological observations and biomorphological measurements are given for all the survived plants. In addition, it was revealed that plants from the Khunzakh district of Mountainous Daghestan (h - 1500-1600 msl) were less adaptive in contrast to the plants of the Kaitag and Buinaksk districts of Foothill Daghestan. In the future, it will be of interest to study the growth and development of yew plants, the features of formation of pine cones and seeds in the introduced population for to solve both environmental and resource problems. It is shown that the preserved collection of Taxus baccata at the EB of the Mountain Botanical Garden of the Russian Academy of Sciences is sufficiently adapted to the new microclimatic growing conditions and is of considerable scientific and practical interest.
Pages: 31 - 37
Date: 09.06.2023