Variety traits

Verbena tolerance

Verbena L.

Verbena tolerance is a qualitative characteristic of resistance to biotic and abiotic stressors, defining the plant's ability to maintain its ornamental value and viability under unfavorable conditions.

In the reference 14 varieties crop Vervain, where this is mentioned in the description.

In verbena breeding and agronomy, tolerance primarily reflects resistance to powdery mildew, which helps prevent leaf yellowing and weakening of the plant. Tolerance to heat and drought is also distinguished, ensuring the maintenance of flowering and plant habit under summer heat conditions.

There is no single universally accepted scale for measuring this trait; therefore, assessment is conducted through comparative trials with control varieties or scoring systems. In specialized studies, the expression analysis of the VbWRKY32 gene and stomatal conductance indicators may be used to determine cold hardiness.

General information about the subject — on the page Tolerance.

Sources8

Varieties of Vervain 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.