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Variety traits

Flower diameter

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.

Sources10

Breakdown by crop

Gerbera flower diameter 132 Rose flower diameter 106 Chrysanthemum Inflorescence Diameter 97 Lily flower diameter 88 Phalaenopsis flower diameter 77 Hippeastrum flower diameter 35 Dahlia inflorescence diameter 31 Tulip flower diameter 28 Gladiolus flower diameter 28 Gerbera inflorescence diameter 26 Flower diameter — Garden Chrysanthemum 22 Zantedeschia Spathe Size 15 Flower diameter — Chrysanthemum indicum 11 Anthurium spathe size 9 Dianthus flower diameter 9 Clematis flower diameter 9 Narcissus flower diameter 8 Flower diameter — Anthurium andraeanum 7 Carnation flower diameter 7 Flower diameter — Pelargonium zonale 6 Flower diameter — China aster 5 Iris flower diameter 5 Flower diameter — Impatiens walleriana 4 Kalanchoe flower diameter 4

Found in these crops

Rose 98 Gerbera 89 Lily 83 Moth Orchid 75 Chrysanthemum 63 Amaryllis 33 Tulip 25 Gladiolus 25 Dahlia 22 Barberton daisy 15 Florist's daisy 14 Arum-lily 11

Varieties that feature this in their description

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.

Patricia

Active

Dianthus L. · Carnation

IT
1 record

Monica

Protection expired

Chrysanthemum L. · Chrysanthemum

NL
1 record

Maja

Terminated

Freesia Eckl. ex Klatt · Freesia

SK
1 record

Lima

Active

Hippeastrum Herb. · Amaryllis

NL
1 record

Ibiza

Protection expired

Gerbera L. · Gerbera

NL
1 record

Fozzy

Withdrawn

Gerbera L. · Gerbera

NL
1 record

Jazz

Active

Tulipa L. · Tulip

NL
1 record

Fantastico

Protection expired

Dahlia Cav. · Dahlia

NL
1 record

Ivona

Terminated

Dahlia pinnata Cav. · Garden dahlia

CZ
1 record

Dynamite

Active

Gladiolus L. · Gladiolus

NL
1 record

Futuro

Terminated

Dahlia Cav. · Dahlia

NL
1 record

Diabora

Terminated

Lilium L. · Lily

NL
1 record

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