ChileanJAR

In a split plot design with four replicates, the performance of five Vigna unguiculata varieties (V. white, V. black, Habana 82, Viñales 144A and INIFAT 93), and a variety of V. radiata (V. green) were evaluated for the production of grain meal, forage (flowering) meal and integral meal (plants with milky pods). Their bromatological composition and anti-nutritional factors (tannins and trypsin inhibitors) were determined. In forage meals, the V. white variety reached the highest (P < 0.01) yields (4.83 t DM ha^-1 with 17.01% PB), followed by Habana 82 (3.92 t DM ha^-1 with 20.05% CP). In integral meals, Habana 82 exhibited the highest values (6.32 t DM ha^-1 with 17.36% PB), followed by the V. white (5.67 t DM ha^-1 with 15.16% CP). In grain meals, the V. green variety had the lowest (P < 0.01) yield (0.51 t ha^-1), followed by the white variety (0.93 t ha-1), while the rest reached more than one t ha-1, without significant differences. The grain meals were characterized by their high (P < 0.001) protein content, ranging from 24.78% in the green variety to 28.28% in Habana 82, and for their low (P < 0.01) content of crude fiber (5.36% - 7.21%) and anti-nutritional factors (0.24 - 0.37% tannins and 0.90 - 1.35 mg g^-1 of trypsin inhibitors). In terms of agronomic yields, the most promising varieties in forage and integral meal production were V. white and Habana 82, and in grain production the INIFAT 93 variety had a grouped maturity and a shorter agronomic cycle.