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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.

Begonia boliviensis A. DC. · Bolivian begonia

Rijk Nadine

3 records

G14161

Active

Hypoestes phyllostachya Baker · Polka dot plant

Uchneat Michael S. / Palmer Irene E.

3 records

Calibrachoa Cerv. · Calibrachoa

Tobias Dümmen

3 records

Helleborus x ericsmithii

Josef Heuger

4 records

DLFJAMD3

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

3 records

CIVS115

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Michelangelo Leis^^^Alessio Martinelli

4 records

CARMENQ2

Active

Kalanchoe Adans. · Kalanchoe

Knud Jepsen

3 records

Ocimum basilicum L. · Basil

Udo Schäfer

4 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

PHUONG NGUYEN, MICHAEL D FERGUSON

3 records

Verbena L. · Vervain

Tobias Dümmen

3 records

Begonia boliviensis A. DC. · Bolivian begonia

Rijk Nadine

3 records

Ajuga reptans L. · Bugle

Tristram Mike|Arundel, West Sussex BN18 0LL, GB

3 records

Rubus idaeus L. · Red raspberry

Washington State University Puyallup Research and Extension Center

4 records

Beaudine

Active

Gerbera L. · Gerbera

Piet Schreurs Holding B.V.

3 records

Torenia L. · Bluewings

Gavriel Danziger

3 records

Bess

Terminated

Chrysanthemum pacificum Nakai · Pacific chrysanthemum

Andreas Niederländer

3 records

Beacon

Active

Festuca ovina L. · Sheep's fescue

Mountain View Seeds

4 records

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

4 records

Rudbeckia hirta L. · Black-eyed Susan

Hartwig Bull

4 records

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

NIELS ARTS

3 records

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

3 records

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Bernuetz Andrew|Silverdale, AU

3 records

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