Variety traits
Flower diameter is a morphological trait of a variety used to assess ornamental quality, commercial value, and plant identification during variety testing.
Mentioned in descriptions 2 318 varieties reference book.
Flower diameter is an important morphological indicator that characterizes the varietal traits of a plant and its aesthetic value. In the process of varietal identification, this trait is recorded in centimeters or millimeters using measuring rulers during the mass flowering phase, with measurements taken on several plants at different points of the plot to obtain reliable average data.
The value of this indicator is determined by the genetic potential of the variety, although its actual realization directly depends on external conditions, including light, temperature, humidity, and the level of mineral nutrition. In some crops, an inverse correlation is observed between the total number of flowers on an inflorescence and their size, which is linked to the effect of intraspecific competition for nutrients.
During variety trials, flower diameter parameters are evaluated in comparison with the generally accepted standard for a specific species, as there are no absolute quality criteria. Depending on the methodology, scoring scales may be used where flower size correlates with a gradation of ornamental value, and the values from the official description of the breeding achievement are attained only when optimal agricultural practices are followed.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Chrysanthemum x morifolium Ramat. · Florist's daisy
Zavidova Liudmyla Hnativna, Horobets Vasyl Fedorovych,
Tulipa L. · Tulip
G. Buis Bloembollen B.V.
Phalaenopsis Bl. · Moth Orchid
Bremkens Orchideen
Iris L. · Iris
Maveridge Licensing B.V./Juno
Lilium L. · Lily
G.A. Verdegaal en Zn. Export B.V.
Hippeastrum Herb. · Amaryllis
T. VAN NIEUWKERK AMARYLLIS B.V.
Chrysanthemum x morifolium Ramat. · Florist's daisy
BVBA Pieters Joseph and Luc.
Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy
Piotr Kosowski
Tulipa L. · Tulip
G. Buis Bloembollen B.V.
Chrysanthemum indicum L. · Indian chrysanthemum
Productions Challet Herault SAS (FR)
Narcissus L. · Daffodil
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Lilium L. · Lily
Mak Breeding Rights B.V.
Narcissus L. · Daffodil
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Phalaenopsis Bl. · Moth Orchid
Floricultura B.V.
Phalaenopsis Bl. · Moth Orchid
Bremkens Orchideen
Rosa L. · Rose
Andre ARNAUD (FR)
Lilium L. · Lily
Mak Breeding Rights B.V.
Petunia x hybrida hort. ex E. Vilm. · Garden petunia
Hodowla i Nasiennictwo Roślin Ogrodniczych Waganiec sp. z o.o.
Callistephus chinensis (L.) Nees · China aster
PlantiCo Hodowla i Nasiennictwo Ogrodnicze Swietoslaw sp. z o.o.
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Callistephus chinensis (L.) Nees · China aster
Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.
Phalaenopsis Bl. · Moth Orchid
I.+A. Hark Orchideen GmbH & Co.KG
Chrysanthemum L. · Chrysanthemum
Luc Pieters
Dianthus L. · Carnation
P.Kooij & Zonen B.V.