Deliarsenal
Application submittedChrysanthemum L. · Chrysanthemum
Arie Gerard Post
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.
DLFILVIA
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Dekaviator
ActiveChrysanthemum L. · Chrysanthemum
Cornelis W. Dekker
Devon Winnie
ActiveDianthus L. · Carnation
Whetman John|Chudleigh, Devon TQ13 ONH, GB
Echcher298
ActiveEchinacea purpurea (L.) Moench · Purple coneflower
Holtmaat Henricus Maria Joseph
Fleurel
ActiveDahlia Cav. · Dahlia
van Dongen Esther
DANMU77
ActiveImpatiens walleriana Hook. f. · Busy Lizzie
Gavriel Danziger
Frycassia
ActiveRosa L. · Rose
Gareth R. Fryer
Freedom
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Fikaldiscod
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Ike Vlielander
Curly Lady
ActiveCamellia japonica L. · Japanese camellia
Vink Hubertus Jozef Maria|Beugen, NL
Drop352
ActiveEchinacea purpurea (L.) Moench · Purple coneflower
Holtmaat Henricus Maria Joseph
Don Ramon
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
Don Domingo
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
Fislulu
Protection expiredPelargonium L'Hér. ex Ait. · Geranium
Angelika Utecht
Conlet
ActiveRhododendron L. · Azalea
Robert Edward Lee
Coadelbol
ActiveDelphinium L. · Larkspur
Coakley Anthony Paul
DLFSIB1
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFLICI6
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFCHIA4
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Coseh 230
ActiveHelleborus niger L. · Christmas rose
Josef Heuger
Chia Nong Pink Sapphire
ActivePolianthes L.
Kuang-Liang Huang
Didi Orange Two
ActiveImpatiens walleriana Hook. f. · Busy Lizzie
Jonkers Johanna B.|Andijk, NL
CFPC Jade
ActiveDianthus caryophyllus L. · Carnation
Roy Stahlhut