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Variety traits

Tolerance

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.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

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.

Classe

Active

Medicago sativa L. · Alfalfa

IT
3 records

Solanum lycopersicum L. var. lycopersicum · Tomato

HU
4 records

Concorde

Active

Helianthus annuus L. · Sunflower

IT
4 records

Triticum aestivum L. · Bread wheat

FI
4 records

Barfriso

Terminated

Lolium perenne L. · Perennial ryegrass

DE
3 records

Caroline CLP

Protection expired

Helianthus annuus L. · Sunflower

RO
3 records

Bowing

Active

Cucumis sativus L. · Cucumber

NL
3 records

Bivoy

Protection expired

Hordeum vulgare L. · Barley

HU
3 records

Buzogany

Active

Triticum aestivum L. · Bread wheat

HU
3 records

Hordeum vulgare L. · Barley

FI
4 records

Blade

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

NL
4 records

Medicago sativa L. · Alfalfa

IT
3 records

Arteon CL

Protection expired

Helianthus annuus L. · Sunflower

RO
3 records

Biharia

Active

Triticum aestivum L. · Bread wheat

RO
3 records

Astera

Active

Brassica oleracea L. (Kale Group) · Kale

CZ
4 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

3 records

Vajai 1

Active

Lupinus albus L. · White lupin

HU
3 records

Venus

Active

Glycine max (L.) Merr. · Soybean

IT
4 records

Tresor

Active

Capsicum annuum L. · Bell pepper

NL
3 records

Soyard

Protection expired

Triticum aestivum L. · Bread wheat

RO
3 records

Rita

Terminated

Triticum aestivum L. · Bread wheat

IT
3 records

Putna

Active

Triticum aestivum L. · Bread wheat

RO
3 records

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