Eurotonda
ActiveSolanum tuberosum L. · Potato
Heinrich Böhm
NL
5 records
Pests
Nematodes
Nematodes are microscopic roundworm endoparasites that feed on plant sap and cause significant yield losses. Varietal resistance is provided by genetic mechanisms that prevent pest reproduction and is assessed according to the International Seed Federation scale.
Mentioned in descriptions 13 637 varieties reference book.
Nematodes are microscopic roundworms ranging from 0.3 to 2 mm in size that act as obligate plant parasites. Most species penetrate root, stem, or bulb tissues, causing growth inhibition, wilting, and patchy crop development, with tissue damage often facilitating secondary infections.
Varietal resistance to nematodes is based on the plant's genetic apparatus, including specific R-genes that limit the feeding or reproduction of the pest. In some cases, protection is provided by a hypersensitive response, where local cell death occurs at the site of infection.
Protection efficacy is evaluated using International Seed Federation codes: HR denotes high resistance with limited parasite development under high inoculum pressure, while IR indicates intermediate resistance. The level of protection is race-specific and depends on the specific species and pathotype of the nematode.
Breakdown by crop
Root-knot nematodes of tomato
1 711
Potato nematodes
1 231
Nematodes of sugar beet
287
Pepper Nematodes
154
Nematodes — Oilseed radish
143
Nematodes in white mustard
105
Nematodes — Tomato (Interspecific Hybrids)
79
Alfalfa nematodes
62
Barley nematodes
55
Root-knot nematodes of tomato
49
Soybean cyst nematode
35
Grapevine Nematodes
32
Plum nematodes
24
Peach nematodes
22
Rice nematodes
22
Nematodes in black oat
21
Nematodes of oats
20
Citrus Nematode
19
Nematodes — Prunus amygdalus x Prunus persica
16
Nematodes of White Clover
15
Nematodes in Prunus davidiana × Prunus persica hybrids
14
Nematodes — Solanum torvum Sw.
14
Nematodes — common wheat
14
Nematodes — hybrids between Citrus x aurantium L. x Citrus trifoliata L.
13
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.
Eventide
Application submittedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Festien
ActiveSolanum tuberosum L. · Potato
Eiko Jan Feunekes
DE
5 records
Essenza
ActiveSolanum tuberosum L. · Potato
Agri-food and Biosciences Institute (AFBI)
NL
7 records
Falcon
ActiveSolanum lycopersicum L. · Tomato
May Agro Seed Corp.(TR)
BG
3 records
Falkland
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
5 records
Fajah
ActiveSolanum tuberosum L. · Potato
Renze Klaas Rispens
NL
5 records
Faidra
ActiveSolanum lycopersicum L. · Tomato
Hazera Genetics, Izrael
GR
3 records
Empress
ActiveSolanum tuberosum L. · Potato
Germicopa Breeding S.A.S
NL
5 records
Emiliana
ActiveSolanum tuberosum L. · Potato
Justus Böhm
DE
5 records
Elata KWS
ActiveSolanum tuberosum L. · Potato
Klaas J. Elzes
NL
6 records
Elinor
ActiveSolanum tuberosum L. · Potato
Danespo A/S
DK
4 records
Euroflora
ActiveSolanum tuberosum L. · Potato
Heinrich Böhm
NL
5 records
Euroking
Protection expiredSolanum tuberosum L. · Potato
Heinrich Böhm
DE
4 records
DR0607TC
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
5 records
Earlion
Application submittedSolanum lycopersicum L. · Tomato
Nunhems B.V.
NL
4 records
Dux
TerminatedRaphanus sativus L. var. oleiformis Pers. · Oil radish
ILVO-PLANT 39
BE
3 records
Eris
ActiveSolanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
FR
4 records
Dounia
ActiveSolanum tuberosum L. · Potato
Bretagne-Plants S.C.I.C.A.
FR
4 records
Dunne
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
4 records
Dundrod
Protection expiredSolanum tuberosum L. · Potato
SEED POTATO PROMOTIONS(N.I.) LTD
SE
4 records
Elvo
TerminatedOryza sativa L. · Rice
LUGANO LEONARDO SRL
IT
3 records
Dubrava
ActiveSolanum tuberosum L. · Potato
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»
UA
4 records
Embajador
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records