IFG Cher-six
ActivePrunus avium (L.) L. · Sweet cherry
David W.Cain
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.
IFG Cher-one
ActivePrunus avium (L.) L. · Sweet cherry
INTERNATIONAL FRUIT GENETICS
RGT Asteroid
ActiveHordeum vulgare L. · Barley
Regis Dupont
DE
FR
UA
15 records
IFG Cher-five
ActivePrunus avium (L.) L. · Sweet cherry
David W.Cain
KLEP 02060
ActivePelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium
Nils Klemm
HU
PL
8 records
NOA 38121
ActiveRosa L. · Rose
Reinhard Noack
DE
8 records
V 9327 Z
ActiveZea mays L. · Maize
Monsanto Tehnology LLC, USA
UA
11 records
IFG Cher Nine
ActivePrunus avium (L.) L. · Sweet cherry
David W.Cain
KORCUT 0063
ActiveRosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Fip 440
ActivePelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
UTECHT| Angelika Utecht in Fa. Syngenta Seeds GmbH -Niederlassung-
DE
PL
6 records
Sil Linus
ActivePelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Silze GmbH & Co KG
DE
6 records
'KLEPZ10234'
ActivePelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Nils Klemm^^^Martin Glawe
KLEPP 06122
ActivePelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium
Nils Klemm
Hall's Beauty
ActiveRubus L. subg. Rubus · Blackberry
Finn Chad E
KLEPP 08207
ActivePelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium
Nils Klemm^^^Martin Glawe
JWW 5
ActiveViburnum plicatum Thunb. · Japanese snowball
Wezelenburg Jan-Willem
PT 299
ActiveBrassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
DE
DK
UA
9 records
WP09 MAR05
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman Pinks
WP11 GWE04
ActiveDianthus L. · Carnation
Carolyn Grace Bourne
WP08 IAN04
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman Pinks
WP10 HEL01
ActiveDianthus L. · Carnation
Carolyn Grace Bourne
WP 08 ROS03
ActiveDianthus x allwoodii hort. · Allwood pink
Whetman Pinks
EVIPO 020
ActiveClematis L. · Clematis
Poulsen Roser AS, DK - 3480 Fredensborg
Evera 118
ActiveRosa L. · Rose
Roses Forever ApS