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.

Marinella

Terminated

Begonia x hiemalis Fotsch · Elatior Begonia

MAN| J. Man

1 record

LONREZO

Terminated

Dianthus caryophyllus L. · Carnation

BARBERET & BLANC, S.A.

1 record

LONKATAN

Withdrawn

Dianthus caryophyllus L. · Carnation

BARBERET/DUCLOUX

1 record

Mascotte Rouge

Active

Tulipa L. · Tulip

Vertuco B.V.

1 record

Liroza

Terminated

Matthiola incana (L.) R. Br. · Hoary stock

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

1 record

MANROMI ROMINA

Terminated

Dianthus caryophyllus L. · Carnation

DIANTHUS

1 record

Malynova Vatra

Terminated

Paeonia L. · Peony

Horobets Vasyl Fedorovych

2 records

Loris

Active

Dianthus L. · Carnation

BARATTA AGOSTINO

1 record

Malen`kyi prynts

Terminated

Prunus mira Koehne

Kriukova Iryna Vadymivna, Komar-Temna Larysa Dmitrivna,

2 records

Marita

Terminated

Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy

Gerbera Nisters

1 record

Limousine

Active

Tulipa L. · Tulip

J.A.Borst Bloembollen B.V.

1 record

Maiko San

Active

Tulipa L. · Tulip

Select Flower

1 record

Magyarok Nagyasszonya

Terminated

Rosa L. · Rose

Mark Gergely / Mark Gergelyne

1 record

Liwia

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

1 record

Lismar

Active

Hippeastrum Herb. · Amaryllis

Marrewijk Amaryllis B.V.

1 record

Lilac Mist

Terminated

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

TREES| Ph.D. Scott C. Trees

1 record

LENA

Terminated

Saintpaulia ionantha H. Wendl. · African violet

ARNOLD FISCHER

1 record

Magdalena

Terminated

Callistephus chinensis (L.) Nees · China aster

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Szymanów Sp. z o.o.

1 record

LUCKY

Terminated

Chrysanthemum L. · Chrysanthemum

N.V. JOLU-PLANT

1 record

Lorenzo

Active

Tulipa L. · Tulip

Remarkable C.V.

1 record

LEYLA

Terminated

Chrysanthemum L. · Chrysanthemum

Pieters Dirk

1 record

Londuka

Withdrawn

Dianthus caryophyllus L. · Carnation

Barberet, Alexandre/Blanc, Henri

1 record

Love Magic

Withdrawn

Tulipa L. · Tulip

Bloembollen Kwekerij Jan de Wit en Zonen B.V.

1 record

Lord

Terminated

Brassica napus var. napus · Rapeseed

BAUKLOH| Dr. Hans Baukloh in Fa. KWS SAAT AG

1 record

1 2 ... 169 170 171 172 173 174 175 ... 253 254 Next

Jump to page 36 72 73 109 145 162 181 182 218

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.