GROWTH AND DEVELOPMENT OF HAZELNUT PLANTS IN VARIOUS STRUCTURES OF PLANTATIONS BEFORE FRUITTING

Abstract

The article presents the results of research, conducted in 2020–2021 in the commercial hazelnut garden planted in 2018 by LLC “Vyazovetsky Sad”, Molodechno district, Minsk region. The purpose of the research is to evaluate the growth and development of young hazelnut plants of the Barcelona and Catalan varieties planted according to two schemes placement – 5.0 × 3.5 m (570 plants/ha) and 5.0 × 3.0 m (666 plants/ha). Biometric parameters of plant growth and development depending on the placement pattern which are height, canopy width along the row and canopy width across the row, area of the horizontal projection of the canopy, leaf surface area – in the Barcelona and Catalan varieties from the third or fourth year after planting the garden did not vary considerably, but differed reliably depending on the biological characteristics of the varieties themselves.
 The Catalan variety has turned out to be more productive, the total yield of which, with a placement scheme of 5.0 ×
 3.5 m, reached 1.57 c/ha, that is 14.5 % higher than the yield of the Barcelona variety (1.37 c/ha), and with the placement
 scheme 5.0 × 3.0 m reached 2.13 c/ha, or 47.9 % higher than the yield of the Barcelona variety (1.44 c/ha).