Yield structure in spring forms of F2 population from spring x winter wheat crosses (T. aestivum)

agronomic characters breeding cereales cereals croisement crops cruzamiento cultivos cultivos de grano economic plants grain crops plant habit plantas plante plante de culture plants port de la plante productividad productivity profitability rendement rendimiento rentabilidad spring wheat trigo trigo de invierno trigo de primavera wheats winter wheat yields