Abstract
Sorghum is a plant of tropical origin, of short days and with high photosynthetic rates, requiring a warm climate in order to express its production potential. The objective is to evaluate the agroclimatic aptitude of the cultivation of sorghum that allows to visualize or identify its productive potential in the state of Pernambuco. The pluviometric data were acquired from the Northeast Development Superintendence and the Pernambuco water and climate agency, the temperature data were from the National Institute of Meteorology and estimated by the estima_T software between the period 1960-2019. In the region of the high sertão and sertão there is moderate fitness due to excess water. In the agreste region full fitness was obtained with prolonged rainy season. In the Zona da Mata and Litoral regions, fitness is unrestricted. The study was carried out using information from the rainy season and without the aid of irrigation, that is, taking into account the rainfed planting.
Highlights
Sorghum is a plant of tropical origin, of short days and with high photosynthetic rates, requiring a warm climate in order to express its production potential
Sorghum is a plant of tropical origin, of short days and with high photosynthetic rates, requiring a warm climate in order to express its production potential, according to the Ministry of Agriculture, Livestock and Supply (MAPA, 2014)
In late sowing and in crops after a summer harvest, sorghum productivity is greatly affected by the rainfall regime, solar radiation limitations and is influenced by low temperatures during the end of the cycle (MAPA, 2014)
Summary
Sorghum is a plant of tropical origin, of short days and with high photosynthetic rates, requiring a warm climate in order to express its production potential, according to the Ministry of Agriculture, Livestock and Supply (MAPA, 2014). In this way, the increase in luminous intensity implies greater productivity, whenever other conditions are favorable according to the Brazilian Agricultural Research Corporation (EMBRAPA, 2012). Medeiros & Duarte (2020) studied climatic factors, water balance and climatic classification for the cultivation of cashew versus sorghum using the method of Thornthwaite and Thorthwaite & Mather (1948, 1955), for the municipality of Recife They concluded that the classification technique and climatic aptitudes using the water deficiency index for the municipality of Recife did not provide subsidies for high reliability.
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