Gwen
ActiveSolanum tuberosum L. · Potato
Germicopa SAS, FR
FR
1 record
Diseases
Potato early blight
Solanum tuberosum L.
A fungal disease of potatoes caused by the pathogen Alternaria solani, characterized by the appearance of spots with concentric zoning on the leaves, as well as lesions on stems and tubers.
In the reference 86 varieties crop Potato, where this is mentioned in the description.
The primary causal agent of potato early blight is the imperfect fungus Alternaria solani Sorauer. The role of other Alternaria species isolated from infected plants is considered secondary. There is no clear international division into races, so isolates are classified by morphological traits or levels of aggressiveness.
Symptoms on the leaves appear during the budding stage as dark brown spots 10–35 mm in diameter with characteristic concentric zoning, which become covered with an olive-colored mold under high humidity conditions. Elongated dark spots form on the stems, while sunken areas with dry rot of the flesh appear on the tubers.
The genetics of resistance to Alternaria solani is not sufficiently understood, and breeding is conducted primarily based on quantitative traits. Unlike late blight, there are no generally accepted R-gene designations for resistance to this pathogen.
General information about the subject — on the page Alternaria blight.
Varieties of Potato 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.
Zlahoda
ActiveSolanum tuberosum L. · Potato
Bondarchuk Anatolii Andriiovych, Osypchuk Andrii Antonovych, Taktaiev Borys Anatoliiovych, Nazar Stefaniia Hryhorivna, Sidakova Oksana Vladyslavivna, Kupriianova Tetiana Mykolaivna, Cherednychenko Liubov Mykolaivna, Zakharchuk Nataliia Anatoliivna, Borivs
UA
2 records
Nahoroda
ActiveSolanum tuberosum L. · Potato
Sharapa Liubov Panasivna, Dan`ko Heorhii Vasyl`ovych, Manoilo Halyna Vasylivna, Khomenko Larysa Dmytrivna, Petrenko Kateryna Oleksandrivna, Onyshcenko Oleh Fedorovych,
UA
2 records
Myroslava
ActiveSolanum tuberosum L. · Potato
Siharova Dina Dmytrivna, Sobran Ivan Vasyl`ovych, Tomash Anatolii Ivanovych, Borivs`kyi Anatolii Frantsovych, Cherednychenko Liubov Mykolaivna, Taktaiev Borys Anatoliiovych, Nazar Stefaniia Hryhorivna, Osypchuk Alla Andriivna, Furdyha Mykola Mykolaiovych,
UA
2 records
Misteriia
ActiveSolanum tuberosum L. · Potato
Osypchuk, Alla Cherednichenko, Liubov Furdyha, Mykola Tomash, Anatolii Kupriianova, Tetiana Taktaiev, Borys Borzykh, Oleksandr Zakharchuk, Nataliia Bondarchuk, Anatolii
UA
2 records
Liubava
ActiveSolanum tuberosum L. · Potato
Instytut kartopliarstva Natsionalnoi akademii ahrarnykh nauk Ukrainy
UA
2 records
Lietana
ActiveSolanum tuberosum L. · Potato
Mel`nyk Pavlo Oleksiiovych, Bondarchuk Anatolii Andriiovych, Kozun` Ihor Ivanovych, Tymko Liudmyla Volodymyrivna, Pysarenko Nataliia Vasylivna, Lysak Olena Andriivna, Andriienko Tetiana Mykhailivna, Tymko Mykola Hryhorovych, Sydorchuk Vasyl Ivanovych,
UA
4 records
Lehenda
ActiveSolanum tuberosum L. · Potato
Pylypenko Liliia Aminivna, Il`chuk Roman Vasyl`ovych, Il`chuk Lidiia Andriivna,
UA
2 records
Kniahynia
ActiveSolanum tuberosum L. · Potato
Siharova Dina Dmytrivna, Panasiuk Oleksandr Vasyl`ovych, Sadivs`kyi Myron Vasyl`ovych, Lischak Ivan Oleksiiovych, Loik Mariia Vasylivna, Zaviriukha Petro Danylovych, Tymoshenko Ivan Ivanovych, Snityns`kyi Volodymyr Vasyl`ovych,
UA
3 records
Dyvyna
ActiveSolanum tuberosum L. · Potato
Instytut kartopliarstva Natsionalnoi akademii ahrarnykh nauk Ukrainy
UA
2 records
Compagnon
TerminatedSolanum tuberosum L. · Potato
Veenkoloniale Boeren Bond (NL)
FR
2 records
ALKA
WithdrawnSolanum tuberosum L. · Potato
IRPT.ZAMARTE
ES
1 record
Slovianka
Application submittedSolanum tuberosum L. · Potato
UA
1 record
Opillia
ActiveSolanum tuberosum L. · Potato
UA
2 records
Rahneda
TerminatedSolanum tuberosum L. · Potato
UA
2 records
Poliska 96
Application submittedSolanum tuberosum L. · Potato
UA
1 record