Skip to content
agronom.cc cultivar database

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.

Sources6

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

Rose 1 840 Tulip 404 Chrysanthemum 348 Carnation 347 Carnation 165 Horseshoe pelargonium 161 Lily 148 Dahlia 141 Gerbera 139 Almond 111 Bigleaf hydrangea 98 Elatior Begonia 88

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.

Double Mine

Application submitted

Tulipa L. · Tulip

World Flower B.V.

NL
2 records

Dickarl

Terminated

Rosa L. · Rose

Colin Dickson c/o Dickson Nurseries Limited

DE
1 record

Double Snow

Active

Lilium L. · Lily

De Looff World Breeding B.V.

NL
1 record

Double Dream

Active

Lilium L. · Lily

De Looff World Breeding B.V.

NL
1 record

Double Joy

Active

Narcissus L. · Daffodil

Ronald Dignum

NL
1 record

Doubleen

Active

Lilium L. · Lily

World Breeding B.V

NL
1 record

DORSEXY

Withdrawn

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

FR
1 record

DARK PINK GIN

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

FRAMPTONS NURSERIES (GB)

FR
1 record

Double Dutch Venus

Application submitted

Lilium L. · Lily

De Looff World Breeding B.V.

NL
1 record

Don Double

Withdrawn

Tulipa L. · Tulip

Vof Rotteveel Burgerbrug

NL
1 record

DORBLUE

Terminated

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

FR
1 record

Danja

Terminated

Rhododendron simsii Planch. · Indica azalea

JACKST| Bernd Jackst

DE
1 record

Domino

Terminated

Sinningia speciosa (G. Lodd.) Hiern · Gloxinia

Flora in vitro Ogrodnictwo-Laboratorium inż. Kazimierz Dąbrowski

PL
1 record

Domingo

Active

Dianthus L. · Carnation

BRIZARD JEAN

IT
1 record

Dalida

Withdrawn

Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy

Piet Schreurs B.V. Gerbera Culturen

PL
1 record

DELOCABRI

Terminated

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
1 record

Dniprovs`ki Dali

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

Zavidova Liudmyla Hnativna, Horobets Vasyl Fedorovych,

UA
1 record

Dekalb D 50

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Dekalb Genetics Corporation (usa) (US)

FR
1 record

DELBOUL

Terminated

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
1 record

Jump to page 36 73 84 109 145 174 181 194 218