Performance of wheat (Triticum aestivum) cultivars in the savannah of Roraima, Brazil

Abstract

Brazilian wheat production is concentrated in the South region and does not fully meet the domestic demand for wheat. The Brazilian Cerrado has become an area of great potential for wheat cultivation due to investments in genetic improvement research. Thus, this study aimed to assess the growth and grain production of wheat cultivars in savannah soil in Roraima, Brazil. The experimental design consisted of randomized blocks with four treatments and five replications. The treatments consisted of the following wheat cultivars: TBIO Aton, TBIO Convicto, TBIO Duque, and TBIO Trunfo. The experimental unit was represented by an area of 18 m2 composed of 14 rows of 6 m, spaced at 20 cm, with approximately 100 plants per meter. The following variables were assessed: plant height, number of spikelets per spike, number of grains per spike, number of grains per spikelet, and grain yield. In general, the four cultivars showed good adaptation to the edaphoclimatic conditions of the Roraima savannah. The cultivars TBIO Convicto and TBIO Aton are superior to the others in terms of grain production. The industrial quality of the cultivars was favorable to the use of grains for the flour industry