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.
Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac
Ger Beemsterboer
Triticum aestivum L. · Bread wheat
Sejet Planteforµdling I/S
Triticum aestivum L. · Bread wheat
SAATEN UNION RECHERCHE
Helianthus annuus L. · Sunflower
Verneuil Recherche SA (FR)
Triticum aestivum L. · Bread wheat
Serasem, FR
Triticum aestivum L. · Bread wheat
Plant Breeding International Cambridge Ltd (GB)
Secale cereale L. · Rye
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
x Triticosecale Wittm. ex A. Camus · Triticale
Florimond Desprez Veuve et Fils, FR
Triticum aestivum L. · Bread wheat
NITA ZYGMUNT O. STANISLAW / PLUCIENNICZAK ELZBIETA, TERESA O JAN / PAKULSKA HANNA O. TADEUSZ / RYDZEWSKI JAN O. FRANCISZEK / BLASZCZAK WOJCIECH O. WLADYSLAW / BLASZCZAK MARIA O, MARIAN / JOACHIM KRZYSZTOF O. KRZYSZTOF
x Triticosecale Wittm. ex A. Camus · Triticale
PZO-Pflanzenzucht Oberlimpurg
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
x Triticosecale Wittm. ex A. Camus · Triticale
Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)
Triticum durum Desf. · Durum wheat
Co.Na.Se. Soc. Coop. Agr., Apsovsementi S.p.A.
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Triticum aestivum L. · Bread wheat
Institute of field and vegetable crops, Novi Sad, Serbia
Triticum aestivum L. · Bread wheat
LIMAGRAIN EUROPE
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S
Triticum aestivum L. · Bread wheat
REINER BOTHE
Triticum aestivum L. · Bread wheat
LIMAGRAIN EUROPE
Triticum aestivum L. · Bread wheat
KWS UK LTD
Triticum durum Desf. · Durum wheat
GYULA ZALABAI / TIBOR CSEMY
Triticum aestivum L. · Bread wheat
SELGEN A.S