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.
Raphanus sativus L. var. sativus · Radish
Hazera Seeds B.V.
Allium cepa L. var. cepa · Onion
Hazera Seeds B.V.
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Osteospermum L. · Osteospermum
SOERENSEN CARL| Carl Aksel Kragh Soerensen c/o Gartneriet Petersminde
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Jan Draaistra
Beta vulgaris L. · Beet
Strube D&S GMBH
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Participations AG| CH
Solanum tuberosum L. · Potato
Stephan Berger^^^JOSEF BERGER
Allium cepa L. · Onion
Willem van Haerke
Triticum aestivum L. · Bread wheat
Ohio Agricultural Research and Development Center, Ohio State University
Cucumis melo L. · Melon
Sakata Seed Corporation, JP
Zea mays L. · Maize
Saaten-Union
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Cucurbita pepo L. · Field pumpkin
Khuan Tsastro
Lactuca sativa L. · Lettuce
BEJO ZADEN
Zea mays L. · Maize
Syngenta Crop Protection AG
Brassica oleracea L. (White Cabbage Group) · White cabbage
Meinardus P.Boon
Zea mays L. · Maize
Syngenta participation AG
Phaseolus vulgaris L. · Common bean
POP VRIEND ZAADTEELT EN ZAADHANDEL B.V.
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Pisum sativum L. · Pea
Seminis Vegetable Seeds
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Beta vulgaris Sugar Beet Group · Sugar beet
DIECKMANN| Ulrich Dieckmann