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.

Greenfield Com

Active

Festuca rubra L. · Red fescue

PROSEEDS MARKETING

5 records

Grandarosa

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy (The National Institute of Horticultural Research)

7 records

Griffon

Active

Helianthus annuus L. · Sunflower

CST(CLUB SELECT.TOURNESOL

4 records

Greenlady

Terminated

Festuca arundinacea Schreb. · Tall fescue

Top Green (FR)

3 records

Greenfield

Terminated

Lactuca sativa L. · Lettuce

Harris Moran Seed Company

3 records

Hillwood

Active

Cucumis sativus L. · Cucumber

FRANK FRANCIS

3 records

Highlander

Active

Cynodon dactylon (L.) Pers. · Bermuda grass

PURE SEED TESTING

4 records

Goldkist

Protection expired

Phaseolus vulgaris L. · Common bean

NOVARTIS SEEDS

3 records

Green field

Active

Capsicum annuum L. · Bell pepper

Superior, Velika Plana

3 records

Granite

Active

Festuca ovina L. · Sheep's fescue

Oregro Seeds

4 records

Herbert

Active

Festuca rubra L. · Red fescue

Ants Bender 80%, Sirje Tamm 20%

4 records

GLORIA

Active

Brassica oleracea L. (Cabbage Group) · Cabbage

Daehnfeldt Hayetr O A/S (DK)

3 records

Glaz

Active

Triticum aestivum L. · Bread wheat

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

4 records

Gustafano

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

4 records

Giorgione

Active

Oryza sativa L. · Rice

Sardo Piemontese Sementi Soc. Coop. Società Agricola

4 records

Guidizel

Active

Lactuca sativa L. · Lettuce

BEJO ZADEN

6 records

Gregorio

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

5 records

GK Zete

Active

Triticum aestivum L. · Bread wheat

Gabonakutató Nonprofit Közhasznú Kft, Szeged

4 records

Giovanna

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

3 records

GK Fehér

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

Gabonakutató Nonprofit Közhasznú Kft, Szeged

4 records

Graveline

Active

Triticum aestivum L. · Bread wheat

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

4 records

Giono

Active

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE UK LTD

3 records

Gea

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

Sakata Seed Corporation (SCC)

4 records

Gold Medal

Active

Cucurbita pepo L. · Field pumpkin

RUPP SEEDS INC

4 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.