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
Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Zea mays L. subsp. mays (Maize Group) · Maize
MONSANTO TECHNOLOGY
Cucumis melo L. · Melon
Moshe Zalsman
Zea mays L. · Maize
MAS SEEDS
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum melongena L. · Eggplant
Naboka Liliia Vasylivna, Shabetia Viktor Volodymyrovych, Shabetia Oksana Mykolaivna,
Solanum lycopersicum L. var. lycopersicum · Tomato
SOUTHERN SEED S.R.L.
Persea americana Mill. · Avocado
LUISA GALLO LLOBET
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Yutaka Ishii
Cucumis melo L. · Melon
Shevchenko Igor
Beta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed ApS, DK
Brassica oleracea L. (White Cabbage Group) · White cabbage
Shevchenko Igor
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu "Ahronasinniaprom"
Vitis L. · Grapevine
INCONNU (FR)
Vitis L. · Grapevine
INCONNU (FR)
Ilex crenata Thunb. · Japanese holly
Josa Selecties B.V.
Humulus lupulus L. · Common hop
Anton Lutz
Vitis vinifera L. · Common grape vine
Vivai Cooperativi di Rauscedo (VCR)
Populus maximowiczii x Populus trichocarpa
Nordwestdeutsche Forstliche Versuchsanstalt Abt. Waldgenressourcen
Helleborus niger L. · Christmas rose
Hortimarket B.V.
Celosia argentea L. var. cristata (L.) Kuntze · Cockscomb
Evanthia B.V.
Begonia L. · Begonia
Ernst Benary Samenzucht GmbH
Cucumis sativus L. · Cucumber
Petr Klapshte, Petr Horal, Yirzhi Horal,