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. (White Cabbage Group) · White cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
KWS SAAT SE & CO.KGAA
Cucumis melo L. · Melon
Ralf Kuijpers
Zea mays L. · Maize
KWS Saat AG, DE
Capsicum annuum L. · Bell pepper
Yordan Todorov, Stoyka Masheva, Velichka Todorova, Lozina Georgieva
Beta vulgaris Sugar Beet Group · Sugar beet
KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum tuberosum L. · Potato
SATIVA (CZ)
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE
Brassica napus L. · Rapeseed
LIMAGRAIN EUROPE
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Jen Marzu
Capsicum annuum L. · Bell pepper
NUNZA BV
Beta vulgaris Fodder Beet Group · Mangelwurzel
KWS SAAT SE & CO.KGAA
Fragaria L. · Strawberry
VISSERS AARDBEI PLANTEN B.V.
Solanum tuberosum L. · Potato
Europlant Innovation GmbH & Co. KG
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Zea mays L. · Maize
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Solanum lycopersicum L. · Tomato
DE RUITER SEEDS
Capsicum annuum L. · Bell pepper
ZKI, H
Beta vulgaris Sugar Beet Group · Sugar beet
Zajac Elzbieta, Hass Zofia, Gacarzewicz Jan, Szreder Adam,
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
PETOSEED CO
Beta vulgaris L. · Beet
KWS SAAT SE and CO KGAA
Triticum aestivum L. · Bread wheat
SELGEN, a.s. (CZ)/Vyzkumne centrum SELTON, s.r.o.