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Selection improvement of apple tree assortment for southern horticulture
https://doi.org/10.31676/0235-2591-2023-1-18-23
Abstract
The paper presents the results of a long-term test of eight scab-immune apple varieties of domestic and foreign breeding under the conditions of North Caucasus region of Russia. The study was aimed at improving the assortment of apple trees in the Southern region of Russia on the basis of a comprehensive assessment of promising varieties of domestic and foreign breeding. The study objects included scab-immune apple varieties (Malus x domestica Borkh.) of various ecological and genetic origin: Carmen, Nika, Orphey and Margo (North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making together with Nationwide Research Institute for Horticultural Breeding, Russia), Mikhsan and Zarya Stavropoliya (Stavropol Experimental Horticulture Station together with Nationwide Research Institute for Horticultural Breeding, Russia), Modi (Italy), Florina (France). The common and up-to-date breeding programs and techniques developed with the assistance of Nationwide Research Institute for Horticultural Breeding were applied. Based on the long-term results of ecological testing of new scab-immune apple varieties of different origins under the conditions of the Republic of North Ossetia-Alania and Krasnodar Krai, the most valuable varieties for industrial use and for breeding process were identified. The following varieties were identified as promising for industrial use and breeding: varieties with a late flowering time – Margo and Orphey; varieties with a high average flowering score (4.5–5.0 points): Carmen, Modi, Orphey, Nika, Florina, Margo. It was found that all investigated varieties of apple trees can be attributed to the annual fruit-bearing; the periodicity of fruiting varied within 22.6–28.8 %. In 2020, in the conditions of North Ossetia-Alania the maximum yield was observed for the following scab-immune varieties: Margo (24.1 t/ha) and Modi (25.2 t/ha) on rootstock СK2; Mikhsan (19.2 t/ha) and Nika (20.6 t/ha) on rootstock MM106. In order to improve the assortment of the Southern region of Russia and to create modern intensive orchards, new varieties of apple of domestic breeding were recommended: Margo, Nika, Orphey and Modi (foreign breeding), which have high productivity, immunity to scab (based on Rvi-6 gene), better commerciality and a long period of fruit storage.
About the Authors
E. V. Ulyanovskaya
North Caucasian Federal Scientifi c Center of Horticulture, Viticulture, Wine-making
Russian Federation
Russian Federation
Ulyanovskaya E. V. - Dr. Sci (Agric.), Head of the Laboratory of variety research and selection of garden crops
K. M. Atabiev
SPK «De-Gusto»
Russian Federation
Russian Federation
Atabiev K. M. - PhD (Agric.), Chief Agronomist-Gardener
Elkhotovo, North Ossetia-Alania
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Review
For citations:
Ulyanovskaya E.V., Atabiev K.M. Selection improvement of apple tree assortment for southern horticulture. Horticulture and viticulture. 2023;(1):18-23. (In Russ.) https://doi.org/10.31676/0235-2591-2023-1-18-23
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