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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 3020

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed

DE
2 records

8 B

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
2 records

CW 9701

Active

Trifolium repens L. · White clover

CAL-WEST SEEDS

IT
2 records

Ucb 1

Active

Pistacia atlantica x Pistacia integerrima

Innea Alternativas Biotecnológicas S.L.

2 records

Forner Alcaide V 17

Active

Citrus hybr.

Instituto Valenciano de Investigaciones Agrarias (IVIA)

2 records

KLEPH 07144

Terminated

Petunia Juss. · Petunia

Nils Klemm

2 records

FL07-399

Active

Vaccinium L. · Bilberry

Paul M. Lyrene James W. Olmstead

3 records

G 814

Active

Malus domestica x Malus robusta · Apple

Herbert Aldwinckle^^^Gennaro Fazio^^^James Cummins^^^Terence L. Robinson

3 records

G.257

Active

Malus domestica x Malus robusta · Apple

Gennaro Fazio^^^James Cummins^^^Herbert Aldwinckle^^^Terence L. Robinson

2 records

DKC 2790

Terminated

Zea mays L. · Maize

MONSANTO TECHNOLOGY

DE UA
2 records

MAS 515WX

Active

Zea mays L. · Maize

PIONEER HI-BRED INT. INC, PIONEER OVERSEAS CORPORATION,

IT
2 records

LG33.50

Active

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

Limagrain Verneuil Holding (FR)

HR
2 records

LG 56.65

Active

Helianthus annuus L. · Sunflower

Limagrain Europe, Saint Beauzire (FR)

HR
2 records

Bc 512

Terminated

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

Bc Institut d.d. Zagreb (HR)

HR
3 records

C-310

Active

Gossypium hirsutum L. · Upland cotton

COKER PEDIGREED SEED CO.

ES
3 records

Bc 406

Terminated

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

Bc Institut d.d. Zagreb (HR)

HR
3 records

AS 33-109

Active

Helianthus annuus L. · Sunflower

Frederic Poujeaud

UA
2 records

AS-87

Active

Helianthus annuus L. · Sunflower

Jocie Sinisa

UA
5 records

Blits 160 MV

Active

Zea mays L. · Maize

Borysov Viktor Mykolaiovych, Kostiuchenko Viktor Ivanovych

UA
3 records

Aviso

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

CZ FR HR PL SK
8 records

Gorella

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

ES FR HU NL RO SI
12 records

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