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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.

POULREN018

Terminated

Rosa L. · Rose

Poulsen Roser A/S

1 record

Pole Ice

Terminated

Gerbera L. · Gerbera

Holstein Select B.V.

1 record

PHALHUSXLA

Active

Phalaenopsis Bl. · Moth Orchid

Anthura B.V.

1 record

Orient Express

Terminated

Zantedeschia Spreng. · Arum-lily

Boeket Handelmaatschappij B.V.

1 record

Monroe

Withdrawn

Gerbera L. · Gerbera

FLORIST HOLLAND B.V.

1 record

Olawa Red

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

1 record

NIRPINOSH

Terminated

Rosa L. · Rose

Alessandro Ghione

1 record

Molara

Withdrawn

Gerbera L. · Gerbera

FLORIST HOLLAND B.V.

1 record

Mistique

Terminated

Hippeastrum Herb. · Amaryllis

RUDOLPH LEONARDUS MARIA BERBEE

1 record

Matchlight

Withdrawn

Phalaenopsis Bl. · Moth Orchid

René Schoone

1 record

Ocean Bird

Terminated

Dahlia Cav. · Dahlia

Firma van der Vlugt V.O.F.

1 record

Macy

Terminated

Gerbera L. · Gerbera

FLORIST HOLLAND B.V.

1 record

Lanmaine

Terminated

Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine

D.H.M Innovation S.A.S.

1 record

MVNE172

Active

Echinacea purpurea x Echinacea tennesseensis

Marco van Noort Breeding B.V.

1 record

Lanwashington

Terminated

Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine

D.H.M Innovation S.A.S.

1 record

Ladies First

Terminated

Gerbera L. · Gerbera

FLORIST HOLLAND B.V.

1 record

JHE00300

Active

Helleborus x hybridus hort. ex Voss · Lenten rose

Microflor N.V.

1 record

IPK107416

Active

Rosa L. · Rose

Interplant Roses B.V

1 record

Katja

Terminated

Phlox paniculata L. · Garden phlox

Geerlings-Meyer

1 record

Joyride

Withdrawn

Gerbera L. · Gerbera

FLORIST HOLLAND B.V.

1 record

Jaimaica

Terminated

Dahlia Cav. · Dahlia

JASK HOLDING APS

1 record

Hilfmadi

Terminated

Gerbera L. · Gerbera

HilverdaFlorist B.V.

1 record

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