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.
Prunus cerasus L. · Sour cherry
Prof. Dr. Werner Gruppe (DE)/Prof. Dr. Hanna Schmidt (DE)
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
FRUEWIRTH FRANZ
Brassica napus L. · Rapeseed
Medeshi Ishtvan, Balazh Mikloshne, Varha Iozhefne, Nemetkhne Varha Anna, Takach Maria, Falushi IAnosh, Falushi IAnoshne,
Triticum aestivum L. · Bread wheat
Csoesz Laszlone / Purnhauser Laszlo / Cseuz Laszlo / Kertesz Zoltan / Mesterhazy Akos / Beke Bela / Bona Lajos / Becsey Magdolna / Kertesz Zoltanne / Papp Maria
Dahlia Cav. · Dahlia
Wielkopolska Hodowla Roślin Ogrodniczych
Brassica oleracea L. (White Cabbage Group) · White cabbage
Gerard Balder
Solanum lycopersicum L. · Tomato
Jean Clause Mercier
Chrysanthemum L. · Chrysanthemum
C.B.A Research B.V.
Helianthus annuus L. · Sunflower
Burlov Viktor Vasylovych
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Domaine Public (FR)
Cornus mas L. · Cornelian cherry
Arboretum i Zakład Fizjografii w Bolestraszycach
Vitis L. · Grapevine
INCONNU (FR)
Prunus cerasus L. · Sour cherry
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Solanum lycopersicum L. · Tomato
Mashtakov Mykola Oleksiiovych, Mashtakova Anna Kharlampiievna, Mashtakov Oleksii Oleksiiovych, Dubinin Serhii Volodymyrovych,
Medicago sativa L. · Alfalfa
Vincent Beguier
Phaseolus vulgaris L. · Common bean
Van Waveren Pflanzenzucht (DE)
Triticum aestivum L. · Bread wheat
Florimond Desprez Veuve et Fils, FR
Vitis vinifera L. · Common grape vine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Prunus avium (L.) L. · Sweet cherry
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Cucurbita maxima Duchesne · Giant pumpkin
RIJK ZWAAN Zaadteelt en Zaadhandel B.V.
Prunus cerasus L. · Sour cherry
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Triticum aestivum L. · Bread wheat
FLORIMOND DESPREZ VEUVE ET FILS
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
HORTICULTURE RESEARCH I.
Hybrids between Citrus x aurantium L. x Citrus trifoliata L.
IVIA