Productivity of apple introduced cultivars in the Ukraine Western Lisosteppe 

UDC 634.11:631.526.3:631.55

Productivity of apple (Malus domestica Borkh.) introduced cultivars in the Ukraine Western Lisosteppe / Trokhymchuk A.I., Denysyuk O.F. // Sadivnytstvo (Horticulture). Ц 2016. Ц 71. Ц P. 13-21. Ц Refs.: 9. Ц in Ukrainian.

23 introduced apple cultivars were estimated at the age of full fruit - bearing concerning their productivity. Cvs Charavnitsa, Nadzyeiny, PamyatТ Subarovoi, Zaslavskoye, Antei, Syabrina, Alyesya bred in Belarus  and Jonagold, Jonagored, Lodel, Decosta, Elise, Golden Delicious Reinders, Vil`muta and Pilot of the westeuropean group on the root stock 54-118 appeared high productive with an average yield of 44.17 + 2.16 and 34.66 +1.07 kg/tree respectively. The tree trunk diameter proved to be model indicator of yield. On 54-118 the cultivars of the both groups began the full fruit-bearing under a trunk diameter of 5.0-5.9 cm, achieving the optimum yield when this indicator was 10.2 cm and even more.

1 Tabl., 5 Fig.

Key words: apple, cultivar, modeling, productivity, biometric indices, yield.

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