DESEMPENHO PRODUTIVO DE GENÓTIPOS DE ARROZ EM ECOSSISTEMAS E CORRELAÇÃO COM IMAGENS AÉREAS NO MUNICÍPIO DE MARI - PB

Abstract

In Brazil, rice is a well-developed cereal, giving the country the title of largest cereal producer in South America. Brazil plans to grow during the 2017/18 crop, 1,966.7 million hectares of rice, of which 72 , 8% of irrigated rice, with an average yield of 7,514 kg / ha, compared to a low yield of 2,378 kg / ha in dry rice land. Rice production in Paraíba is well below the demand for the product and, despite having a high potential, in terms of floodplain, topography and water sources for irrigation. The work was conducted in the municipality of Mari - Paraíba, in two localities, one in the dry farming system, located in the traditional community of Açude Grande, coordinates 9221499.22 S, 246739.15 O, altitude of 133 m. The second site allows the irrigated system for the experiment, where it is located in the Tiradentes settlement, at coordinates 9226721.67 S, 247364.83 O, with an altitude of 141 m. For this experiment the irrigation. The execution of the field experiment occurred during the period from May / 2018 to August / 2018. The cultivars BRS-emerald, BRS-nugget and BRS-sertaneja presented higher, being these indicated for planting in irrigated system, for planting in high lands the 3 cultivars presented previously plus the variety Creole type A demonstrate qualification for productivities.