ESM Chispa
ActiveGypsophila L. · Baby's breath
Hooijman Aloysius A. J.|Aalsmeer, NL
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.
Delifortune
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFROC3
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFINN3
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Fonda
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
Vlielander Ike|De Lier, NL
Delibonbon Yellow
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Dafemogtyve
ActiveDahlia Cav. · Dahlia
Nielsen Rune Harboe
Don Martino
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
Don Angelo
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
Daenogtyve
ActiveDahlia Cav. · Dahlia
RUNE HARBOE NIELSEN
DLFVARE6
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFVAN2
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Christine Matton
ActiveRhododendron simsii Planch. · Indica azalea
Johan Van der Haegen, Hortibreed N.V.
DLFAR1
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Delidante Yellow
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Delibiscari
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Datreogtyve
ActiveDahlia Cav. · Dahlia
RUNE HARBOE NIELSEN
Dangypink
ActiveGypsophila L. · Baby's breath
HANS JURGEN EVERS (T)
Don Darcio
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
Don Carlos
ActiveKalanchoe blossfeldiana Poelln. · Flaming Katy
van der Knaap Leonardus Johannus Maria|Naaldwijk, NL
DLFVAN9
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
DLFOLGNE
ActiveChrysanthemum L. · Chrysanthemum
Arie Gerard Post
Devon Yolande
ActiveDianthus L. · Carnation
Whetman John|Chudleigh, Devon TQ13 ONH, GB
Christine Siena
ActiveRhododendron simsii Planch. · Indica azalea
Vanderhaegen Johan|Kruishoutem, BE