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
Florimond Desprez Veuve et Fils, FR
Allium cepa L. var. cepa · Onion
Zoldesegtermesztesi Kutato Intezet RT (HU)
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Populus L. · Poplar
AMINAL-INSTITUUT BOSBOUW EN WILDBEHEER E.V.
Zea mays L. · Maize
SAATBAU LINZ EGEN
Zea mays L. · Maize
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
AGRA SEED RESEARCH INTERN
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. · Maize
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Zea mays L. · Maize
Syngenta Crop Protection AG
Hordeum vulgare L. · Barley
Syngenta Crop Protection AG, CH
Beta vulgaris L. · Beet
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Beta vulgaris Sugar Beet Group · Sugar beet
Ann-Katrin Muennekhoff, Dietrich Hauer
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
Bruno Lefevre
Zea mays L. · Maize
Hodowla Roslin Smolice Sp Z.o.o.
Beta vulgaris L. · Beet
Piotr Serafin
Cucumis sativus L. · Cucumber
Robert Priieur
Cichorium intybus L. · Chicory
Beumen S.R.L (IT)
Zea mays L. · Maize
RAGT 2N S.A.S
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Prunus domestica L. · European plum
Trajkovski, Viktor