TY JOUR TI COMPARATIVE CHARACTERISTICS OF PYRUS USSURIENSIS AND PYRUS ROSSICA IN THE ARBORETUM OF KHAKASSIA KW Pyrus rossica KW Pyrus ussuriensis KW steppe zone of Khakassia KW sharply continental climate KW landscaping KW decorative effect KW perspectivity JO Bulletin of KSAU AU Gordeeva, G.N. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University