Variety traits
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.
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.
Glycine max (L.) Merr. · Soybean
Olifirovych Svitlana Iosyfivna, Mikus Volodymyr IEvhenovych, Holokhorynska Mariia Hryhorivna,
Chrysanthemum x morifolium Ramat. · Florist's daisy
Bernard Innovation Vegetale
Prunus avium (L.) L. · Sweet cherry
INCONNU (FR)
Dianthus caryophyllus L. · Carnation
Blanc, Henri/Barberet, Alexandre
Matthiola incana (L.) R. Br. · Hoary stock
Hodowla i Nasiennictwo Roślin Ogrodniczych Waganiec sp. z o.o.
Lilium L. · Lily
Laan Flora Facilities B.V.
Petunia Juss. · Petunia
ZEHRER| Karl Zehrer / ZEHRER MICHAEL| Michael Zehrer
Dianthus L. · Carnation
BRIZARD JEAN
Pelargonium graveolens L'Hér. · Rose geranium
Hofmann Christa
Chrysanthemum x morifolium Ramat. · Florist's daisy
Bernard Innovation Vegetale
Bellis perennis L. · Lawn daisy
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Tulipa L. · Tulip
Sylvestris B.V.
Clematis L. · Clematis
Szczepan Marczyński
Hippeastrum Herb. · Amaryllis
PK Amaryllis
Dianthus caryophyllus L. · Carnation
Barberet, Alexandre/Blanc, Henri
Rosa L. · Rose
Andre ARNAUD (FR)
Dianthus L. · Carnation
SAPIA FLAVIO
Freesia Eckl. ex Klatt · Freesia
Penning Breeding B.V.
Dianthus caryophyllus L. · Carnation
Flavio Sapia Costanzo
Dianthus caryophyllus L. · Carnation
F.SAPIA
Rosa L. · Rose
LAURO LAURA
Tulipa L. · Tulip
J.A.Borst Bloembollen B.V.
Tulipa L. · Tulip
Marax Tulips V.O.F.
Lilium L. · Lily
Laan Flora Facilities B.V.