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.
Trifolium pratense L. · Red clover
Lietuvos agrarinių ir miškų mokslų centras
Brassica napus var. napus · Rapeseed
SELGEN A.S
Trifolium pratense L. · Red clover
Hodowla Roslin Grunwald Sp. z.o.o. Grupa IHAR
Brassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
Glycine max (L.) Merr. · Soybean
STINE SEED CO.
Helianthus annuus L. · Sunflower
STRUBE ESPAÑA, S.A.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Glycine max (L.) Merr. · Soybean
UNIVERSITY OF GUELPH
Helianthus annuus L. · Sunflower
ISEA S.P.A.
Helianthus annuus L. · Sunflower
MAS SEEDS
Glycine max (L.) Merr. · Soybean
Prograin Eurasia B.V.
Helianthus annuus L. · Sunflower
PETRAN ALEXANDRU VIORELDRAGHIA VIOLETA CONSTANTAOPROI ADRIANA CRISTINA
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Glycine max (L.) Merr. · Soybean
PROGRAIN SEMENCES INC.
Trifolium pratense L. · Red clover
Biruta Jansone, Sarmite Rancane
Trigonella foenum-graecum L. · Fenugreek
HAO-DEMETER-Fodder Crops and Pastures Institute
Helianthus annuus L. · Sunflower
EURALIS SEMILLAS, S.A.
Helianthus annuus L. · Sunflower
Syngenta Seeds
Helianthus annuus L. · Sunflower
CST(CLUB SELECT.TOURNESOL
Helianthus annuus L. · Sunflower
LABOULET SEMENCES
Arachis hypogaea L. · Peanut
North Carolina Agricultural Research Service
Helianthus annuus L. · Sunflower
PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA
Brassica napus var. napus · Rapeseed
P. Jeanson
Helianthus annuus L. · Sunflower
Didier Sauvaire