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 GENETICS GRANDES CULTURES S.A.
Zea mays L. · Maize
MAS SEEDS
Zea mays L. · Maize
MAS SEEDS
Zea mays L. · Maize
Roelf Suk
Oryza sativa L. · Rice
NECMI BESER, HALIL SUREK
Zea mays L. · Maize
Joel Meunier
Helianthus annuus L. · Sunflower
Roberto Reid
Helianthus annuus L. · Sunflower
Advanta Seeds International
Helianthus annuus L. · Sunflower
SINISA JOCIC / SANDRA CVEJIC / GORAN MALIDZA / DRAGANA MILADINOVIC / VLADIMIR MIKLIC / NENAD DUSANIC
Helianthus annuus L. · Sunflower
Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Malidza Goran, Tsveich Sandra, Jocic Sinisa,
Hordeum vulgare L. · Barley
Ragt, F
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
The Regents of the University of California
Rosa L. · Rose
MEILLAND ALAIN ANTOINE
Trifolium repens L. · White clover
DLF, DK
Hordeum vulgare L. · Barley
Saaten-Union
Poa pratensis L. · Kentucky bluegrass
Innoseeds bv (NL)
Festuca pratensis Huds. · Meadow fescue
PRODANA SEED A/S - DLF SEEDS A/S
Pisum sativum L. · Pea
Paul Degreef
Solanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico BV
Festuca rubra L. · Red fescue
PRODANA SEEDS A/S (DK)
Solanum tuberosum L. · Potato
Van Rijn Group
Alstroemeria L. · Alstroemeria
van Zanten Plants b.v
Rubus idaeus L. · Red raspberry
The New Zealand Institute for Plant and Food Research
Secale cereale L. · Rye
Saaten-Union