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.

Plaisant

Protection expired

Hordeum vulgare L. · Barley

Groupement Agricole Essonnois (FR)

ES FR GR HU IT SI

16 records

LG Apilco

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, FR

BG FR HU RO SK

16 records

Cecile

Active

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

Bejo Zaden B.V.

CZ HU NL PL SI SK

12 records

Ambassador

Active

Brassica napus var. napus · Rapeseed

Limagrain Europe, F

CZ DE DK FR IE PL

19 records

Alexandra PR

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

AT CZ FR HR HU SK

11 records

Sumiko

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

AT HU IT RO UA

14 records

NK Kondi

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

BG FR HR HU UA

15 records

SY Edenis

Active

Helianthus annuus L. · Sunflower

Syngenta Crop Protection,CH

AT HR HU SK UA

12 records

Ridu

Active

Festuca ovina L. · Sheep's fescue

DLF-Trifolium (DK)

HR HU PL RO SI

13 records

Basilio

Active

Triticum aestivum L. · Bread wheat

SAS FLORIMOND-DESPREZ Veuve et Fils

ES HR HU UA

19 records

Arrow

Active

Solanum tuberosum L. · Potato

MARIEN WINTERS_ / J. J. H. M. ALLEFS_ / J. J. VAN HOOGEN_

HR NL SI UA

13 records

Gaviota

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF CALIFORNIA WOLFSKILL EXPERIMENTAL ORCHARD

NL PL RO

15 records

Electra

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE MT UA

15 records

Premium

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Paul Degreef

NL UA

14 records

Zalsamon

Active

Alstroemeria L. · Alstroemeria

van Zanten Plants b.v

10 records

Lagorai Plus

Active

Rubus idaeus L. · Red raspberry

Telch Aldo

14 records

Maluma

Active

Persea americana Mill. · Avocado

Mr AG Joubert,

10 records

ES Petunia

Active

Helianthus annuus L. · Sunflower

Thierry Andre

CZ DE FR HR HU IT +1

14 records

Rimisol

Active

Helianthus annuus L. · Sunflower

INST.FIELD VEGETABLE CROP

BG ES RO SK UA

15 records

Anapurna

Active

Triticum aestivum L. · Bread wheat

Nickerson International Research SNC, F

BG FR HU IT RO

16 records

Fushia CL

Active

Helianthus annuus L. · Sunflower

LIDEA FRANCE SAS

BG RO SK UA

13 records

RGT Wollf

Active

Helianthus annuus L. · Sunflower

Ragt 2n, F

AT IT UA

12 records

Temptation

Active

Brassica napus var. napus · Rapeseed

STELLING DIETER

CZ DE FR PL

13 records

ES Andromeda

Active

Helianthus annuus L. · Sunflower

Euralis Semences

BG ES RO UA

12 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.