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 napus var. napus · Rapeseed
SCA ADRIEN MOMONT & FILS
Zea mays L. · Maize
Syngenta Participations,CH
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Participations AG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Leviel
Medicago sativa L. · Alfalfa
Szarvasi Medicago (HU)
Brassica oleracea L. (White Cabbage Group) · White cabbage
HAZERA SEEDS B.V.
Allium cepa L. · Onion
Ger Beemsterboer
Zea mays L. · Maize
Syngenta Crop Protection,CH
Glycine max (L.) Merr. · Soybean
Stine Harry
Zea mays L. · Maize
Syngenta Participations,CH
Solanum lycopersicum L. · Tomato
GSN Semences SAS (FR)
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Asparagus officinalis L. · Asparagus
The State University of New Jersey - Rutgers (US)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Twan Groot
x Festulolium Aschers. et Graebn. · Festulolium
HODOWLA ROSLIN SZELEJEWO- DR. WOJEICH MIKULSKI
Glycine max (L.) Merr. · Soybean
Poljoprivredni Institut Osijek, HR
Glycine max (L.) Merr. · Soybean
Semences Prograin Inc
Capsicum annuum L. · Bell pepper
Nunhems B.V.
Cucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.
Pelargonium L'Hér. ex Ait. · Geranium
Hofmann, Christa|Dresden, Federal Republic of Germany
Zea mays L. · Maize
Pinter Zoltan / Gyulavari Oszkar / Szel Sandor / Kalman Laszlo / Devenyi Karolyne
Beta vulgaris Sugar Beet Group · Sugar beet
MARIBO SEED INT. APS
Helianthus annuus L. · Sunflower
SYNGENTA SEEDS A.G.