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.
Lactuca sativa L. · Lettuce
CLAUSE, S.A.
Apium graveolens L. · Celery
Wing Seed, NL
Solanum lycopersicum L. · Tomato
Clause Tezier S.A., Bretigny (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Avena nuda L. · Naked oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Hordeum vulgare L. · Barley
Poljoprivredni Institut Osijek, HR
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE Finanzbuchhaltung
Malus Mill. · Apple
SVERIGES LANTBRUKSUNIVERSITÄTET
Cucumis sativus L. · Cucumber
SUNSEEDS
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
IAN THOMPSON
Lactuca sativa L. · Lettuce
Graines Gautier SA (FR)
Solanum tuberosum L. · Potato
VAN DER VEEN J.
Malus domestica (Suckow) Borkh. · Apple
SEMPRA PRAHA A S
Festuca arundinacea Schreb. · Tall fescue
RUTGERS UNIVERSITY OF NEW JERSEY
Solanum lycopersicum L. · Tomato
WESTERN SEED ESPAÑA, S.A.
Oryza sativa L. · Rice
S.I.S. SOCIETA' ITALIANA SEMENTI
Brassica napus L. · Rapeseed
Reinhard Hemker
Triticum durum Desf. · Durum wheat
RAGT 2N S.A.S
Lactuca sativa L. · Lettuce
ROYAL SLUIS
Cucumis melo L. · Melon
Syngenta Seeds B.V.
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
x Triticosecale Wittm. ex A. Camus · Triticale
ISEA S.R.L
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
RAGT 2n