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.

Arunasun IR

Active

Helianthus annuus L. · Sunflower

Elena Andreea Teodorescu

AT HU RO SK UA

9 records

Belle

Active

Solanum lycopersicum L. · Tomato

Zaden, NL

BG HR NL SI UA

8 records

SY Kupava

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

FR HR SK UA

10 records

Tristan

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection AG, CH

BG ES SK UA

9 records

SW Hebe

Active

Trifolium repens L. · White clover

Svalof Weibull AB

AT FI FR SE

12 records

Rally

Active

Solanum lycopersicum L. · Tomato

Enza Zaden, NL

BG HR NL UA

9 records

Solindo CS

Active

Triticum aestivum L. · Bread wheat

Frantz Boudet

FR HR IT UA

12 records

Simply Red

Active

Solanum tuberosum L. · Potato

Van Rijn B.V.

HR NL PL UA

12 records

P9175

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT BG HU UA

14 records

P64le11

Active

Helianthus annuus L. · Sunflower

Pioneer Overseas Cor, USA

HR HU RO UA

12 records

Narcos

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SAS FLORIMOND-DESPREZ Veuve et Fils

CZ FR PL UA

9 records

Marbelia CL

Active

Helianthus annuus L. · Sunflower

Rene Baraten

IT RO SK UA

11 records

Monaco

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

Syngenta Seeds B.V. (NL)

FR HR NL PL

9 records

LG Armstrong

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG FR HU RO

12 records

Lisabelle

Active

Lolium perenne L. · Perennial ryegrass

Euro Grass Breeding GmbH Co. KG

DE DK FR PL

14 records

KWS Joyau

Active

Hordeum vulgare L. · Barley

KWS Momont, F

FR IE IT LU

12 records

KWS Granos

Active

Brassica napus var. napus · Rapeseed

KWS, D

CZ FR PL UA

14 records

Gallec

Active

Glycine max (L.) Merr. · Soybean

Delley Samen und Pflanzen AG (CH)

AT CZ HR UA

10 records

ES Florimis

Active

Helianthus annuus L. · Sunflower

Mr. Zhan-Liuk Madeuf

BG FR IT UA

10 records

Greenmile

Active

Festuca rubra L. · Red fescue

Top Green (FR)

DE DK FR UA

12 records

ES Monalisa

Active

Helianthus annuus L. · Sunflower

LIDEA FRANCE SAS

AT CZ FR UA

9 records

ES Capello

Active

Brassica napus var. napus · Rapeseed

LIDEA FRANCE SAS

CZ FR PL UA

11 records

Barezane

Terminated

Lolium perenne L. · Perennial ryegrass

Barenbrug Holland BV, 6501 BH Nijmegen

DE NL PL SK

10 records

Aurelia

Active

Brassica napus var. napus · Rapeseed

Limagrain Europe, F

CZ DK IE PL

14 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.