Variety traits
Tolerance is the ability of a variety to maintain productivity and crop quality when exposed to pathogens or abiotic stresses. Unlike resistant varieties, tolerant plants are affected by infection but compensate for the damage without significant yield loss.
Mentioned in descriptions 20 866 varieties reference book.
Variety tolerance is the ability of a plant to withstand pathogen infection or the influence of abiotic factors, such as drought or salinity, without a significant decrease in productivity. In contrast to resistance, where the plant blocks the development of the pathogen, a tolerant variety becomes infected and bears signs of the disease, yet its physiological processes allow it to maintain a satisfactory yield level.
Tolerance assessment is conducted under disease pressure conditions by comparing the yield of varieties with the same degree of infection. When analyzing diseases, rating scales are used, where varieties with a high degree of infection but an insignificant drop in yield are classified as tolerant. Physiological indicators of resistance to abiotic stresses include data on germination, root system development, and the condition of the photosynthetic apparatus.
The complex trait of tolerance is expressed through the yield reduction coefficient: the lower the drop in productivity under strong factor impact, the higher the indicator. It is agronomically important that tolerant varieties act as latent carriers of pathogens, contributing to their accumulation in the field, which requires increased attention to phytosanitary monitoring even when plants appear healthy.
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.
Fragaria L. · Strawberry
Ronald J. McNicol
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Zea mays L. · Maize
Syngenta Participations,CH
Prunus persica (L.) Batsch · Peach
Helianthus annuus L. · Sunflower
Syngenta Participations,CH
Zea mays L. · Maize
Syngenta Crop Protection,CH
Helianthus annuus L. · Sunflower
Syngenta Participations,CH
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE D and S GMBH
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Lactuca sativa L. · Lettuce
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE GmbH&Co.KG, DE
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
TAKII and CO LTD
Zea mays L. · Maize
Pioneer Overseas Corporation/Pioneer Hi-Bred International, Inc, USA
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Zea mays L. · Maize
Pioneer Overseas Corporation/ Pioneer Hi-Bred International Inc., USA
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INTERNATIONAL
Allium porrum L. · Leek
Hazera Seeds B.V.
Zea mays L. · Maize
Pioneer Overseas Corporation/Pioneer Hi-Bred International, Inc, USA
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Lolium perenne L. · Perennial ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Zea mays L. · Maize
R2n SAS
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK