For tepary beans, the timing of growth stage progressions through the season is dependent on both the variety and environmental cues such as day length, or temperature. The tepary bean growing degree day model used to predict anthesis, or timing of flowering.

Calculating Growing Degree Days

For different varieties of tepary beans, there are slightly different growing degree day models, which can be used to predict anthesis, or timing of flowering. For these models, the biofix should be set when 50% seedling emergence is observed. 50% Anthesis timing can be calculated using the table below, or using the Pest Prophet app.

Learn More:

Scully, B., and J. G. Waines 1988. Ontogeny and yield response of common and tepary beans to temperature. Agron. J. 80: 921-925