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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Hazera Genetics Ltd (IL)
Capsicum annuum L. · Bell pepper
ZKI, H
Zea mays L. · Maize
May Agro Seed Corp.(TR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
SC AGROSEL SRL, RO
Cucumis sativus L. · Cucumber
SYNGENTA SEEDS B.V.
Cichorium endivia L. · Endive
Henk Driessen
Helianthus annuus L. · Sunflower
Jose Carlos Ramos Aguilar
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE D and S GMBH
Helianthus annuus L. · Sunflower
Patrick Duhigg
Zea mays L. · Maize
RAGT 2n Center de Recherce, Rodez FR
Solanum melongena L. · Eggplant
Kees Reinink
Festuca rubra L. · Red fescue
Barenbrug Holland BV (NL)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Ger Beemsterboer
Pisum sativum L. · Pea
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Capsicum annuum L. · Bell pepper
RIJK ZWAAN WELVER GmbH, DE
Beta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed APS
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Cucumis sativus L. · Cucumber
RIJK ZWAAN Zaadteelt en Zaadhandel B.V.
Glycine max (L.) Merr. · Soybean
First Line Seeds Ltd (CA)
Hordeum vulgare L. · Barley
Sejet Planteforaedling I,S
Helianthus annuus L. · Sunflower
R 2n (FR)
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING