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
Karapira Serhii Ivanovych, Varenyk Borys Fedorovych, Babich Valerii Ivanovych, Hanzhelo Mykola Hryhorovych, Libenko Mykola Oleksandrovych, Krut`ko Vasyl` Ivanovych, Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Syvenko Valentyna Ivanivna, Kuz
Triticum aestivum L. · Bread wheat
Orsem SA (FR)
Festuca arundinacea Schreb. · Tall fescue
BARENBRUG HOLLAND B.V.
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Lactuca sativa L. · Lettuce
Domaine Public (FR)
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Bakker Brothers Seeds
Allium cepa L. · Onion
Shabetia Oksana Mykolaivna, Shabetia Viktor Volodymyrovych,
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
CORA SEEDS S.R.L
Petunia Juss. · Petunia
Výzkumný ústav pro krajinu, v. v. i. (CZ)
Capsicum annuum L. · Bell pepper
Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Medicago sativa L. · Alfalfa
South Australian Research and Development Institut (AU)
Callistephus chinensis (L.) Nees · China aster
PlantiCo Hodowla i Nasiennictwo Ogrodnicze Szymanów Sp. z o.o.
Beta vulgaris Sugar Beet Group · Sugar beet
Khart Rodzher Evelin
Helianthus annuus L. · Sunflower
Malinovskyi Serhii Volodymyrovych
Zea mays L. subsp. mays (Maize Group) · Maize
Dr Franck (DE)
Brassica oleracea L. (Broccoli Group) · Broccoli
Bakker Brothers Seeds
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Dymchenko, Tetiana Muzhylko, Viktor
Hordeum vulgare L. · Barley
Serasem, FR
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu "KMK AHRO"
Brassica oleracea L. (White Cabbage Group) · White cabbage
Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Helianthus annuus L. · Sunflower
FREIHERR VON MOREAU SAATZUCHT
Prunus persica (L.) Batsch · Peach
C.N.DELLE RICERCHE
Castanea sativa Mill. · Sweet chestnut
Biotehniška fakulteta, Oddelek za agronomijo
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM.CLAUSE