Commodo
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
6 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.
Collina
ActiveSinapis alba L. · White mustard
LAMMERS SEED OPTIONS
DE
5 records
Cephora
ActiveSolanum tuberosum L. · Potato
SICA GROCEP
FR
6 records
Celaya
ActiveCapsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
NL
6 records
Catimini
ActiveSolanum tuberosum L. · Potato
Germicopa Breeding S.A.S
NL
5 records
Caddy
ActiveAvena sativa L. · Oat
Nordsaat Saatzucht GmbH, D-38895 Langenstein, OT Bohnshausen
EE
5 records
Canova
ActiveSolanum lycopersicum L. · Tomato
Yolanda Duran, Yes applicant details in question 1
FR
5 records
Briomino
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Enza Zaden Beheer B.V.
NL
6 records
Capeline
ActiveBrassica juncea (L.) Czern. · Brown mustard
Semences De France (FR)
FR
5 records
California ladino
ActiveTrifolium repens L. · White clover
University of California
ES
4 records
C 35
ActiveCitrus x insitorum Mabb.
FR
5 records
Bond
TerminatedHordeum vulgare L. · Barley
Sejet Planteforaedling I,S
DK
8 records
Bermello
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Bronski
Application submittedSolanum lycopersicum L. · Tomato
Martjin van Stee
NL
5 records
Belami
ActiveSolanum tuberosum L. · Potato
Station de Recherche du ComitÚ Nord
NL
7 records
Bosco
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
6 records
Bohemia
ActiveSolanum tuberosum L. · Potato
Vesa Velhartice a.s.
CZ
5 records
Balthasetto
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Bastian
ActiveTriticum aestivum L. · Bread wheat
Graminor AS, N-2322 Ridabu
FI
6 records
Blaue Anneliese
ActiveSolanum tuberosum L. · Potato
Karsten Ellenberg
DE
4 records
Avenue
ActiveHordeum vulgare L. · Barley
Sejet Planteforaedling I,S
DK
8 records
Bambelo
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
7 records
Bento
ActiveRaphanus sativus L. var. oleiformis Pers. · Oil radish
PHP PETERSEN
DE
5 records
Athlet
ActiveSinapis alba L. · White mustard
P.H. Petersen Saatzucht Lundsgaard GmbH Herrn Asmus Sören Petersen / Michaela Schlathölter
DE
6 records