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.
Helianthus annuus L. · Sunflower
PANAM FRANCE SARL
Helianthus annuus L. · Sunflower
Poljoprivredni Institut Osijek, HR
Helianthus annuus L. · Sunflower
Kucheryava Olena Ivanivna, Hyske Ivan Mykolayovich, Buchuchanu Mikhail Ivanovich,
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
MAS SEEDS
Brassica napus var. napus · Rapeseed
Dirk Decherf
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
Steve Thompson
Helianthus annuus L. · Sunflower
Steve Thompson
Helianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Glycine max (L.) Merr. · Soybean
Research Planning and Coordination Agriculture and Agri-Food (CA)
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Brassica napus var. napus · Rapeseed
Trifolium repens L. · White clover
Phleum pratense L. · Timothy grass
Brassica napus var. napus · Rapeseed
Linum usitatissimum L. · Common flax
Brassica napus var. napus · Rapeseed
Brassica napus var. napus · Rapeseed
Helianthus annuus L. · Sunflower
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
BASF AGRICULTURAL SOLUTIONS US LLC
Brassica napus L. · Rapeseed
CAUSSADE SEMENCES
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S