Panther
TerminatedSolanum lycopersicum L. · Tomato
NL
2 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.
Montebelo
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Maximum
ActiveSolanum tuberosum L. · Potato
SE
3 records
Michel
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Mercana
TerminatedPhaseolus vulgaris L. · Common bean
NL
2 records
Lamia
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Krebsmand
ActiveSolanum lycopersicum L. · Tomato
CZ
2 records
Krebsli
ActiveSolanum lycopersicum L. · Tomato
CZ
2 records
Krebslun
ActiveSolanum lycopersicum L. · Tomato
CZ
2 records
Jindra
ActiveSolanum tuberosum L. · Potato
CZ
3 records
Jeirex
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Emina
ActiveSolanum tuberosum L. · Potato
CZ
3 records
Eraclito
ActiveSolanum lycopersicum L. · Tomato
CZ
2 records
Elanor
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Early Magnum
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Delioso
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Degheio
ActiveSolanum lycopersicum L. · Tomato
NL
2 records
Diva
ActiveRaphanus sativus L. var. oleiformis Pers. · Oil radish
CZ
3 records
Chablis
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Zumoured
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Zerlana
TerminatedSolanum lycopersicum L. · Tomato
CZ
2 records
Yaqui
Protection expiredSolanum lycopersicum L. · Tomato
HU
2 records
Xenia
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Zebryllo
ActiveSolanum lycopersicum L. · Tomato
HU
2 records