SHOOT LOAD EFFECT ON GRAPEVINE PRODUCTIVITY AND VIGOR

The research was carried out in order to determine the effect of number shoots structure bushes on their fruitfulness and annual growth, plant yield grape quality. work using generally accepted methods viticulture 2019-2021 Rostov region. scheme experiment involved study following norms for loading with shoots: 30, 35, 40, 45 pcs/bush. own root plantations phylloxera-tolerant variety Pervenets Magarach, planted 1986. feeding area one is 4.5 m2 (planting pattern 3 m × 1.5 m), shape a two-sided horizontal cordon spare sleeve restoration knot (semi-covering). According (95 94%), variants load 30 35 shoots/bush, respectively, were identified; fruiting coefficient (K1) both 1.69. size crop, variant per bush selected - 17.0 t/ha highest quality berry juice (mass concentration sugars 17.9 g/100 cm3, titratable acids 8.4 g/dm2. In change content according experiment, no regularity revealed, difference value this indicator not significant. terms productivity vegetative shoot, plants noted 40 (178 g).The length decreased an increase from 90 4 cm 82.2 maximum (45 shoots). No diameter shoots, significant found between options. proportion shoot ripening had inverse relationship numbers plant.