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.
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TD SANTREID LTD»
Solanum lycopersicum L. · Tomato
Petoseed Co INC (US)
Beta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed APS
Solanum lycopersicum L. · Tomato
Mercier Jean-Claude
Triticum aestivum L. · Bread wheat
AGRI-OBTENTIONS
Cucumis sativus L. · Cucumber
Shamshyna Anna Viacheslavivna, Portiankin Alieksiei IEvhenovych, Shevieliev Viacheslav Viacheslavovych, Havrysh Serhii Fedorovych,
Oryza sativa L. · Rice
LUGANO LEONARDO SRL
Brassica oleracea L. (White Cabbage Group) · White cabbage
Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Capsicum annuum L. · Bell pepper
DE RUITER SEEDS
Zea mays L. subsp. mays (Maize Group) · Maize
Asgrow France SA (FR)
Daucus carota L. · Carrot
Daniel Gabillard
Brassica napus var. napus · Rapeseed
Semences Cargill SA (FR)/Deutsche Saatveredelung AG - DSV (DE)
Helianthus annuus L. · Sunflower
VERNEUIL RECHERCHE
Prunus x gondouinii (Poit. & Turpin) Rehder · Duke cherry
INCONNU (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Brassica oleracea L. (White Cabbage Group) · White cabbage
Seminis Vegetables (NL)
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderhave NV
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
GOLDSMITH SEEDS
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
Festuca rubra L. · Red fescue
LEBANON TURF
Helianthus annuus L. · Sunflower
David Mogford
Helianthus annuus L. · Sunflower
Stots`kyi Viktor Pavlovych
Vigna radiata (L.) R. Wilczek · Mung bean
BREZEANU CREOLABREZEANU PETRE MARIANAMBARUS SILVICA
Solanum melongena L. · Eggplant
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR