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.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Twan Groot
Brassica napus var. napus · Rapeseed
RAGT 2n
Hordeum vulgare L. · Barley
Poljoprivredni Institut Osijek, HR
Zea mays L. · Maize
Roland Debeuf
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM Clause Inc (US)
Zea mays L. · Maize
LIMAGRAIN EUROPE S.A.
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Helianthus annuus L. · Sunflower
MAS SEEDS
Zea mays L. · Maize
MAS SEEDS
Zea mays L. · Maize
Joel Meunier
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Capsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Zea mays L. · Maize
RAGT 2N S.A.S
Solanum lycopersicum L. · Tomato
Paul Degreef
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
Sina Isabell Strube
Solanum tuberosum L. · Potato
CAITHNESS POTATO BREEDERS LTD
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Participations AG| CH
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Crop Protection AG, CH
Zea mays L. subsp. mays (Maize Group) · Maize
Pau Semences SA (FR)
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Zea mays L. · Maize
Bruno Lefevre