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.
Triticum aestivum L. · Bread wheat
Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)
x Triticosecale Wittm. ex A. Camus · Triticale
SEMILLAS BATLLE, S.A.
Triticum durum Desf. · Durum wheat
Florimond Desprez Veuve et Fils, FR
Triticum aestivum L. · Bread wheat
LIMAGRAIN EUROPE
Triticum aestivum L. · Bread wheat
Lietuvos agrarinių ir miškų mokslų centras
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
x Triticosecale Wittm. ex A. Camus · Triticale
SAATZUCHT STRENG-ENGELEN GMBH&CO. KG
Triticum aestivum L. · Bread wheat
Nickerson International Research S.N.C.
Triticum durum Desf. · Durum wheat
Südwestdeutsche Saatzucht GmbH&Co.KG
Triticum aestivum L. · Bread wheat
Ushkarenko Viktor Oleksandrovych, Orliuk Anatolii Pavlovych, Lazer Petro Nartsysovych, Zhuzha Oleksandr Dmytrovych, Honcharova Kapitolina V'iacheslavivna, Bazalii Halyna Hryhorivna,
Triticum aestivum L. · Bread wheat
AGROSYSTIMATA SA / KYRIAKOU SOFIA P.C.
Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac
Nunhems B.V.
x Triticosecale Wittm. ex A. Camus · Triticale
V. Georgiev, T. Petrova, I. Iliev, V. Ivanova
Triticum aestivum L. · Bread wheat
IANOS TRADE CONSULTANCY SPC
Triticum aestivum L. · Bread wheat
Florimond Desprez Veuve et Fils, FR
Triticum aestivum L. · Bread wheat
Hybritech Europe SNC (FR)
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
Tina Henriksson
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Südwestsaat GmbH
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Triticum durum Desf. · Durum wheat
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
Teagasc
Triticum durum Desf. · Durum wheat
S.I.S. SOCIETA' ITALIANA SEMENTI
Glycine max (L.) Merr. · Soybean
Sonets` Viktor Andriiovych, Pylypchenko Andrii Vasylovych, Tymchenko Viktor Naumovych, Marc Ham, Andre Letourneau, Alie Leturno,