Variety traits

Double-flowering in China aster

Callistephus chinensis (L.) Nees

Double-flowering in China aster is a breeding trait manifested by the transformation of tubular disc florets into ray florets, which determines the ornamental value and seed productivity of a cultivar.

In the reference 24 varieties crop China aster, where this is mentioned in the description.

The trait characterizes the inflorescence structure and is classified by the degree of expression: from single forms with an open disc to fully double forms, where tubular florets are almost completely replaced by ray florets. Evaluation of double-flowering is carried out visually during the mass flowering phase in accordance with international variety testing protocols.

A high degree of double-flowering positively influences the ornamental quality and marketability of the crop, but negatively affects seed productivity due to the reduction of reproductive organs. During the growing season, the stability of this trait depends on environmental conditions: unfavorable factors, such as water deficit or high temperatures, can lead to a decrease in double-flowering and partial exposure of the inflorescence center.

General information about the subject — on the page Double flowering / Reversion.

Sources7

Varieties of China aster 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.