Agriculture & Agroclimatology

Although the agricultural technological advances, the climate is still the most important variable in crops production. The most significant natural variables in the production process come from the climate and its variability remains a challenge and is the main cause of oscillations in agricultural productivity. The climate is responsible for 80 % of the variability of world crop production (CARAMORI et al., 2008; FAO, 2014; CARAMORI et al., 2016). The most significant natural variables in the production process, regardless of the mode of production come from the climate and are considered inputs and the key source of energy in the terrestrial system (SANT'ANNA NETO, 2015). Water affects all the physiological processes that occur in the plant, such as root absorption, nutrient transport, thermoregulation and hydration, essential to maintain the structure and the plant cellular activity (TAIZ; ZEIGER, 2009).