Fruit growing
and viticulture of South Russia

Annotation

The genetic cherry capacity grown up in the Nakhchyvan Autonomous Republic includes 66,7 % of local varieties and 33,3 % of introduced varieties. The purpose of our research is the definition of productivity of cherry forms cultivated in the Nakhchyvan AR taking into account the use of the biometric indexes. The objects of research are twelve cherry forms, and the zoned variety as a control was taken. For determining of indexes of trees productivity the methodical grants are used. It is established that the trees height of the cherry forms which are grown up in the Nakhchyvan is 3,0-5,0 m. The highest rates of volume and area of a crown projection are determined for cherry form of Kotam-2 (70,7 m3 and 16,6 sq.m). For 66,7 % of cherry forms the efficiency coefficient on crown volume is higher, than the coefficient of control variety. The efficiency coefficient on an indicator "the area of a crown projection" for cherry forms were 1,10-3,42 kg/m2. The index of average productivity varies in an interval 14,80-39,65 kg/tree, at 58,3 % of cherry forms this index is higher, than at a control variety (32,45 kg/tree). The highest average productivity is noted at Bulgan-2 cherry (39,65 kg/tree). The research have shown that the optimum of nutrition area for the studied cherry forms is directly proportional to diameter of crown. The index � optimal trees number on hectare � is inversely proportional to an index of the optimal nutrition area of plants. The productivity of 75 % of the studied cherry forms is higher, than the productivity of a control variety. It is specified that the promising forms of cherry with a high of productivity index can be used for restoration of the existing orchards, for the laying of highly productive industrial gardens and for the use in the breeding research.