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.

Bluedia

Active

Aster L. · Aster

Peter Akerboom

3 records

BIDZ0002

Active

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

van Kleinwee Theodorus Cornelis Maria

3 records

BKPBEBVRD

Active

Begonia boliviensis A. DC. · Bolivian begonia

Beekenkamp Annie Cornelia

4 records

Anastasia Dark Lime

Active

Chrysanthemum L. · Chrysanthemum

JAN HOEK

3 records

Baroliva

Active

Dianthus caryophyllus L. · Carnation

DONATO DI GIORGIO

3 records

Baravar

Active

Dianthus caryophyllus L. · Carnation

Emilio Cano

3 records

Bargenio

Active

Dianthus caryophyllus L. · Carnation

EMILIO A. CANO VICENTE

3 records

Bbmil

Active

Begonia x hiemalis Fotsch · Elatior Begonia

TOBIUS GUNTER DUMMEN

3 records

Anastasia Yellow

Active

Chrysanthemum L. · Chrysanthemum

JAN HOEK

3 records

Balcoldaav

Active

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

Trees Scott C

3 records

Balglimapp

Active

Impatiens walleriana Hook. f. · Busy Lizzie

SIMONE E. CRAIN

3 records

AUSA27A16

Application submitted

Rosa L. · Rose

David Austin Roses

3 records

Argywhimi

Active

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Syngenta Seeds B.V.

3 records

Abelf

Active

Kalanchoe blossfeldiana Poelln. · Flaming Katy

ANDREAS SMAAL|ANTONIE H. LANKHAAR

3 records

Argyminpifi

Application submitted

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Syngenta Seeds B.V.

3 records

Argyros

Active

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

van Kleinwee Theodorus Cornelis Maria|Hoorn, NL / Houbraken Anna M. W. P.|Fijnaart, NL

3 records

Anastasia

Active

Chrysanthemum L. · Chrysanthemum

JAN HOEK

3 records

Allura

Active

Dianthus caryophyllus L. · Carnation

P.Kooij & Zonen B.V.

3 records

Adorable

Active

Leucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy

Korlipara Harini

4 records

Adonicus Double Orange

Active

Hibiscus rosa-sinensis L. · Chinese hibiscus

Poul Graff

3 records

Abepona

Active

Ranunculus asiaticus L. · Persian buttercup

IMPRESA INDIVIDUALE BIANCHERI ALBERTO

5 records

4starvan

Terminated

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Thomas Smith|Mike Heulitt|Sandy Merzger

3 records

Mv Felleg

Active

Triticum aestivum L. · Bread wheat

Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Mariann Rákszegi^^^Klára Mészáros^^^Ildikó Karsai^^^Zoltán Bognár

5 records

GK Szereda

Active

Triticum aestivum L. · Bread wheat

Pauk Janos / Papp Maria / Beke Bela / Lantos Csaba / Cseuz Laszlo / Ovari Judit / Pugris Tamas

4 records

1 2 ... 86 87 88 89 90 91 92 ... 253 254 Next

Jump to page 36 73 79 99 109 145 181 189 218

Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.