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.
Zea mays L. · Maize
LIMAGRAIN EUROPE S.A.
Capsicum annuum L. · Bell pepper
Moshe Zalsman
Lactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE, N.V./S.A.
Vicia faba L. var. major Harz · Broad bean
Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Zea mays L. · Maize
Szilagyi Laszlo / Pinter Zoltan / Balassa Gyoergy / Szel Sandor / Kalman Laszlo / Szell Endre
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Brassica napus L. · Rapeseed
Syngenta Participations AG
Zea mays L. · Maize
LIDEA FRANCE SAS
Beta vulgaris Fodder Beet Group · Mangelwurzel
SAS FLORIMOND-DESPREZ Veuve et Fils
Daucus carota L. · Carrot
Bejo Zaden B.V.
Cucurbita pepo L. · Field pumpkin
Saatzucht Gleisdorf
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Zea mays L. · Maize
NORDSAAT| NORDSAAT Saatzuchtgesellschaft mbH
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Capsicum annuum L. · Bell pepper
DE RUITER SEEDS
Cucurbita pepo L. · Field pumpkin
Saatzucht Gleisdorf
Festuca arundinacea Schreb. · Tall fescue
DLF-Trifolium (DK)
Sorghum bicolor (L.) Moench · Sorghum
Siklosine dr. Rajki Erzsebet / Kazi Ignac
Beta vulgaris Sugar Beet Group · Sugar beet
MariboHilleshög ApS
Solanum lycopersicum L. var. lycopersicum · Tomato
Wim SNIJDERS, NL
Zea mays L. · Maize
Rene Baratin