Diseases
Sclerotinia sclerotiorum
White mold is a dangerous fungal disease caused by a soil-borne pathogen that affects a wide range of crops and persists in the soil in the form of sclerotia. The disease leads to significant crop losses and reduced product quality.
Mentioned in descriptions 3 042 varieties reference book.
The disease manifests as seedling rot and the appearance of brown, water-soaked spots on stems and flower heads, which become covered with a dense, white, cotton-like mycelial growth. Black, dense structures known as sclerotia form inside and on the surface of tissues, serving as a source of infection.
Pathogen development depends on temperature ranges from +10°C to +25°C, as well as high soil and air humidity, which are necessary for the germination of sclerotia. The risk of infection increases with high planting density, poor crop rotation, and excessive nitrogen fertilization.
Resistance of varieties to white mold is a quantitative polygenic trait provided by cell wall density and the plant's ability to neutralize oxalic acid secreted by the fungus. Resistance assessment in variety trials is conducted by recording the spread and severity of plant infection under field conditions on natural or artificial inoculation plots.
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.
Brassica napus var. napus · Rapeseed
OSEVA vývoj a výzkum s.r.o. (CZ)/SELGEN, a.s. (CZ)/SEMPRA PRAHA a.s. (CZ)/Národní centrum zemědělského a potravinářského výzkumu, v. v. i. (CZ)/Agritec Plant Research s.r.o. (CZ)
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Brassica napus var. napus · Rapeseed
RAGT 2n, FR
Helianthus annuus L. · Sunflower
Euralis Semences
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Brassica napus L. · Rapeseed
SERASEM
Brassica napus var. napus · Rapeseed
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Trifolium repens L. · White clover
L. DÆHNFELDT A/S
Brassica napus L. · Rapeseed
Reinhard Hemker
Helianthus annuus L. · Sunflower
Syngenta Participations AG| CH
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht DE
Trifolium pratense L. · Red clover
RIJKSTATION VOOR PLANT.
Chrysanthemum x morifolium Ramat. · Florist's daisy
PIETERS| Dirk Pieters
Glycine max (L.) Merr. · Soybean
Universitaet Hohenheim
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Helianthus annuus L. · Sunflower
Northrup King Semences SA (FR)
Brassica napus var. napus · Rapeseed
Saatzucht Donau GmbH & Co.KG
Daucus carota L. · Carrot
Trifolium pratense L. · Red clover
Lietuvos agrarinių ir miškų mokslų centras
Glycine max (L.) Merr. · Soybean
Andre Letourneau, Alain Letourneau,
Helianthus annuus L. · Sunflower
RAGT 2n, FR
Phaseolus vulgaris L. · Common bean
Michigan State University