KAY-008
ActiveLactuca sativa L. · Lettuce
KUBOTA ITSUKI
Diseases
Root rots of lettuce
Lactuca sativa L.
A complex of lettuce diseases caused by soil-borne fungi, oomycetes, and bacteria, leading to root system damage, stunted growth, and plant wilting.
In the reference 43 varieties crop Lettuce, where this is mentioned in the description.
The primary causal agents of the disease are Pythium spp., Fusarium oxysporum f. sp. lactucae, Rhizoctonia solani, Aphanomyces cladogamus, Phoma anethi, Alternaria spp., Phytophthora spp., Verticillium spp., as well as specific pathogens Berkeleyomyces rouxiae, B. basicola, and Rhizomonas suberifaciens, which causes corky root rot.
Symptoms include darkening and necrosis of the roots, sliminess of the root system in the case of Pythium, corky texture of the tissues when infected with Rhizomonas, and the formation of dark lesions in black root rot. The presence of Race 1 is known for Fusarium oxysporum f. sp. lactucae.
In breeding for resistance to corky root rot, the recessive gene cor has been identified, and for black root rot, a monogenic dominant trait has been discovered, notably in the cultivar La Brillante.
General information about the subject — on the page Root rots.
Varieties of Lettuce mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Expertise
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
10 records
Névada
Protection expiredLactuca sativa L. · Lettuce
VILMORIN, S.A.
ES
FR
IT
NL
6 records
Jupiter
ActiveLactuca sativa L. · Lettuce
Paragon Seed, Inc.
CZ
NL
SK
5 records
Lotus
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Green Towers
ActiveLactuca sativa L. · Lettuce
Harris Moran Seed Company (USA) (US)
FR
NL
5 records
Livius
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
9 records
Xanadu
ActiveLactuca sativa L. · Lettuce
ENZA ZADEN
NL
4 records
Telex
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Ralph
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V, Rijk Zwaan Lettuce Breeding department
NL
6 records
Ice Callas
Application submittedLactuca sativa L. · Lettuce
Syngenta UK Ltd
NL
7 records
Fabietto
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Camelai
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
7 records
Brave Heart
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
2 records
Xaroma
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Kitonia
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Kidance
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
ES
FR
4 records
Mamutik
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Tirolion
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Tercius
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Stryker
TerminatedLactuca sativa L. · Lettuce
VILMORIN-MIKADO USA
FR
5 records
Salvius
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Pueblo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Parole
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
7 records