Variation in parameters related to growth in six genotypes of determinate shrub and indeterminate prostrated beans (Phaseolus vulgaris L.)

A group of six common bean accessions of the Mesoamericano

and Andino genetic groups of the Colombia national germplasm

bank at the Corporación Colombiana de Investigación

Agropecuaria (Corpoica) was evaluated using 41 quantitatives.

The results revealed that five components explained 70.33% of

the total variability of the six accessions and 13 variable were

selected that were essential for differentiating the variation,

including: dry weight of primary leaves, dry weight of trifoliate

leaves, pod dry weight, seed dry weight, number of leaves, leaf

area ratio (LAR), relative growth rate (RGR) and leaf temperature.

Of the two groups of cultivars, the three Meso-American

ones were less efficient in the translocation of assimilates than

the Andean ones because they had a higher number of leaves

and, even with a high LAR, seen as the ratio of assimilation

material per unit of plant material, they did not present the

higher RGR values on average. Specifically, the Meso-American

cultivar Tolima 16, which presented a relatively high seed dry

weight, and the Andean cultivars Mexico 497 and Antioquia

19, which had a relatively low number of leaves, presented a

high pod dry weight and so were highly efficient.