Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 2
Written by Boyan STALEV, Marko MIHAYLOV, Ludmil ANGELOV, Valentin BAMBALOV, Hristo KOZAROV
In recent years, the adverse effects of climate change on agricultural productivity have been increased drastically. As a result of this change, in the Southwestern wine-growing region, which has a transitional Mediterranean climate, the possibilities for organic grape production are hampered. Productivity and profitability decrease due to uncontrollable events caused by climatic anomalies. Rainfalls of 119 mm, and 218.2 mm, per m2 were recorded during the study period. These rainfalls accumulated during the autumn-winter period in combination with the low temperatures of the atmosphere and the soil create prerequisites for stopping rhizogenesis and suction activity of the root system in the spring, and this reflects on the growth processes of the vines. All this has a direct impact on the accumulation of biomass, which has a direct impact on the duration of the growing season. These components lead to significant changes in the intensity of growth processes in the vine. From here follows the formation of yields with inappropriate technological quality.
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