THE EFFECT OF THE AGROMETEOROLOGICAL CONDITIONS OD THE VEGETATING PERIOD ON THE YIELD FORMATION IN THE GRAPE VARIETY WHITE MUSCAT CULTIVATED ON THE SOUTH COAST OF THE CRIMEA
The effect of altitude above sea level on the agrobiological characteristics of the grape variety White Muscat grown under the conditions of the South Coast of the Crimea was established. Earlier budbreak and floral initiation were recorded in vineyards located at the altitude of 312 asl, the difference being 4-5 days. Budbreak and floral initiation were associated with the average effective heat sums of 122 <sup>о</sup>С and 859 <sup>о</sup>С, respectively. The numerical values of the fruitfulness coefficient of central buds in the medium portion of the shoots were higher in the site at 120 asl relative to those in the site at 312 m asl. The effective heat sum of the air higher than 20 <sup>о</sup>С during the ripening period of grapevine (July-September) was 1527-2025 <sup>о</sup>С and led to quality materials for dessert and liqueur wines with sugar mass concentrations of 285-290 g/dm <sup>3</sup> in the site at 102 m asl.