Evera 105
ActiveRosa L. · Rose
Roses Forever ApS
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.
Evera 131
ActiveRosa L. · Rose
Roses Forever ApS
Evera 103
ActiveRosa L. · Rose
Roses Forever ApS
Hi-Q
ActiveBrassica napus var. napus · Rapeseed
STRINGAM| Dr. Gary R. Stringam c/o Department of Agricultural Food and Nutritional Science, / DEGENHARDT| Delbert F. Degenhardt c/o Department of Agricultural Food and Nutritional Science,
DE
PL
6 records
TANO LOKIP
Protection expiredRosa L. · Rose
TANTAU NACH| Rosen Tantau KG
DE
DK
NL
4 records
N4l102 Cl
ActiveHelianthus annuus L. · Sunflower
NUSEED EUROPE
IT
UA
6 records
Sil Hero
TerminatedPelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Silze GmbH & Co KG
DE
4 records
NOA 20054
ActiveRosa L. · Rose
Reinhard Noack
DE
4 records
Blind Date
ActiveGerbera L. · Gerbera
PETRUS JUDOCUS WILHELMUS SCHREURS
NL
4 records
POULPAR 040
ActiveRosa L. · Rose
Poulsen Roser A/S
WP09 WEN04
ActiveDianthus x allwoodii hort. · Allwood pink
Carolyn Grace Bourne
YOUME H19-17
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Korhulth 002
ActiveRosa L. · Rose
Wilhelm-Alexander Kordes, Tim-Hermann Kordes, John-Vincent Kordes
Korfloci 01
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Evera 122
ActiveRosa L. · Rose
Roses Forever ApS
SAKZIN 008
ActiveZinnia L. · Zinnia
Sakata Seed Corporation (SCC)
Evera 168
ActiveRosa L. · Rose
Roses Forever ApS
Evera 134
ActiveRosa L. · Rose
Rosa Eskelund
Evera 121
ActiveRosa L. · Rose
Rosa Eskelund
Evera 101
ActiveRosa L. · Rose
Rosa Eskelund
Bennett - Hickman
ActivePrunus dulcis (Mill.) D. A. Webb · Almond
James Bennett
Evera 119
ActiveRosa L. · Rose
Rosa Eskelund
KLECA 13242
ActiveCalibrachoa Cerv. · Calibrachoa
NILS KLEMM|ANITA STOEVER
'DAATTEN'
ActiveDahlia Cav. · Dahlia
RUNE HARBOE NIELSEN