Growth characteristics of own-rooted pear (Pyrus) plants of the Spakusa cultivar under conditions of the Gomel Region

Abstract

For the first time, the biological characteristics of growth and development of own-rooted pear trees of the Spakusa cultivar, propagated via in vitro culture, were studied under the conditions of the Gomel Region with two planting schemes in a young orchard.
Phenological development of own-rooted pear trees in the second year after planting progressed more slowly during periods of cold weather and, conversely, accelerated during warm and sunny conditions. The following phenophases of vegetative bud development were recorded: bud swelling – early April (first ten-day period); bud break – late April (first ten-day period); formation of the first lower leaves – mid-April (second ten-day period); initial shoot growth – one ten-day period later; end of shoot elongation – late first ten-day period of August.
It was found that during the first two years after planting, there were no statistically significant differences in the growth and development of Spakusa own-rooted pear trees between the two planting schemes used in the young orchard.