Diseases
Septoria
Septoria leaf blotch is a complex fungal disease of cereal crops, manifesting as leaf and glume blotch, leading to tissue necrosis and yield reduction.
Mentioned in descriptions 4 644 varieties reference book.
The disease is caused by fungi of the genus Septoria and related species, which infect all above-ground parts of plants. Light beige or grey-brown spots form on leaves and stems, and black dots, known as pycnidia, develop on their surface over time. The disease is dangerous in temperate climates with high humidity and frequent rainfall.
Pathogen development depends on weather factors, particularly temperatures in the range of +15…+25 °C and air humidity above 80%. The disease leads to a reduction in the photosynthetic area, grain shriveling, and a decline in baking quality. The level of loss varies from 10–15% in normal years to 50% during epiphytotics.
Varietal resistance is divided into vertical, based on specific Stb genes, and horizontal, which is considered more long-lasting. Horizontal resistance is determined by morphological characteristics: cuticle density, pubescence, the presence of a waxy bloom, and lack of sensitivity to fungal toxins.
Resistance evaluation in variety trials is conducted using infectious-provocative backgrounds, visual assessment of the degree of infection, and laboratory methods, including molecular diagnostics. The obtained data are compared with reference indicators to determine the effectiveness of variety protection under specific conditions.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Ribes rubrum L. · Redcurrant
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Hordeum vulgare L. · Barley
Serasem, FR
Triticum aestivum L. · Bread wheat
AGRI-OBTENTIONS
Helianthus annuus L. · Sunflower
Kopylov Serhii Ihorovych
Triticum aestivum L. subsp. aestivum · Bread wheat
BREUN GDBR| Saatzucht Josef Breun GdbR
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Triticum aestivum L. subsp. aestivum · Bread wheat
Selgen a.s., CZ
Triticum aestivum L. · Bread wheat
SZB Polska Sp.z o.o. Sp.j.
x Triticosecale Wittm. ex A. Camus · Triticale
SW Seed BV (NL)
Triticum durum Desf. · Durum wheat
S.I.S. SOCIETA' ITALIANA SEMENTI
Triticum aestivum L. subsp. aestivum · Bread wheat
R2n S.A.S. (Societe RAGT 2N)
Triticum durum Desf. · Durum wheat
Eurodur
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Triticum durum Desf. · Durum wheat
APSOVSEMENTI S.P.A.
Chrysanthemum L. · Chrysanthemum
PARATY B.V.B.A
x Triticosecale Wittm. ex A. Camus · Triticale
NORDSAAT SAATZUCHT
Phlox paniculata L. · Garden phlox
Geerlings-Meyer
x Tritordeum (Hordeum chilense x Triticum turgidum)
Agrasys S.L.
Triticum durum Desf. · Durum wheat
Leonov Oleh IUriiovych, Cherednychenko Viktor Mykolaiovych, Riabchun Nataliia Ivanivna, Chernobab Raisa Andriivna, Suvorova Kkateryna IUriivna, Shcypak Hennadii Vasylovych,
Avena sativa L. · Oat
SEMILLAS BATLLE, S.A.
Triticum aestivum L. · Bread wheat
GENETIC SERVICES S.R.L.
Triticum durum Desf. · Durum wheat
Vasyliev Oleksii Anatoliiovych, Rybalka Oleksandr Illich, Albul Anatolii Oleksiiovych, Avsenin Viacheslav Ivanovych, Fait Viktor Ivanovych, Palamarchuk Anatolii Ivanovych,
Triticum aestivum L. · Bread wheat
Chaika Anatolii Mykolaiovych, Dubova Oksana Anatoliivna, Burdeniuk-Tarasevych Larysa Antonivna,
Triticum durum Desf. · Durum wheat
Fomaniuk Valentyna Andriivna, Koliuchyi Vasyl` Trokhymovych, Fedchenko Hanna Vasylivna, Solona Valentyna Iosypivna, Vlasenko Volodymyr Anatoliiovych,