ADELFIE
Protection expiredDianthus L. · Carnation
Sarneel, John
FR
3 records
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.
Zaboucora
ActiveBouvardia Salisb. · Bouvardia
van Zanten Plants b.v
Zosa
ActivePelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
van Kleinwee Theodorus Cornelis Maria|Hoorn, NL
Zodasmi
ActiveClematis L. · Clematis
WILLEM STRAVER
WP22 Elecdr
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman Plants International Limited
ADALECOB
ActiveRosa L. · Rose
Michel Adam (FR)
FR
3 records
Wescadobl
ActiveCalibrachoa Cerv. · Calibrachoa
Westhoff Heinrich|Sudlohn, DE
Zonaroma
Application submittedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Syngenta Seeds B.V.
WEKspitrib
ActiveRosa L. · Rose
Weeks Roses
Zolsali
Application submittedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Syngenta Seeds B.V.
Zobast
ActiveClematis L. · Clematis
van Zoest Jan
Yoottawa
Protection expiredChrysanthemum L. · Chrysanthemum
Wendy R Bergman
Valda Kitty
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman John
Yochesapeake
Protection expiredChrysanthemum L. · Chrysanthemum
CORNELIS P. VANDENBERG^^^Wendy Bergman
Zotemp
ActiveClematis L. · Clematis
WILLEM STRAVER
Zonabriscal
Application submittedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
van Kleinwee Theodorous Cornelis Maria|Hoorn, NL
Zarsbsun
ActiveRosa L. · Rose
Zary Keith W.
Tylo
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Ike Vlielander
Zowit
Application submittedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Syngenta Seeds B.V.
Valda Isolde
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman John
WESEVER
ActiveDianthus caryophyllus L. · Carnation
Selecta Klemm GmbH & Co. KG^^^West Select B.V.
Valda Louise
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman John
Zonascarora
Application submittedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Syngenta Seeds B.V.
TWYCA0018
ActiveCalathea G.F.W. Mey. · Calathea
Hambali Gregori G.|Bogor, ID