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
Remy ROUANET
Helianthus annuus L. · Sunflower
PETIARD Benoit
Glycine max (L.) Merr. · Soybean
Sevita International
Helianthus annuus L. · Sunflower
Joel Meunier
Helianthus annuus L. · Sunflower
Joel Meunier
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Trifolium pratense L. · Red clover
Rijksstation Voor Plantenveredeling (BE)
Poa pratensis L. · Kentucky bluegrass
TURF-SEED INC
Arachis hypogaea L. · Peanut
North Carolina Agricultural Research Service
Helianthus annuus L. · Sunflower
Nidera S.A.
Helianthus annuus L. · Sunflower
Advanta Seeds International
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Glycine max (L.) Merr. · Soybean
P. Jeanson
Helianthus annuus L. · Sunflower
Euralis Semences, Mondoville (FR)
Helianthus annuus L. · Sunflower
SYNGENTA SEEDS AG, CH
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Helianthus annuus L. · Sunflower
Martin Ganssmann
Brassica napus var. napus · Rapeseed
Norddeutsche, D
Brassica napus L. · Rapeseed
Reinhard Hemker
Trifolium repens L. · White clover
Klaus K. Nielsen
Trifolium pratense L. · Red clover
Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller