Uman National University | today: 12/25/2025

Productivity of clonal pear - quince rootstock Q-Eline in the Right-Bank Forest-Steppe of Ukraine

Author(s) Butsyk R. M., Candidate of Agricultural Sciences, ,
Polunina O. V., , , Uman National University of Horticulture
Chaploutskyi A.M., , , Uman National University of Horticulture
Кучер І. О., , ,
Category The Agronomy
year 2025 issue Issue 107 part 1
pages 410-420 index UDK 634.13:631.541.1:631.559(477.4)
DOI 10.32782/2415-8240-2025-107-1-410-420 (Link)
Abstract The article presents the results of a prior study of quince Q-Eline as a clonal, weak-growing rootstock for pear on grey forest soils of the Right-Bank Forest-Steppe of Ukraine. Obtained materials indicate the high productivity of this rootstock in a horizontal-type mother plant, connected with an increased yield of high-quality and well-rooted layers. In general, this rootstock is characterized by a small diameter of layers, which is a key indicator in their sorting. Therefore, the share of non-standard layers in the potential productivity of the mother plant reaches 30%. The number of overgrown layers with the age of the mother plant decreases to 10%. At the same time, the yield of layers of the first and second grades is practically balanced – 33% and 27%, respectively. On the whole, the yield of standard layers of quince Q-Eline, suitable for pear grafting, during the productive period of the mother plant reaches 52 pcs. per linear meter, which in terms of per hectare is about 369.2 thousand pcs/ha. With regard to growth force in the mother plant, on grey forest soil, Q-Eline grows more intensively than quince C and has higher resistance to climatic factors, which is accompanied by practically complete plant safety. In fruit tree nursery conditions, the Q-Eline rootstock has good compatibility with experimental pear varieties and provides a high yield of high-quality planting material. In orchard conditions, varietal rootstock combinations of pear with Q-Eline show a rapid entry of trees into the fruiting season and an intensive increase in their generative productivity. The development of planting density in four-year-old trees reaches 68%, which may be an indicator for greater densification of plantings. The signs of incomplete compatibility with some pear varieties connecting with deviations from natural physiological development, which requires in-depth study, are among the problematic characteristics of the rootstock. On the microbiologically rich soils of the Right-Bank Forest-Steppe of Ukraine, the Q-Eline quince, as a rootstock for pear, should be studied for resistance to root system diseases.
Key words pear, rootstocks, saplings, yield, variety quality, productivity, generative buds, compatibility, resistance
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