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.

Dask

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

4 records

Cocktail clementine

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Darius

Active

Asparagus officinalis L. · Asparagus

PLANTAS DE NAVARRA, S.A.

2 records

Coronation

Active

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

TAKII EUROPE B V

3 records

Cornel 209

Active

Capsicum annuum L. · Bell pepper

INSTITUTUL DE CERCETARE-DEZVOLTARE PENTRU LEGUMICULTURA SI FLORICULTURA VIDRA

3 records

Clarosa

Active

Solanum lycopersicum L. · Tomato

HM.Clause S.A.S.

3 records

Citadel

Active

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

SAKATA SEED AMERICA INC US

2 records

Cimano

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

4 records

Curtis

Terminated

Lactuca sativa L. · Lettuce

Gautier Semences SAS (FR)

2 records

Chipsy

Active

Solanum tuberosum L. · Potato

Grocep S.I.C.A.

3 records

Colette

Active

Cucurbita pepo L. · Field pumpkin

Enza Zaden Beheer B.V.

4 records

Charlotte

Active

Beta vulgaris Leaf Beet Group · Swiss chard

INCONNU (FR)

2 records

Coco nain rose d'Eyragues

Active

Phaseolus vulgaris L. · Common bean

Domaine Public (FR)

2 records

Crimson delight

Terminated

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

Graines Voltz (FR)/Hollar Seeds (US)

2 records

Cezar

Active

Cucumis sativus L. · Cucumber

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.

3 records

Celin

Terminated

Capsicum annuum L. · Bell pepper

Syngenta Seeds B.V.

2 records

Ceglédi bájos

Active

Prunus armeniaca L. · Apricot

Ildikó File^^^Zoltán Erdős

2 records

Castellano

Active

Cucumis melo L. · Melon

SEMILLAS FITO, S.A.

2 records

CBA 500

Active

Capsicum annuum L. · Bell pepper

Paulina Bartkowska Gospodarstwo Hodowlano - Nasienne Bartkowscy

2 records

Casimiro

Terminated

Solanum lycopersicum L. · Tomato

Kamil Bartkowski Gospodarstwo Hodowlano-Nasienne Bartkowscy

2 records

Cartoon

Active

Lactuca sativa L. · Lettuce

Vilmorin-Mikado SAS (FR)

3 records

Cardenal

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

2 records

Coati

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE N.V./S.A.

2 records

Caprese

Active

Solanum lycopersicum L. · Tomato

De Ruiter Seeds B.V.

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.