Variety traits

Flower diameter — Garden Chrysanthemum

Chrysanthemum x morifolium Ramat.

The diameter of the capitulum (flower head) of the garden chrysanthemum is a key quantitative trait that classifies cultivars into groups ranging from Santini to large-flowered types and determines the intensity of agronomic practices.

In the reference 22 varieties crop Florist's daisy, where this is mentioned in the description.

In accordance with international UPOV guidelines, the diameter of the inflorescence is measured as the maximum linear dimension at the full flowering stage. Based on this parameter, chrysanthemums are divided into several groups: Santini (2–4 cm), small-flowered (3–10 cm), medium-flowered (10–19 cm), and large-flowered (12–30 cm).

This trait directly influences cultivation technology: to achieve maximum size in large-flowered varieties, disbudding is employed by removing lateral buds. The size of the inflorescence depends on the light regime during the period of floral bud initiation, as well as on humidity levels and balanced mineral nutrition, the deficiency of which leads to smaller flower size.

General information about the subject — on the page Flower diameter.

Sources8

Varieties of Florist's daisy 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.