VARIABILITY OF BIOMETRIC CHARACTERISTICS OF SILVER BIRCH SEEDLINGS GROWN IN CONTAINERS WITH DIFFERENT VOLUME

UDC 630*232.329.6

 

Tatun Yauheni Uladzimiravich − PhD student, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: evgeniy.tatun@mail.ru

Nosnikov Vadim Valer’evich − PhD (Agriculture), Associate Professor, Assistant Professor of the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nosnikov@belstu.by

 

DOI: https://doi.org/10.52065/2519-402X-2024-282-9.

 

Key words: silver birch, seedlings, containers, cell volume, biometric characteristics.

For citation: Tatun Ya. U., Nosnikov V. V. Variability of biometric characteristics of silver birch seedlings grown in containers with different volume. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 2 (282), pp. 76–81 (In Russian). DOI: 10.52065/2519-402X-2024-282-9.

Abstract

The wide range of cell volumes used in different countries and the fact of the limiting influence of cell volume on the parameters of silver birch seedlings raise questions about the applicability of the containers most widely used in our republic for the production of seedlings of this species. The purpose of our study is to establish the degree of influence on the biometric parameters of silver birch seedlings grown in containers by the volume of containers cells used for cultivation. Based on the results of the study, it was established that the cell volumes of the containers affect the height of seedlings, root-collar diameter, the dry weight of seedlings, the yield of standard seedlings, the safety of seedlings, the growth rate. The seedlings obtained in containers with a volume of 275 cm3 had the greatest biometric characteristics, average height of seedlings was 441.5 mm, average root-collar diameter was 5.3 mm, average dry weight of seedlings was 4.25 g, which was higher than the seedlings obtained in containers with a volume of 128 and 115 cm3 in average height of seedlings by 19 and 28%, in average rootcollar diameter by 19.6 and 23.5%, in average dry weight of seedlings by 47 and 55%, respectively. The shoot : root dry mass ratio was in the range of 1.25–1.44, which is optimal for all experimental variants. The highest yield of standard seedlings was in containers with a volume of 275 cm3 – 69%, while the lowest yield was in the experimental type of containers with a volume of 115 cm3 – 27%. When measuring the height of silver birch seedlings at different stages of growth, direct dependency of growth rates on the volume of containers was revealed, but the cessation of growth processes did not depend on the volume of containers.

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15.03.2024