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.
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Helianthus annuus L. · Sunflower
Euralis Semences FR
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Zea mays L. · Maize
Monsanto Technology, USA
Zea mays L. · Maize
Monsanto Technology, USA
Helianthus annuus L. · Sunflower
Petran Alexandru-Viorel
Triticum aestivum L. · Bread wheat
APSOVSEMENTI S.P.A.
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Triticum durum Desf. · Durum wheat
VENTUROLI VITTORIO
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV, NL
Triticum durum Desf. · Durum wheat
Syngenta Participations AG
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR
Triticum durum Desf. · Durum wheat
F.lli Cozzi S.R.L.
Zea mays L. · Maize
SEMILLAS FITO' S.A.
Cannabis sativa L. · Hemp
Verve Seed Solutions
Triticum aestivum L. · Bread wheat
Centrum výskumu rastlinnej výroby (CVRV) Pieštany
Glycine max (L.) Merr. · Soybean
Delta agrar, Beograd
Helianthus annuus L. · Sunflower
CORN STATES INTERNATIONAL SARL
Oryza sativa L. · Rice
Giampiero Vale^^^Elisabetta Lupotto
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Triticum durum Desf. · Durum wheat
REGAL SEMENTI SRL
Triticum durum Desf. · Durum wheat
Syngenta Participations AG