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
Nicolae Boaghe, Elena Andreea Teodorescu
Zea mays L. · Maize
Monsanto Technology, USA
Brassica oleracea L. (White Cabbage Group) · White cabbage
REED SEED (US)
Brassica napus var. napus · Rapeseed
KWS SAAT SE&CO.KGaA, DE
hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Syngenta Seeds B.V. - Legal department
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderHave N.V./S.A.
Hordeum vulgare L. · Barley
KWS MOMONT RECHERCHE S.A.R.L
Lactuca sativa L. · Lettuce
Victor Segura Juan
Solanum lycopersicum L. · Tomato
SVR, ZAF
Capsicum annuum L. · Bell pepper
ZKI, H
Solanum lycopersicum L. · Tomato
Monsanto Holland BV (NL)
x Triticosecale Wittm. ex A. Camus · Triticale
HODOWLA ROSLIN SZELEJEWO- DR. WOJEICH MIKULSKI
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderhave NV
Lactuca sativa L. · Lettuce
SUNSEEDS GENETICS INC
Solanum lycopersicum L. · Tomato
Monsanto Vegetable, NL
Salix L. · Willow
Stig Larsson
Cucumis sativus L. · Cucumber
NUNZA BV, NL
Triticum durum Desf. · Durum wheat
SEM.AGRICOLAS
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Capsicum annuum L. · Bell pepper
Mr. J.Rusko, HU
Cucumis sativus L. · Cucumber
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa Spolka Akcyjna w upadlosci likwidacyjnej
Capsicum annuum L. · Bell pepper
SABANCI METIN
Beta vulgaris Sugar Beet Group · Sugar beet
SYNGENTA WINTER OILSEED AB