STUDYING THE ROOT SYSTEM OF SOME TURGAI RELICTS
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Description
The article is devoted to the study of the root system of relict species Acer velutinum Boiss., Fraxinus coriariifolia Scheele., Pterocarya pterocarpa (Michx) Kunth. and Fagus orientalis Lipsky from the turgai flora of Azerbaijan. As a result of the experimental work, it was found that the length of the main root of the seedlings in one month was 11.4 cm in A.velutinum, 12.5 cm in F. orientalis, 8.9 cm in P. pterocarpa, and 7,3 cm in F. coriariifolia. In annual A.velutinum saplings, the height of the aboveground part was 51.3 cm, the length of the main root is 28.5 cm, the height of the aboveground part of F. orientalis is 28.2 cm, the length of the main root is 27.5 cm, the height of the aboveground part P.pterocarpa - 24.8 cm, the length of the main root - 18.7 cm and the height of the aboveground part of F. coriariifolia - 35.7 cm, the length of the main root - 15.4 cm. The height of two-year-old seedlings of the studied species was 44.8-103,1 cm, and the length of the main roots is 26.5-53.2 cm.The length of the main root of three-year-old seedlings is 39.8-85.9 cm, the length of 12-35 lateral roots of the first order is 8-28 cm, and set of lateral roots of the second order. Observations have shown that the bulk of the normally developing root system is located at a depth of 9-27 cm. Thus, relict species Acer velutinum Boiss., Fraxinus coriariifolia Scheele., Pterocarya pterocarpa (Michx) Kunth. and Fagus orientalis Lipsky are promising for cultivation in Apsheron.