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.
Solanum torvum Sw. · Turkey berry
AKIRA SEEDS S.L.
Gossypium hirsutum L. · Upland cotton
GREENCO SA
Solanum lycopersicum L. · Tomato
HEINZSEED
Asparagus officinalis L. · Asparagus
California Asparagus Seed and Transplants, Inc. (US)
Solanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
Cucurbita pepo L. · Field pumpkin
Sakata Seed Sudamerica Ltd (BR)
Zea mays L. · Maize
GOLDEN HARVEST/J.C. ROBINSON
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE N.V./S.A.
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Cucurbita pepo L. · Field pumpkin
Saatzucht Gleisdorf
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Crop Protection AG
Zea mays L. · Maize
Francis Glenn
Solanum lycopersicum L. var. lycopersicum · Tomato
MYaZINA LYuBOV' ANATOL'EVNA
Beta vulgaris Sugar Beet Group · Sugar beet
NOVARTIS SEEDS A.B.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Zea mays L. · Maize
Gabonakutató Nonprofit Közhasznú Kft, Szeged
Sorghum bicolor (L.) Moench · Sorghum
Gabonakutató Nonprofit Közhasznú Kft, Szeged
Sorghum bicolor (L.) Moench · Sorghum
Rajki Erzsebet / Pal Mihaly
Lactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
Apium graveolens L. var. dulce (Mill.) Pers. · Celery
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Gossypium hirsutum L. · Upland cotton
ZERAIM GEDERA
Allium porrum L. · Leek
Domaine Public (FR)