Floridana
ActiveSolanum tuberosum L. · Potato
Justus Böhm
DE
8 records
Diseases
Scab
Scab is a group of crop diseases caused by fungi, actinomycetes, or plasmodiophoromycetes, manifesting as spots, ulcers, and deformations on vegetative and generative plant organs.
Mentioned in descriptions 12 064 varieties reference book.
Apple and pear scab affects leaves, flowers, ovaries, and fruits, manifesting as olive-colored spots with a velvety coating, which leads to fruit cracking and yield loss. In potatoes, several types of scab are distinguished: common scab, where ulcers appear on tubers, and powdery scab, characterized by the formation of warts that rupture into powdery ulcers, as well as root damage.
The development of the disease depends on environmental conditions: for fruit scab, high humidity and rainfall are favorable, while for potatoes, it depends on soil specifics (pH, temperature, and moisture). Varietal resistance is ensured by breeding based on major genes or their combinations. Absolutely immune varieties do not exist, so resistance often manifests as field resistance and depends on the climatic zone.
In variety trials, resistance is assessed visually using a scoring scale or in percentages under natural and artificial infection backgrounds. To increase the accuracy of breeding, molecular genetic marking is used, which allows for the detection of resistance genes by genotype, minimizing phenotypic evaluation errors.
Breakdown by crop
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.
Danina
ActiveSolanum tuberosum L. · Potato
Justus Böhm
DE
8 records
Corolle
ActiveSolanum tuberosum L. · Potato
HANS JURGEN EVERS (T)
FR
8 records
Casablanca
ActiveSolanum tuberosum L. · Potato
Sygnet PB, GB
NL
10 records
Brianna
ActiveSolanum tuberosum L. · Potato
Stet Holland B.V.
NL
8 records
Cauflight
ActiveMalus domestica (Suckow) Borkh. · Apple
Stephen Robert Glover Flightshott Farm Ltd.
FR
8 records
Buster
ActiveSolanum tuberosum L. · Potato
Teagasc Crops Research Centre
IE
8 records
Bellinda
ActiveSolanum tuberosum L. · Potato
Heinrich Böhm
NL
9 records
Apache
ActiveSolanum tuberosum L. · Potato
Zella J. Doig
NL
10 records
Anouk
ActiveSolanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico B.V.
NL
8 records
8S5505
ActiveMalus domestica (Suckow) Borkh. · Apple
HM the King in Right of Canada a.r.b the Minister of Agriculture and Agri-Food
FR
7 records
Retina
ActiveMalus domestica (Suckow) Borkh. · Apple
Prof. Dr. Manfred Fischer / Heinz Murawski + im Institut für Obstforschung Dresden-Pillnitz / Prof. Dr. Christa Fischer
DE
HU
NL
UA
9 records
Otava
ActiveMalus domestica (Suckow) Borkh. · Apple
Ústav experimentální botaniky AV ČR, v.v.i. (CZ)
CZ
FR
NL
SK
13 records
O'sirene
ActiveSolanum tuberosum L. · Potato
Federation des Syndicats Bretons (FR)
DK
ES
FR
NL
7 records
Pilot
ActiveMalus Mill. · Apple
Murawski, Smadlak, Fisher, M. Fisher
BG
IT
NL
SK
5 records
Relinda
ActiveMalus domestica (Suckow) Borkh. · Apple
Prof. Dr. Manfred Fischer / Heinz Murawski + im Institut für Obstforschung Dresden-Pillnitz / Prof. Dr. Christa Fischer
DE
HU
PL
UA
9 records
Herman
ActivePrunus domestica L. · European plum
Oldén, Elof J.
CZ
NL
PL
SE
11 records
James Grieve
ActiveMalus domestica (Suckow) Borkh. · Apple
CZ
NL
PL
SI
15 records
BTS 2645
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Henning Friehe
CZ
DE
PL
UA
5 records
Valetta
ActiveSolanum tuberosum L. · Potato
SaKa Pflanzenzucht GmbH & Co. KG (DE)
CZ
DE
NL
10 records
Ackersegen
ActiveSolanum tuberosum L. · Potato
Kartoffelzucht Böhm Ing. Gebrüder Böhm K.G.
AT
DE
FR
SK
5 records
Eldorado
ActiveSolanum tuberosum L. · Potato
Van Rijn France
FR
HR
NL
8 records
Concertina KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Muennekhoff Ann-Katrin, Hauer Dietrich,
DE
UA
6 records
Wotan
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
DK
FR
7 records