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.

Yomegan

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

VANDENBERG| Cornelis P. Vandenberg

DE
1 record

Wild Romance

Active

Hippeastrum Herb. · Amaryllis

Park Amaryllis V.O.F.

NL
1 record

White Symphony

Active

Hippeastrum Herb. · Amaryllis

Penning Breeding B.V.

NL
1 record

Wojto

Terminated

Sinningia speciosa (G. Lodd.) Hiern · Gloxinia

Flora in vitro Ogrodnictwo-Laboratorium inż. Kazimierz Dąbrowski

PL
1 record

YELLOW YOBLUSH

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

Susan M. POLYS (US)

FR
1 record

Zhadana

Terminated

Chrysanthemum L. · Chrysanthemum

Pirko Inna Fedorivna, Pel`tikhina Raisa Ivanivna,

UA
2 records

Yellow Snowdon

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

FRAMPTONS| Framptons Nurseries Ltd. Leythorne Nursery

DE
1 record

White Heart

Active

Tulipa L. · Tulip

Tulip Flower B.V.

NL
1 record

Yantarna

Terminated

Callistephus chinensis (L.) Nees · China aster

Kondratenko Vira Vasylivna, Shevel` Larysa Oleksiivna,

UA
2 records

WEKISCOROU

Withdrawn

Rosa L. · Rose

Weeks Roses Inc (US)

FR
1 record

Władysława

Terminated

Paeonia lactiflora Pall. · Chinese peony

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

Vytautas Virkau

Terminated

Begonia x tuberhybrida Voss · Tuberous begonia

Aleksandro Stulginskio universitetas

LT
1 record

Wyndham

Active

Tulipa L. · Tulip

Ligthart Flowerbulbs

NL
1 record

Wow

Active

Tulipa L. · Tulip

Maveridge Licensing B.V.

NL
1 record

World Bowl

Active

Tulipa L. · Tulip

G. Buis Bloembollen B.V./Phoenix Tulips V.o.f.

NL
1 record

Wendy Sunny Balloon

Active

Kalanchoe manginii Raym.-Hamet & H. Perrier · Chandelier plant

FISCHBECK| Max Fischbeck

DE
1 record

Voltage

Active

Tulipa L. · Tulip

Borst Bloembollen B.V.

NL
1 record

Weiße Sachsenstern

Terminated

Rhododendron simsii Planch. · Indica azalea

Karsten Rannacher

DE
1 record

Wild Dance

Active

Hippeastrum Herb. · Amaryllis

Park Amaryllis V.O.F.

NL
1 record

Jump to page 36 56 73 109 145 146 166 181 218