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.
Capsicum annuum L. · Bell pepper
Fejleszto KFJ-Kaloesa (HU)
Zea mays L. · Maize
ZOULIAMIS PAVLOS
Brassica napus var. napus · Rapeseed
KAISER JUTTA
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Solanum lycopersicum L. · Tomato
Vilmorin, F
Zea mays L. · Maize
ZOULIAMIS PAVLOS
Triticum aestivum L. · Bread wheat
S.A.R.L. SOGROUP
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.
Lactuca sativa L. · Lettuce
ROYAL SLUIS
Prunus domestica L. · European plum
Walter Hartmann
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Festuca rubra L. · Red fescue
LIMAGRAIN GENETICS GRANDES CULTURES
Triticum aestivum L. · Bread wheat
Trigen Seed LLC
Helianthus annuus L. · Sunflower
Novisad Institute (RS)
Helianthus annuus L. · Sunflower
Roberto Reid V'iacheslav Baranenko
Helianthus annuus L. · Sunflower
Institute of Field & Vegetable Crops (RS)
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed GmbH (DE)
Pisum sativum L. · Pea
Vasylenko Antonina Oleksandrivna, Bezuhlyi Ihor Mykolaiovych, Lubko Maryna Vasylivna, Parii IAroslav Fedorovych, Rusavskyi Vladyslav Leonidovych, Iliuchenko Oleksandr Serhiiovych, Parii Myroslav Fedorovych, Parii IUliia Oleksandrivna, Parii Fedir Mykytovy
Citrus reticulata Blanco · Mandarin orange
Gmitter, JR. Frederick G.
Medicago sativa L. · Alfalfa
THE UNIVERSITY OF QUEENSLAND ST. LUCIA CAMPUS
Poa pratensis L. · Kentucky bluegrass
TURF-SEED INC
Trifolium pratense L. · Red clover
Instituto de Investigaciones Agropecuarias