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.
Lupinus angustifolius L. · Narrow-leaf lupin
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Capsicum annuum L. · Bell pepper
Clause Semences SA (FR)/Institut National de la Recherche Agronomique (FR)
Phaseolus vulgaris L. · Common bean
Michigan State University
Pisum sativum L. · Pea
Vilmorin-Mikado S.A.S.
Brassica napus var. napus · Rapeseed
KWS MOMONT RECHERCHE S.A.R.L
hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Rijk Zwaan Zaadteelt & Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Apium graveolens L. var. dulce (Mill.) Pers. · Celery
Harris Moran Seed Company
Glycine max (L.) Merr. · Soybean
Minnesota Agricultural Experiment Station
Phaseolus vulgaris L. · Common bean
Harris Moran Seed Company
Cucumis sativus L. · Cucumber
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Helianthus annuus L. · Sunflower
prof.Nina Nenova,prof.Galin Georgiev, prof.Valentina Encheva
Cucurbita pepo L. · Field pumpkin
Magnum Seeds Inc (US)
Rosa L. · Rose
MEILLAND STAR ROSE
Festuca rubra L. · Red fescue
DLF International Seeds (US)
Trifolium pratense L. · Red clover
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.
Prunus persica (L.) Batsch · Peach
Laurence Maillard, Arsene Maillard, Yes
Festuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
LEMAIRE DEFFONTAINES S.A.S.
Capsicum annuum L. · Bell pepper
Syngenta Crop Protection AG
Gossypium hirsutum L. · Upland cotton
Seed Source Inc.
Lactuca sativa L. · Lettuce
Nunhems B.V., 6083 AB Nunhem
Linum usitatissimum L. · Common flax
Linéa Semences de Lin G.I.E.