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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.

YAMOON

Active

Begonia L. · Begonia

Yates Frederic C.

3 records

Zalsance

Active

Alstroemeria L. · Alstroemeria

van Zanten Plants b.v

3 records

Viveleg

Active

Elaeagnus x ebbingei Boom

Vivies Christian|Toulouse, FR

3 records

Zonascarora

Application submitted

Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium

Syngenta Seeds B.V.

3 records

TNHEUNEL

Active

Heuchera L. · Coral Flower

Janet N. Egger

3 records

Twysport

Terminated

Festuca rubra L. · Red fescue

KWS UK LTD

3 records

USCALI17

Active

Calibrachoa Cerv. · Calibrachoa

Ushio Sakazaki

3 records

VER00323

Active

Hemerocallis L. · Daylily

Heemskerk Gerardus J. C. M.

3 records

Prunus salicina Lindl. · Japanese plum

Mowrey Bruce D.|Watsonville, CA / Cain David W.|Bakersfield, CA / Fear Carlos D.|Aptos, CA

4 records

USCALI48

Active

Calibrachoa Cerv. · Calibrachoa

Ushio Sakazaki

3 records

Leucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy

Hansen Hans A

3 records

Verbena L. · Vervain

Yomo Yasunori|Takamura Naoto

3 records

Spirit

Active

Streptocarpus x hybridus Voss · Cape primrose

Fleischle Gartenbau GbR

3 records

Tana

Terminated

Cordyline Comm. ex Juss. · Palm lily

Evan David Lloyd

4 records

Aglaonema Schott. · Chinese Evergreen

LAMB ANN E.^^^BUTTON RICHARD J.

3 records

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

NIELS ARTS

3 records

x Mangave D. Klein · Mangave

Hansen Hans A

3 records

x Petchoa J. M. H. Shaw · Petchoa

TSUKAHARA JUN

3 records

Impatiens New Guinea Group · New Guinea Impatiens

SATO CHIHIRO|MINEMURA SHINJI

3 records

Spitfire

Active

Brassica napus var. napus · Rapeseed

FORAGE INNOVATIONS LTD

4 records

Rosatch

Active

Triticum aestivum L. · Bread wheat

Dario Fossati

5 records

Lactuca sativa L. · Lettuce

Central Valley Seeds Inc.

3 records

So-40

Active

Camelina sativa (L.) Crantz · Camelina

Sustainable Oils Inc.

3 records

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