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

Maize tolerance 721 Sunflower tolerance 633 Maize tolerance 361 Tolerance — Sugar Beet 354 Tolerance — soft wheat 336 Tolerance in Lettuce 236 Tomato Tolerance 234 Cucumber tolerance 204 Rapeseed tolerance 168 Tolerance in White Cabbage 140 Pepper Tolerance 122 Barley tolerance 119 Tolerance — Soybean 117 Bean tolerance 81 Rapeseed tolerance 74 Potato tolerance 71 Rose tolerance 64 Zucchini Tolerance 61 Melon tolerance 61 Plum tolerance 58 Grapevine Tolerance 56 Peach tolerance 55 Pea tolerance 55 Triticale Tolerance 54

Found in these crops

Maize 718 Sunflower 670 Sugar beet 368 Bread wheat 342 Tomato 336 Maize 322 Cucumber 309 Lettuce 301 Rapeseed 190 Bell pepper 189 White cabbage 180 Perennial ryegrass 139

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.

Felinem

Active

Prunus amygdalus x Prunus persica

INIA-DIP.ARAGON

5 records

Feast II

Active

Lolium multiflorum Lam. · Italian ryegrass

PGG Wrightson Seeds

4 records

FDL Consecvent

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEMUSTATEA POMPILIUITTU MARIANAMARINCIU CRISTINA MIHAELASERBAN GABRIELAMANDEA VASILECIUCA MATILDA

4 records

Fortezza

Active

Glycine max (L.) Merr. · Soybean

INSTITUTE OF FIELD AND VEGETABLE CROPS

4 records

Euromaster

Terminated

Festuca rubra L. · Red fescue

Euro Grass Breeding GmbH Co. KG

5 records

FD15E27

Active

Helianthus annuus L. · Sunflower

PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA

4 records

Faraday

Active

Phaseolus vulgaris L. · Common bean

Holland-Select Research B.V.

4 records

FOLHA MURCHA

Active

Citrus sinensis (L.) Osbeck · Sweet orange

3 records

Fisupnic Hotpink

Terminated

Impatiens New Guinea Group · New Guinea Impatiens

Syngenta Crop Protection AG

3 records

Endurance

Active

Poa pratensis L. · Kentucky bluegrass

PURE SEED TESTING

3 records

Estocolmo

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Sakata Vegetables Europe SAS (FR)

3 records

Estrella

Active

Poa pratensis L. · Kentucky bluegrass

DLF USA, Inc. and Rutgers, The State University of New Jersey

3 records

ES ARCADIA SU

Active

Helianthus annuus L. · Sunflower

Didier Sauvaire

5 records

Escazu

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

SYNGENTA SEEDS B.V , NL

3 records

Eskimo

Active

Capsicum annuum L. · Bell pepper

Wing Seed

4 records

Escalade

Active

Spinacia oleracea L. · Spinach

Enza Zaden Beheer B.V.

5 records

Enjoy

Active

Avena sativa L. · Oat

Landwirtschaftliche Fachschule Edelhof Saatzucht

5 records

Emocion

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

5 records

Famosa

Active

Gossypium hirsutum L. · Upland cotton

GOLDEN WEST SEED RESEARCH Co.

4 records

Fallgreen

Active

Lactuca sativa L. · Lettuce

Harris Moran Seed Company

3 records

El Kuduro

Active

Spinacia oleracea L. · Spinach

Syngenta Crop Protection AG

6 records

Fajah

Active

Solanum tuberosum L. · Potato

Renze Klaas Rispens

5 records

Fagot

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

3 records

Emilie

Active

Cucumis sativus L. · Cucumber

SEMO a.s

3 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.