Variety traits

Cold tolerance of faba beans

Vicia faba L.

Cold tolerance determines the feasibility of winter cultivation of faba beans and their resistance to early spring frosts. The trait is evaluated based on plant survival threshold temperatures, with a critical limit for most varieties being a temperature drop below -12 °C.

In the reference 5 varieties crop Broad bean, where this is mentioned in the description.

For faba beans, cold tolerance and frost resistance are key adaptive factors that can increase yields by up to 47% when transitioning to winter cultivation. Adapted Mediterranean varieties can withstand down to -10 °C, while the most winter-hardy European types tolerate temperature drops down to -15 °C.

Trait evaluation in breeding is conducted through field phenotyping, artificial laboratory freezing methods, and the identification of genetic markers. Temperatures below -12 °C create a high risk of winterkill and crop thinning, and cold shock exposure can damage stem tissues even if the plants survive.

Cold tolerance dictates the choice of cultivation strategy between winter and early spring sowing. Early sowing of spring beans, for example in mid-April, ensures better pod set and productivity, relying on the ability of seedlings to withstand recurrent frosts.

General information about the subject — on the page Cold tolerance.

Sources8

Varieties of Broad 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.