Avaliação agronômica e nutricional de cinco genótipos de milheto

Abstract

The experiment was established at Embrapa Milho e Sorgo in –Sete LagoasMG, in order to evaluate the agronomic and nutritional traits of five millet genotypes. The planting was carried out in randomized blocks with five plots (blocks), each genotype was a treatment totalizing 25 experimental plots. For the evaluation of agronomic and nutritional traits the medium of the first and second cuts was made. The evaluated agronomic traits were high, green matter yield, dry matter yield and number of plants/ha. For a nutritional analysis of the whole plant were determined contents of dry matter, crude protein, neutral detergent fiber, acid detergent fiber, cellulose, hemicellulose, lignin, ash, ether extract, neutral detergent unavailable nitrogen, acid detergent unavailable nitrogen, non-fibrous carbohydrates and total carbohydrates. The highest height was observed in the CMS 01 genotype (1.82) and the lowest one in B Sauna genotype (1.33). The lowest yields were: 3.00, 3.61 and 3.64 t ha-1 for B Sauna, ADR 500 and BRS 1501 genotypes, respectively. The highest content of DM was of CMS 01 genotype (18.22%) and CMS 03 genotype (18.02%), and the lowest one was of Sauna B genotype (11.92%). Concerning to values of ADF, the lowest percentage was found in genotype Sauna B. As for the ADIN, the BRS 1501 genotype presented the lowest value (0.80%). The genotypes that presented the highest content of lignin were CMS 03 and BRS 1501, and the average was 3.52%. There was no statistical difference (p>0.05) for the other variables, crude protein, neutral detergent fiber, neutral detergent insoluble nitrogen, ether extract, hemicellulose, cellulose, non-fibrous carbohydrate and total carbohydrate.