Variety traits

Determinacy — Scarlet Runner Bean

Phaseolus coccineus L.

A trait in which the stem and its branches terminate in a flower cluster, limiting the vegetative growth of the plant. In this species, it is a selectively introduced property intended to eliminate the use of trellises and transition to mechanized harvesting.

In the reference 4 varieties crop Runner bean, where this is mentioned in the description.

For the scarlet runner bean, determinacy is an artificially introduced breeding trait, as the original species is an indeterminate climbing vine. In determinate forms, obtained primarily through interspecific hybridization with the common bean, plant growth is limited by a terminal flower cluster, which ensures a more compact habit.

This trait is classified as a qualitative descriptor, the presence of which is determined by the termination of the main stem with an inflorescence during variety trials. The introduction of determinacy allows for changes in cultivation practices, eliminating the need for supports and enabling the use of mechanized harvesting methods.

General information about the subject — on the page Determinacy.

Sources8

Varieties of Runner bean mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.