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.
Cucumis sativus L. · Cucumber
Havrysh Serhii Fedorovych, Dubinin Serhii Volodymyrovych,
Citrus sinensis (L.) Osbeck · Sweet orange
INCONNU (FR)
Allium cepa L. · Onion
UNITED GENETICS SEEDS CO
Cucumis melo L. · Melon
FRANCE GRAINES (FR)
Rosa L. · Rose
Pepinieres & Roseraies Dorieux GAEC (FR)
Brassica napus L. · Rapeseed
Teresa Huskowska
Zea mays L. · Maize
MONSANTO TECHNOLOGY
Rosa L. · Rose
Mark Gergely
Zea mays L. · Maize
MONSANTO TECHNOLOGY
Lactuca sativa L. · Lettuce
Domaine Public (FR)
Populus L. · Poplar
FCBA (FR)/Institut National de la Recherche Agronomique (FR)/Centre d'Exp du Machinisme Agricole Genie Rural Eaux & Foret (FR)
Populus L. · Poplar
FCBA (FR)/Institut National de la Recherche Agronomique (FR)/Centre d'Exp du Machinisme Agricole Genie Rural Eaux & Foret (FR)
Beta vulgaris Garden Beet Group · Garden beet
Domaine Public (FR)
Allium cepa L. · Onion
UNITED GENETICS SEEDS CO
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Benito Juarez
Solanum lycopersicum L. · Tomato
Jean Clause Mercier
Vitis L. · Grapevine
INCONNU (FR)
Beta vulgaris Fodder Beet Group · Mangelwurzel
Malopolska Hodowla Roslin Spolka z o.o.
Triticum aestivum L. · Bread wheat
MAHISSA
Lactuca sativa L. · Lettuce
MERIDIEM SEEDS S.L.
Raphanus sativus L. var. sativus · Radish
Hazera Seeds B.V.
Helianthus annuus L. · Sunflower
Kyrychenko Maryna Serhiivna, Babych Viktoriia Olehivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych,
Solanum lycopersicum L. · Tomato
FLORANOVA LTD
Gossypium hirsutum L. · Upland cotton
BALTZIS NIKOLAOS (GR)