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
Balalic Igor, Miklic Vladimir, Miladinovic Dragana, Cvejic Sandra, Jocic Sinisa,
Helianthus annuus L. · Sunflower
Miclic Vladimir, Gvozdenovic Sandra, Jocic Sinisa,
Triticum aestivum L. · Bread wheat
Rybalka Oleksandr Illich, Babaiants Lazar Tihranovych, Reshetnikova Valentyna Semenivna, Kostiuk Stanislav Vasyl`ovych, Holub IEvheniia Anatoliivna, Rubakha Serhii Andriiovych, Lytvynenko Raisa Ivanivna, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Ant
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Capsicum annuum L. · Bell pepper
Institut za ratarstvo i povrtarstvo, Novi Sad (RS)
Zea mays L. · Maize
Syngenta Seeds
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Crop Protection AG, Seeds Division, CH
Helianthus annuus L. · Sunflower
Miklic Vladimir, Jockovic Milan, Miladinovic Dragana, Tsveich Sandra, Jocic Sinisa,
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
ISI SEMENTI SPA
Cucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
Triticum durum Desf. · Durum wheat
MTA Agrártudományi Kutatóközpont MGI, Martonvásár
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Ken Christensen
Sorghum bicolor (L.) Moench · Sorghum
David Thomas
Triticum aestivum L. · Bread wheat
Oregon State University
Beta vulgaris Sugar Beet Group · Sugar beet
DELITZSCH PFLANZENZUCHT
Allium cepa L. var. aggregatum G. Don · Shallot
SCEA Glidic Arnaud (FR)
Lactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
Solanum lycopersicum L. · Tomato
Manier Tohumculuk
Helianthus annuus L. · Sunflower
Mykhno Mykola Viacheslavovych
Malus domestica (Suckow) Borkh. · Apple
VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o. (CZ)
Cucumis melo L. · Melon
Moshe Zalsman
Cucumis melo L. · Melon
SEMILLAS FITO, S.A.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
Nunhems B.V.