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.
Vicia faba L. · Broad bean
DLF SEEDS A/S
Solanum lycopersicum L. · Tomato
Paul Degreef
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Brassica napus var. napus · Rapeseed
RAGT 2n, FR
Zea mays L. · Maize
LIDEA FRANCE SAS
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE&CO.KGaA, DE
Glycine max (L.) Merr. · Soybean
SAATZUCHT DONAU GES.M.B.H. & COKG
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Beta vulgaris Sugar Beet Group · Sugar beet
Strube-Dieckmann GmbH and Co.KG Dr. Hermann Strube
Trifolium vesiculosum Savi · Arrowleaf clover
Seed Technology & Marketing Pty Ltd
Helianthus annuus L. · Sunflower
Prograin Genetique (FR)
Festuca arundinacea Schreb. · Tall fescue
Theodorus P.M. op den Kamp
Zea mays L. · Maize
SAATBAU LINZ EGEN
Poa pratensis L. · Kentucky bluegrass
DLF Trifolium A-S, DK
x Triticosecale Wittm. ex A. Camus · Triticale
ZDHAR Malyszin (PL)
Brassica oleracea L. (White Cabbage Group) · White cabbage
SYNGENTA SEEDS B.V.
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Brassica napus var. napus · Rapeseed
RAGT 2n, FR
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Cucumis sativus L. · Cucumber
BLINOVA Tatiana, MD STRLNICOVA Tamara, MD MASTACOVA Anna, MD
Helianthus annuus L. · Sunflower
Verneuil Recherche SA (FR)
Cucumis sativus L. · Cucumber
RIJK ZWAAN WELVER GMBH
Glycine max (L.) Merr. · Soybean
Claude-Alain Bétrix