IMPACT OF FORMING TECHNIQUES OF TWO-YEAR SEEDLINGS OF COLUMNAR APPLE TREE VARIETIES ON THE GROWTH AND DEVELOPMENT RATES

The studies were carried out in 2019–2021 the Department of nursery stock RUE “Institute Fruit Growing”. article reflects results studying biological characteristics growth, development and formation vegetative reproductive structures various types seedlings columnar apple varieties. For first time conditions found Belarus features varieties have been set out.
 An effective method limiting growth force shoots stimulating laying fruit
 buds is use Regalis regulator: once for Girlyanda Sozvezdie varieties, twice Valuta variety.
 When substance applied, length, depending on variety, 41.2–69.1 % less, height seedling 8–21.3 less compared to variant without treatment.