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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Southern Seed s.r.l (IT)
Zea mays L. · Maize
Vicia faba L. var. major Harz · Broad bean
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Lactuca sativa L. · Lettuce
MERIDIEM SEEDS S.L.
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
ReinSaat KG
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Agri Obtentions SA (FR)/Institut National de la Recherche Agronomique (FR)
Cucumis melo L. · Melon
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Beta vulgaris Garden Beet Group · Garden beet
Hodowla Roslin Snowidza Sp.z.o.o
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Crop Protection AG
Cucumis melo L. · Melon
Gautier Semences SAS (FR)
Cucumis sativus L. · Cucumber
Brassica oleracea L. (White Cabbage Group) · White cabbage
THE KIBAN
Hordeum vulgare L. · Barley
Dr. Karl-Josef Müller
Trifolium subterraneum L. · Subterranean clover
WESTERN AUSTRALIA,DEP.AGR
Beta vulgaris Sugar Beet Group · Sugar beet
WIELKOPOLSKA HODOWLA BURAKA CUKROWEGO SP.Z.O.O
Solanum lycopersicum L. · Tomato
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Zea mays L. · Maize
KWS SAAT SE & CO.KGAA
Solanum melongena x Solanum torvum
TAKII EUROPE B V
Beta vulgaris Sugar Beet Group · Sugar beet
Khermann Shtrube
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Beta vulgaris Sugar Beet Group · Sugar beet
KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.
Capsicum annuum L. · Bell pepper
UNITED GENETICS SEEDS CO
Foeniculum vulgare Mill. · Fennel
LA SEMIORTO SEMENTI SRL