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.
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Ginkgo biloba L. · Ginkgo
Flemer, Jr., William
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Prunus L. · Plum
Schreiber, Robert
Capsicum annuum L. · Bell pepper
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Cucumis sativus L. · Cucumber
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Solanum lycopersicum L. · Tomato
Daniela Ganeva, Stanislava Tileva, Galina Pevicharova
Solanum lycopersicum L. · Tomato
Graines Voltz (FR)
Brassica oleracea L. (Palm Kale Group) · Kale
TOZER SEEDS LTD
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-bred International Inc. (USA)
Beta vulgaris Sugar Beet Group · Sugar beet
Strube D&S GMBH
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Bayer Holland B.V.
Triticum aestivum L. · Bread wheat
Malopolska Hodowla Roslin Spolka z o.o.
Helianthus annuus L. · Sunflower
Pioneer Hi-Bred International Inc (US)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-bred International Inc. (USA)
Sorghum bicolor (L.) Moench · Sorghum
PIONEER HI-BRED INT
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INTERNATIONAL
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-bred International Inc. (USA)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-bred International Inc. (USA)
Allium cepa L. var. cepa · Onion
CROOKHAM COMPANY
Pisum sativum L. · Pea
E. Uzunova, H. Manuelyan, Y. Lichev