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.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
Monsanto Technology, USA
Helianthus annuus L. · Sunflower
Saaten Union, RO
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLD.
Pisum sativum L. · Pea
Výzkumné Centrum Selton s.r.o., Selgen A.S.
Triticum aestivum L. · Bread wheat
Syngenta Participations,CH
Helianthus annuus L. · Sunflower
Ragt 2n, F
Triticum aestivum L. · Bread wheat
Syngenta Participations AG| CH
Glycine max (L.) Merr. · Soybean
Universität Hohenheim Landessaatzuchtanstalt 720
Triticum durum Desf. · Durum wheat
Societa Produttori Sementi S.p.A
Glycine max (L.) Merr. · Soybean
STINE SEED Co, USA
Brassica oleracea L. (White Cabbage Group) · White cabbage
Bejo Zaden BV (NL)
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
x Triticosecale Wittm. ex A. Camus · Triticale
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Pisum sativum L. · Pea
Limagrain UK
Brassica oleracea L. (White Cabbage Group) · White cabbage
SYNGENTA SEEDS B.V.
Glycine max (L.) Merr. · Soybean
Holmberg, Sven A
Helianthus annuus L. · Sunflower
Euralis Semences FR
Helianthus annuus L. · Sunflower
Strube España S.A.
Zea mays L. · Maize
Pierre CAROLO
Sorghum bicolor (L.) Moench · Sorghum
Franck CHAUVEAU
Triticum aestivum L. · Bread wheat
Borislav Kobiljski
Triticum aestivum L. · Bread wheat
UNIGENETIC (BG)
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG