Vol'vach T. Economic-biological estimation of new apple-trees selection varieties and forms

The object is economic and biological peculiarities of sort and apple tree forms. Aim is to expose the new selection sort and elite forms, which excel on complex of valuable morfobiological parameters and to goods qualities apple tree sort district in Crimea. The methods are stationary field experience, supervision, methods of biological control, methods of biochemical plants research, statistic data processing, economic estimation. Results are for the first time in Crimea is given estimation to new selection apple tree stuff; are explored the passing peculiarities of fenological de-velopment phases, are studied the pollination processes and flowering 20 of per-spective sort and apple tree forms; is definite a frost-resistance degree, relative drought-resistance, steadiness to mealy dew, quick-frutting, crop capacity, keeping duration, goods quality and biochemical composition of fruits of new sort and elite forms; realizable pomological description of new sort and hybrids, is given estimation auto-frutting of six sort, are neat the better sort-pollination for most perspective of them; is given economic growing estimation of new sort and elite forms of apple tree; recommended to selection work 2 of sort and 7 elite forms, is created an uterine-seedling base of perspective sort and hybrids. The sphere of application - fruits production and their keeping, practical selection of new adapted sort.