Didi Carmine
ActiveImpatiens walleriana Hook. f. · Busy Lizzie
Jonkers, Hanneke
Variety traits
Double flowering / Reversion
Reversion virus
In crop production, the term refers to two distinct concepts: a decorative trait characterized by an increased number of petals in flowers, or a dangerous viral disease of blackcurrants that causes sterility.
Mentioned in descriptions 16 231 varieties reference book.
In ornamental horticulture, double flowering is a varietal characteristic expressed by an increased number of petals in a flower to enhance aesthetic appeal. In the case of blackcurrants, double flowering, or reversion, manifests as a viral disease in which flowers are deformed into purple outgrowths, leaves lose their shape, and the plant becomes sterile.
This trait is assessed as a qualitative phenotypic indicator. In ornamental crops, double flowering is recorded during variety trials either visually or by using scoring systems for ornamental quality. Regarding currants, double flowering is considered a critical symptom, the presence of which requires phytosanitary culling of infected specimens.
Resistance of a variety to pathological reversion is determined by the genetic ability to withstand the virus and its vector, the currant bud mite. When choosing planting material for a garden, preference should be given to varieties with proven genetic resistance, as there are no numerical units of measurement for this trait.
Breakdown by crop
Rose Double-flowering
1 377
Tulip double flowering
375
Chrysanthemum double-flowering
344
Carnation Double Flowering
336
Double-flowered Lily
164
Carnation double-floweredness
163
Double-flowering — Pelargonium zonale
162
Gerbera double-flowering
142
Dahlia double-flowering
133
Double-flowering in Begonia elatior
90
Double-flowering in Hydrangea macrophylla
88
Double-flowering in Kalanchoe blossfeldiana
77
Pelargonium double flowering
73
Hippeastrum Double-flowering
68
Double-flowering — Pelargonium peltatum
64
Double-flowering in Garden Chrysanthemum
60
Clematis double flowering
59
Azalea double-flowering
56
Double flowers in Impatiens walleriana
54
Freesia double flowers
48
Kalanchoe double flowering
41
Rhododendron doubleness
38
Double-flowering — Tuberous Begonia
38
Double-flowering — Chrysanthemum indicum
32
Found in these crops
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.
Dekcavallini
TerminatedChrysanthemum L. · Chrysanthemum
Cornelis W. Dekker
Beman Rosa
Protection expiredBegonia x hiemalis Fotsch · Elatior Begonia
WAGNER KONRAD
Dazzling Yonew York
TerminatedChrysanthemum L. · Chrysanthemum
Wendy R Bergman
Datredive
ActiveDahlia Cav. · Dahlia
Nielsen Rune Harboe
Delirossano
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
BBREDBADA
ActiveBegonia x hiemalis Fotsch · Elatior Begonia
TOBIAS GUNTER DUMMEN
Barticel
ActiveDianthus caryophyllus L. · Carnation
Emilio Cano
Delfluoros
ActiveRosa L. · Rose
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Dekwhatsapp
Application submittedChrysanthemum L. · Chrysanthemum
Cornelis W. Dekker
Bardibua
ActiveDianthus caryophyllus L. · Carnation
DONATO DI GIORGIO
Dekbretagne
TerminatedChrysanthemum L. · Chrysanthemum
Cornelis W. Dekker
Balgalbrise
Activehybrids between Pelargonium peltatum and Pelargonium zonale · Ivy-leaved geranium
Trees Scott C.|Shell Beach, CA, US
Dangysha
TerminatedGypsophila L. · Baby's breath
Gavriel Danziger
Bassey
TerminatedKalanchoe blossfeldiana Poelln. · Flaming Katy
Ike Vlielander
Barphantom
ActiveDianthus caryophyllus L. · Carnation
Emilio Cano
Balcolvio
ActivePelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium
Trees Scott C.|Shell Beach, CA, US
Butterfly Blue
ActiveSaintpaulia ionantha H. Wendl. · African violet
Van Der Knaap Henricus G. J.|Honselersdijk, NL
Barhugo
ActiveDianthus caryophyllus L. · Carnation
Emilio Cano
Cornice
TerminatedGerbera L. · Gerbera
FLORIST HOLLAND B.V.
Barenigma
ActiveDianthus caryophyllus L. · Carnation
Emilio Cano
Conles
ActiveRhododendron L. · Azalea
Robert Edward Lee
Baluptowed
ActiveCoreopsis L. · Tickseed
Winner Blair
Austough
Application submittedRosa L. · Rose
David Austin Roses