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.
Helianthus annuus L. · Sunflower
Saaten Union Romania, RO
Brassica oleracea L. (Broccoli Group) · Broccoli
MAURIZIO BACCHI
Zea mays L. · Maize
MAS SEEDS
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Brassica oleracea L. (White Cabbage Group) · White cabbage
Sakata Seed Corporation, JP
Glycine max (L.) Merr. · Soybean
Sylvain Legay
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Seeds B.V.
Triticum aestivum L. · Bread wheat
Limagrain Europe S.A.S. (FR)
Cucumis sativus L. · Cucumber
Monsanto Vegetable IP Management B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV, NL
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Festuca rubra L. · Red fescue
Weibull, Peder
Vicia sativa L. · Common vetch
RAGT 2n
Hordeum vulgare L. · Barley
Limagrain UK
Zea mays L. · Maize
LEIPERT RAINER
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK
Festuca arundinacea Schreb. · Tall fescue
Barenbrug USA
Lolium perenne L. · Perennial ryegrass
Feldsaaten Freudenberger GmbH&Co.KG
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Zea mays L. · Maize
Rainer Leiper
Cucumis sativus L. · Cucumber
Luis Mullor Torres
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Festuca rubra L. · Red fescue
DLF SEEDS A/S