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.
Festuca rubra L. · Red fescue
DLF-TRIFOLIUM| DLF-Trifolium A/S
Glycine max (L.) Merr. · Soybean
Lidea France S.A.S
Helianthus annuus L. · Sunflower
Syngenta Participations,CH
Festuca rubra L. · Red fescue
Euro Grass Breeding GmbH Co. KG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
ZETA SEEDS S.L.
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Glycine max (L.) Merr. · Soybean
Lidea France S.A.S
Trifolium resupinatum L. · Persian clover
D'Eugenio Sementi s.r.l.
Helianthus annuus L. · Sunflower
Euralis Semences FR
Pyrus communis L. · European pear
UNIVERSITY OF CALIFORNIA (US)
Festuca arundinacea Schreb. · Tall fescue
PICKSEED WEST INC
Capsicum annuum L. · Bell pepper
Uve Diksen
Brassica napus var. napus · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Cucumis sativus L. · Cucumber
Rijk Zwaan Budapest, H
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE NV-SA, BE
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Ger Beemsterboer
Pyrus communis L. · European pear
Festuca arundinacea Schreb. · Tall fescue
Barenbrug Holland BV (NL)
Prunus armeniaca L. · Apricot
Washington State University Research Foundation (US)
Triticum aestivum L. · Bread wheat
LIDEA FRANCE SAS
Hordeum vulgare L. · Barley
Poznanska Hodowla Roslin Sp. z o.o
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Cucumis sativus L. · Cucumber
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