Performance of food-type soybean genotypes and their possibility for adaptation to Brazilian latitudes

This work was conducted at the Universidade Estadual de Londrina (UEL), in Londrina, State of Parana, Brazil, with the goal to study food-type soybean (Glycine max (L.) Merrill) genotypes performance for use in cultivation or crosses. A total of 104 genotypes were analyzed: 88 were food-type with la rge seeds, eight were food-type with small seeds, and eight-grain types ada pted cultivars. The experimental plan was in randomized complete block desi gn with four replications, and 12 traits of agronomic importance were consi dered. Genetic diversity was observed in the food-type germplasm. There wer e some genotypes with high yield adapted to a normal period of sowing. Soyb ean genetic improvement programs for direct human consumption in Brazil, ei ther by means of Asiatic pure lines or by means of the incorporation of gen es for late flowering in short-day conditions in this lines is highly viabl e.