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
FORSCHUNGSANSTALT FÜR AGRARÖKOLOGIE UND LANDBAU^^^Station Fédérale de Recherches Agronomiques de Changins (RAC)
Triticum aestivum L. · Bread wheat
Lonnet Philippe
Triticum aestivum L. · Bread wheat
CO.NA.SE soc Coop.Agr. (IT)/Apsov sementi S.p.A. (IT)
x Triticosecale Wittm. ex A. Camus · Triticale
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Triticum aestivum L. · Bread wheat
Societa Produttori Sementi S.p.A
Triticum aestivum L. · Bread wheat
PRO.SE.ME S.R.L.
Triticum durum Desf. · Durum wheat
LIMAGRAIN EUROPE S.A.
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Triticum aestivum L. · Bread wheat
Syngenta Seeds SAS, FR
Glycine max (L.) Merr. · Soybean
Gerardo Luis Bartolome
Hordeum vulgare L. · Barley
Dieter Stelling
Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac
Moravoseed Spol. S.r.o
Triticum aestivum L. · Bread wheat
Asur Plant Breeding SAS
Triticum aestivum L. · Bread wheat
NORDSAAT SAATZUCHT
Triticum aestivum L. · Bread wheat
Asur Plant Breeding SAS Pôle Végétal de la Plaine d'Estrées
Triticum aestivum L. · Bread wheat
TOMAS NOVACEK
Triticum aestivum L. · Bread wheat
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Triticum aestivum L. · Bread wheat
TWYFORD SEEDS LTD
Triticum aestivum L. · Bread wheat
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Triticum aestivum L. · Bread wheat
SAATZUCHT SCHWEIGER GBR
Triticum aestivum L. · Bread wheat
RAGT 2n
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR
Triticum aestivum L. · Bread wheat
Wiersum Plantbreeding B.V.