10 May Canopy microclimate and its influence on quality of grapes and wine
केनोपी की शुक्ष्म जलवायु का अंगूर और वाईन की गुणवत्ता पर प्रभाव Many of the earlier observations among several viticulture scientists all over the world indicated a strong effect of climate on both yield and quality of grapes. To fully understand these effects, we need to differentiate between three levels of the climate based on the ideas of the famous German climatologist, Geiger. Macroclimate (Regional climate): This is the climate of a particular region, and a weather stations located in that region usually describe the general pattern of the macroclimate. Mesoclimate (Site climate): The mesoclimate of a particular vineyard varies from macroclimate of region because of differences in elevation, slope, aspect or distance from moderating factors like lakes or oceans. Mesoclimate can be very important for success of vineyard especially where climatic factors are limiting. Microclimate (Canopy climate): It is the climate within and immediately surrounding the vine canopy. Measurement of climate shows differences between and within canopy values and those immediately above it. Microclimate differences can occur over a few centimeters also. Important microclimatic factors Some of the important microclimatic factors, which determine the grape quality, are temperature prevailing in the climate, sunlight (both quality and quantity), humidity, wind speed and evaporation. Although most of these factors major role in producing good quality grapes (for table purpose) and...