ChileanJAR

The present study was undertaken to evaluate whether variation in morpholiogical traits among 12 bean genotypes were related to yleld. The genotypes were characterized by type I, II and III growth habits. Types I and II were represented by two genotypes of different architectural forms: traditional and archetype. In type III, two late and two early genotypes were included, because there are no archetypes. Determinate genotypes showed fewer days to 50% flowering and to physiological maturity, and Iower seed weights, compared with the indeterminate ones. Types II genotypes outyielded type III; this difference could only be explained by larger number of pods/m² and number of seeds/pod. Archetype I outyielded traditional l Archetype II showed a higher 100 seed weight than traditional II. Type I tended to have a shorter total and linear filling period, compared with type I and II. Archetypes showed a seed filling period similar to the traditional form; on the other hand, late maflirity genotypes tended to have a longer total and linear seed filling period than the early ones. Grain yield was positively correlated with number of pods/m², number of seeds/pod, days to 50% flowering and to physiological maturity, and linear filling rate.