Growth features of apple varieties and forms with natural and compact crown types

Abstract This research explores the compactness of apple varieties and forms with different types crown. Orchards on semi-vigorous rootstocks density high planting systems are cost-effective in modern horticulture. For making such gardens, it is necessary to have trees special compact crown shape. They ensure high-quality fruits production, meeting requirements world standards. To date most perspective for domestic intensive gardening from rich gene pool Selection Genetic Center Federal State Scientific Institution «I. V. Michurin Center» identified. Varieties folk foreign breeding took part creation new genotypes. Apple promising (more than 160 genotypes), including near far abroad selection, were used as materials features studying. We conducted our study by following indicators: tree height, volume, “degree compactness” shoot-forming ability. found that genotypes Sholokhovskoye, Zvezda Artemyeva, 25-7(11), 40-9(8), 36-8(21), 40-9(6), 8-7(72), 40-9(7), 36-8(17), 62-5(140) optimal parameters. recommend their use industrial horticulture further create restrained growth, low-volume crown, a degree varieties.