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.
Solanum lycopersicum L. · Tomato
ROYAL SLUIS
Brassica oleracea L. (White Cabbage Group) · White cabbage
Kees Broersen Zaden
Zea mays L. subsp. mays (Maize Group) · Maize
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Zea mays L. · Maize
Syngenta participation AG
Zea mays L. subsp. mays (Maize Group) · Maize
SAATBAU LINZ EGEN
Sorghum bicolor (L.) Moench · Sorghum
PIONEER HI-BRED INT
Zea mays L. · Maize
Stephane Melkior
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE&CO.KGaA, DE
Zea mays L. subsp. mays (Maize Group) · Maize
Maisadour Semences, FR
Malus Mill. · Apple
Fischer, M. / Fischer, C. / Murawski, H.
Brassica napus L. · Rapeseed
Konrad Kraling
Spinacia oleracea L. · Spinach
Semenarna Ljubljana, SI
Brassica napus var. napus · Rapeseed
KWS Momont Recherche Sarl
Zea mays L. · Maize
LIMAGRAIN EUROPE
Zea mays L. · Maize
MAS SEEDS
Zea mays L. subsp. mays (Maize Group) · Maize
RAGT 2n, FR
Rosa L. · Rose
Meilland, Marie-Louise
Zea mays L. · Maize
Rainer Leipert
Zea mays L. · Maize
Rainer Leipert
Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum
KWS SAAT SE&CO.KGaA, DE
Zea mays L. · Maize
SeedGenetic GmbH
Brassica napus L. · Rapeseed
Raps GbR