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
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Solanum lycopersicum L. · Tomato
PNOS
Solanum lycopersicum L. · Tomato
SATIMEX QUEDLINBURG HANDELSGESELLSCHAFT GmbH
Solanum lycopersicum L. · Tomato
SEMO a.s
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Harris Moran Seed (US)
Solanum lycopersicum L. · Tomato
Pro-Veg Seeds Ltd. Unit N Peek House, Dales Manor Business Park
Solanum lycopersicum L. · Tomato
Les Graines Caillard Sa (FR)
Solanum lycopersicum L. · Tomato
Nunhems BV (NL)
Solanum lycopersicum L. · Tomato
Vreugdenhil Breeding & Seeds B.V.
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Vreugdenhil Breeding & Seeds B.V.
Solanum lycopersicum L. · Tomato
PLANTENKWEKERIJ VREUGDENHIL B.V.
Solanum lycopersicum L. · Tomato
PLANTENKWEKERIJ VREUGDENHIL B.V.
Solanum lycopersicum L. · Tomato
Vreugdenhil Breeding & Seeds B.V.
Solanum lycopersicum L. · Tomato
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Solanum lycopersicum L. · Tomato
Vreugdenhil Breeding & Seeds B.V.
Solanum lycopersicum L. · Tomato
Vreugdenhil Breeding & Seeds B.V.
Solanum lycopersicum L. · Tomato
De Bolster B.V.
Solanum lycopersicum L. · Tomato
TOMATECH R&D ISRAEL L.T.D.
Solanum lycopersicum L. · Tomato
Domaine Public (FR)