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.

DCOREO16

Active

Coreopsis grandiflora Hogg ex Sweet · Large-flowered tickseed

Gavriel Danziger

2 records

DBIDMECHAR

Active

Bidens ferulifolia (Jacq.) DC. · Apache beggartick

Gavriel Danziger

3 records

Crimson Tempo

Protection expired

Dianthus L. · Carnation

P.Kooij & Zonen B.V.

2 records

Domino

Active

Prunus armeniaca L. · Apricot

PSB Producción Vegetal S.L

3 records

DLFSHAD3

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

2 records

DLFMARA1

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

2 records

Diva

Active

Populus x canadensis Moench · Carolina poplar

CREA-FL

2 records

Extrema

Active

Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket

Andrea Maraldi

2 records

ERFZ0006

Active

Erysimum linifolium (Pers.) J. Gay · Wallflower

Syngenta Participations AG

2 records

Eurostripe

Active

Cordyline australis (G. Forst.) Endl. · Cabbage tree

P.C.M. Olsthoorn Holding B.V.

2 records

Dehesa De La Villa

Active

Ulmus minor Mill. · Field elm

Dirección General de Desarrollo Rural y Política Forestal, Unidad de Anatomía Fisiología y Genética Forestal

2 records

Electric

Active

Heuchera L. · Coral Flower

Janet N. Egger

2 records

Danielle

Active

Kalanchoe Adans. · Kalanchoe

Knud Jepsen

2 records

DLFEVID1

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

3 records

DLFMEXI4

Active

Chrysanthemum L. · Chrysanthemum

Arie Gerard Post

2 records

Colossus

Active

Vaccinium corymbosum L. · Highbush blueberry

Paul M. Lyrene James W. Olmstead

2 records

BRFU 121531

Active

Fuchsia L. · Fuchsia

Hubert Brandkamp

2 records

CIVL519

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Michelangelo Leis

2 records

Dohkko

Active

Solanum lycopersicum x Solanum pimpinellifolium · Tomato

Syngenta Crop Protection AG

2 records

Bloody Mary

Active

Hybrids between Nepenthes ampullaria and Nepenthes ventricosa

Borneo Exotics (Pvt) Ltd.

2 records

Dobegicpochamp

Active

Begonia boliviensis A. DC. · Bolivian begonia

Rijk Nadine

2 records

Dellinois

Active

Populus deltoides W. Bartram ex Marshall · Eastern cottonwood

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Institut National de Recherche en Sciences et Technologies pour l’Environnement et l’Agriculture (IRSTEA), Institut Technologique FCBA

2 records

Citronella

Active

Ilex verticillata (L.) A. Gray · Winterberry

Jan Johannes Stolk

2 records

Bombay

Terminated

Celosia L. · Cockscomb

Celex B.V.

2 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.