Tami
TerminatedSolanum lycopersicum L. · Tomato
Nirit Seeds Ltd (IL)
FR
2 records
Diseases
Tomato Early Blight
Solanum lycopersicum L.
A fungal disease of tomatoes caused by Alternaria solani, characterized by the appearance of spots with concentric zonation on leaves, stems, and fruits. Variety resistance is primarily polygenic in nature.
In the reference 220 varieties crop Tomato, where this is mentioned in the description.
The primary pathogen of tomato early blight is the fungus Alternaria solani Sorauer; small-spored species such as Alternaria alternata and Alternaria tomatophila also occur. The disease affects all above-ground plant organs, manifesting on leaves as dark brown spots with distinct concentric zonation and a yellow halo. Elongated spots appear on stems and petioles, leading to cracking and tissue breakage, while fruit infection is most often localized in the peduncle area in the form of sunken, dry, dark spots.
Unlike a number of other tomato diseases, no clear dominant resistance genes used in standard variety coding descriptions have been identified for early blight. In international practice, the codes As (for Alternaria solani) and Aal (for Alternaria alternata f. sp. lycopersici) are used to denote resistance to the pathogen. Due to the polygenic nature of resistance, breeding programs typically assess the level of tolerance or the degree of plant susceptibility using scoring scales rather than the presence of specific genes.
General information about the subject — on the page Alternaria blight.
Varieties of Tomato 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.
SV3357TC
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
4 records
Sogno
TerminatedSolanum lycopersicum L. · Tomato
Western Seed International B.V.
NL
2 records
Solito
ActiveSolanum lycopersicum L. · Tomato
Pro-Veg Seeds Ltd. Unit N Peek House, Dales Manor Business Park
NL
2 records
Shourouq
ActiveSolanum lycopersicum L. · Tomato
Bayer Holland B.V.
NL
2 records
Satyvo
ActiveSolanum lycopersicum L. · Tomato
SAKATA SEED AMERICA INC US
FR
2 records
Red Canner
ActiveSolanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
PT
3 records
Plovdivska karotina
ActiveSolanum lycopersicum L. · Tomato
Harutyan Manuelyan, Milko Stoyanov, Galina Pevicharova, Daniela Ganeva, Zizi Stoyanova, Nevena Todorova
BG
3 records
Plum Regal
ActiveSolanum lycopersicum L. · Tomato
Bejo Zaden B.V.
NL
3 records
Petopride II
TerminatedSolanum lycopersicum L. · Tomato
PETOSEED CO
ES
2 records
Pink Magic
ActiveSolanum lycopersicum L. · Tomato
Sakata Seed Corporation, JP
FR
2 records
Oxheart orange
ActiveSolanum lycopersicum L. · Tomato
Domaine Public (FR)
FR
2 records
N 6404
ActiveSolanum lycopersicum L. · Tomato
Nunhems B.V.
NL
3 records
Monty
TerminatedSolanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
ES
2 records
Mountain Fresh Plus
ActiveSolanum lycopersicum L. · Tomato
Harris Moran Seed Company (USA) (US)
FR
2 records
Mountain Tiger
ActiveSolanum lycopersicum L. · Tomato
Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV
PL
2 records
Marinika
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Mecline
TerminatedSolanum lycopersicum L. · Tomato
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
FR
3 records
Luisa
TerminatedSolanum lycopersicum L. · Tomato
Hazera Genetics Ltd (IL)/Yissum Research dev of the Hebrew University of Jerusalem (IL)
FR
2 records
Madeira
TerminatedSolanum lycopersicum L. · Tomato
Vikima Seed A.S.
PL
2 records
Laredo
TerminatedSolanum lycopersicum L. · Tomato
WESTERN SEED ESPAÑA, S.A.
ES
3 records
Krasotka
ActiveSolanum lycopersicum L. · Tomato
OOO 'AGROFIRMA 'SEDEK'
UA
3 records
Katja
Application submittedSolanum lycopersicum L. · Tomato
Western Seed International B.V.
BG
2 records
Jaklin
TerminatedSolanum lycopersicum L. · Tomato
J. Danailov, L. Rusanov, D. Baralieva, I. Petkova
BG
3 records