Advances in Agroclimatology

Special Edition of the Author Birthday, August 2022. 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. Rainfall are the most important element and the most significant meteorological attribute in tropical and subtropical areas, where its variable distribution and occurrences of extreme periods between droughts and rainfall in excess, influence crops productions, due the 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.