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.

BTS 1745

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed

2 records

Djuro

Active

Solanum lycopersicum L. · Tomato

TOMATECH R&D ISRAEL L.T.D.

2 records

Barquesa

Active

Juglans regia L. · Persian walnut

FRANÇOIS RAOUL VEZ

3 records

Coleman

Active

Cucurbita pepo L. · Field pumpkin

INTERSEMILLAS SAU

2 records

Gioia

Active

Solanum melongena L. · Eggplant

S.A.I.S. Societa Agricola Italiana Sementi

2 records

GH4927

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

2 records

Casanix

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

4 records

Ferro

Application submitted

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

8 records

FD Java Smart

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Florimond Desprez

2 records

BTS Smart 9145 N

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed

2 records

Faoh

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Organisation Bretonne de Selection-OBS (FR)

2 records

Fabienna

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

2 records

Benigara

Active

Solanum lycopersicum L. · Tomato

Shevchenko Igor

3 records

Dushi

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVanderhave NV

2 records

Escala

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

DKC3434

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

2 records

Arribes

Active

Beta vulgaris Sugar Beet Group · Sugar beet

MariboHilleshog ApS

3 records

Amers

Active

Prunus domestica L. · European plum

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Agrikolo

Active

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

3 records

SCHROLLA03

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Schroll Management ApS

2 records

Dakota

Active

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

Syngenta Crop Protection AG

3 records

Calao Smart

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE N.V./S.A.

2 records

Baragan

Active

Allium cepa L. var. cepa · Onion

Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV

2 records

BC405

Active

Zea mays L. subsp. mays (Maize Group) · Maize

Bc Institut d.d. Zagreb (HR)

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.