Diseases
Solanum lycopersicum L.
A fungal disease of tomato caused by the oomycete Phytophthora infestans, which affects all above-ground plant organs and is characterized by tissue necrosis under conditions of high air humidity.
In the reference 273 varieties crop Tomato, where this is mentioned in the description.
The pathogen Phytophthora infestans (Mont.) de Bary causes the formation of irregular, water-soaked lesions on leaves with a whitish layer of sporulation at humidity levels of 76% or higher. Elongated necrotic streaks form on the stems, leading to fragility, while infection of the fruits begins with firm, brown lesions that subsequently cause tissue softening or desiccation.
In breeding practice, resistance to the pathogen is based on the introgression of genes from the wild species Solanum pimpinellifolium. The Ph-3 gene is considered most effective for breeding and is often used in combination with Ph-2. In international standards, the resistance code for this disease is designated as Pi.
General information about the subject — on the page Late blight.
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.
Solanum lycopersicum L. · Tomato
NIRIT SEEDS
Solanum lycopersicum L. · Tomato
De Ruiter Seeds, NL
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Solanum lycopersicum L. · Tomato
WESTERN SEED ESPAÑA, S.A.
Solanum lycopersicum L. · Tomato
Steven Schroeder
Solanum lycopersicum L. · Tomato
Nunhnes B.V
Solanum lycopersicum L. · Tomato
Silvertand, B. C. H. J.
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Solanum lycopersicum L. · Tomato
Sativa coop (IT)
Solanum lycopersicum L. · Tomato
CLAUSE, S.A.
Solanum lycopersicum L. · Tomato
Semenarna Ljubljana, SI
Solanum lycopersicum L. · Tomato
Dutch American Plantbreeders Corp.
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
HEBREW UNI/HAZERA
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V. (NL)
Solanum lycopersicum L. · Tomato
PETOSEED CO
Solanum lycopersicum L. · Tomato
MONSANTO INVEST N.V.
Solanum lycopersicum L. · Tomato
MONSANTO INVEST N.V.
Solanum lycopersicum L. · Tomato
Garden Seeds B.V.
Solanum lycopersicum L. · Tomato
PETOSEED CO
Solanum lycopersicum L. · Tomato
De Ruiter Zonen (HR)
Solanum lycopersicum L. · Tomato
Petr Klapste
Solanum lycopersicum L. · Tomato
Superior, Velika Plana