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.
Valerianella locusta (L.) Laterr. · Corn salad
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lolium perenne L. · Perennial ryegrass
PROSEEDS MARKETING
Triticum durum Desf. · Durum wheat
VENTUROLI E BENOIST - ORGERUS
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
Syngenta UK Ltd
Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Secale cereale L. · Rye
Poznanska Hodowla Roslin Sp. z o.o
Zea mays L. · Maize
Caussade Semences, F
Triticum aestivum L. · Bread wheat
SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAGIURA AUREL
Brassica oleracea L. (Broccoli Group) · Broccoli
HM.CLAUSE
Solanum lycopersicum L. · Tomato
Cora Seeds, I
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Cucumis sativus L. · Cucumber
Syngenta Seeds B.V.
Valerianella locusta (L.) Laterr. · Corn salad
Graines Voltz S.A.
Solanum lycopersicum L. · Tomato
Nongwoo Bio, Korea
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Capsicum annuum L. · Bell pepper
SEMILLAS FITO, S.A.
Beta vulgaris Garden Beet Group · Garden beet
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Linum usitatissimum L. · Common flax
Linéa Semences de Lin G.I.E.
Helianthus annuus L. · Sunflower
STRUBE ESPAÑA, S.A.
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Poa pratensis L. · Kentucky bluegrass
DEUTSCHE SAATVEREDELUNG AG
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL