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.
Helianthus annuus L. · Sunflower
Glycine max (L.) Merr. · Soybean
Lidea Frances SAS, F
Pisum sativum L. · Pea
Lonnet Philippe
Hordeum vulgare L. · Barley
Saatzucht Donau GmbH & Co.KG
Triticum durum Desf. · Durum wheat
LIMAGRAIN EUROPE S.A.
Daucus carota L. · Carrot
HM.CLAUSE
Helianthus annuus L. · Sunflower
Quality Crops Agro, RO
Triticum aestivum L. · Bread wheat
Syngenta Seeds SAS, FR
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
KWS SAAT SE and CO KGAA
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
ROUCOLLE JOEL
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans Georg Lembke KG,DE
Allium cepa L. var. cepa · Onion
Bejo Zaden BV (NL)
Brassica napus L. · Rapeseed
NICKERSON INTERNATIONAL RESEARCH SNC
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE, Einbeck DE
Zea mays L. · Maize
LIDEA FRANCE SAS
Zea mays L. subsp. mays (Maize Group) · Maize
SYNGENTA SEEDS AG, CH
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Crop Protection AG
Zea mays L. subsp. mays (Maize Group) · Maize
SYNGENTA SEEDS AG, CH
Brassica napus var. napus · Rapeseed
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
MAS SEEDS
Triticum aestivum L. · Bread wheat
Lantmaennen ek foer
Zea mays L. · Maize
Syngenta Crop Protection AG