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.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Enza Zaden Veheer B.V.
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Zea mays L. · Maize
Syngenta participation AG
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Brassica napus var. napus · Rapeseed
SEMUNDO| SW Seed GmbH
Solanum lycopersicum L. · Tomato
ESASEM S.p.A
Deschampsia cespitosa (L.) P. Beauv. · Tufted hairgrass
Vera Svabova c/o Oseva, Vsup Troubsko Slechtitelska stanice Vetrov / Ing. Ivo Nasinec c/o Oseva, Vsup Troubsko Zuchtstation Vetrov / Dipl.-Ing. Jiri Bumerl c/o TAGRO Cerveny Dvur, s.r.o.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE Finanzbuchhaltung
Zea mays L. subsp. mays (Maize Group) · Maize
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Zea mays L. · Maize
Poljoprivredni Institut Osijek, HR
Zea mays L. subsp. mays (Maize Group) · Maize
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Solanum lycopersicum L. · Tomato
VISSUM RESE
Cichorium endivia L. · Endive
Enza Zaden Beheer B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Hybrids Ellas Abee
Solanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
Brassica oleracea L. (White Cabbage Group) · White cabbage
Twan Groot
Pelargonium L'Hér. ex Ait. · Geranium
GOLDSMITH SEEDS Inc. (USA) (US)
Beta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed APS
Beta vulgaris Fodder Beet Group · Mangelwurzel
KWS SAAT SE&CO.KGaA, DE
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Solanum lycopersicum L. · Tomato
ENZA ZADEN B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE Finanzbuchhaltung
Phaseolus vulgaris L. · Common bean
VILMORIN, S.A.
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S