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.
Triticum aestivum L. · Bread wheat
Florimond Desprez Veuve et Fils, FR
Brassica oleracea L. (White Cabbage Group) · White cabbage
Sakata Seed Corporation, JP
Lolium perenne L. · Perennial ryegrass
ILVO-PLANT 39
Daucus carota L. · Carrot
BEJO ZADEN
Zea mays L. · Maize
LIMAGRAIN EUROPE
Brassica oleracea L. (White Cabbage Group) · White cabbage
HORAL JIRI / KLAPSTE PETR / MOHELSKA JANA
Brassica napus var. napus · Rapeseed
Limagrain Europe, FR
Cucumis sativus L. · Cucumber
Seminis Vegetable Seeds
Cucumis sativus L. · Cucumber
Selekcijos ir sėklininkystės firma ,,Manul"
Brassica oleracea L. (White Cabbage Group) · White cabbage
HM.CLAUSE
Glycine max (L.) Merr. · Soybean
Poljoprivredni Institut Osijek, HR
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Universität Hohenheim Landessaatzuchtanstalt 720
Helianthus annuus L. · Sunflower
ISEA S.P.A.
Glycine max (L.) Merr. · Soybean
Lidea France S.A.S
Zea mays L. · Maize
NOVARTIS SEEDS S.A.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Cora Seeds SRL, I
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Vaccinium corymbosum L. · Highbush blueberry
USDA, USA
Allium porrum L. · Leek
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderhave NV
Cucumis melo L. · Melon
Syngenta Seeds B.V.
Helianthus annuus L. · Sunflower
MAS SEEDS
Hordeum vulgare L. · Barley
Limagrain Europe S.A.S
Cucurbita pepo L. · Field pumpkin
SAKATA SEED SUDAMERICA LTDA