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.

Bp 1522

Active

Rubus idaeus L. · Red raspberry

Ioriatti Diego

8 records

Wodjil

Active

Lupinus luteus L. · Yellow lupin

WESTERN AUSTRALIAN DEPARTMENT OF

7 records

VIKINGA

Active

Chenopodium quinoa Willd. · Quinoa

UNIV. DE COPENHAGEN

5 records

Victor Baer

Active

Lupinus albus L. · White lupin

Campex Baer Ltda.

8 records

Ultron

Active

Capsicum annuum L. · Bell pepper

HM.Clause S.A.S.

7 records

Verdagio

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

8 records

Triumph

Active

Brassica napus L. var. napobrassica (L.) Rchb. · Rutabaga

PGG Wrightson Seeds

6 records

Toro

Active

Lotus corniculatus L. · Bird's-foot trefoil

Semillas Biscayart S.A.

9 records

Taray

Active

Cucumis sativus L. · Cucumber

Nunhems, B.V.

7 records

SY Passion

Active

Triticum aestivum L. · Bread wheat

Syngenta Participations,CH

6 records

SV1846VC

Active

Spinacia oleracea L. · Spinach

VEGETABLE MONSANTO B.V.

6 records

Sweet Benito

Active

Spathiphyllum Schott · Spathiphyllum

P.C.M. Olsthoorn Holding B.V.

5 records

Sugar Prince

Active

Pisum sativum L. · Pea

Syngenta Seeds B.V.

9 records

Sqisito

Active

Cucumis sativus L. · Cucumber

ROBERT SWINKELS

7 records

Sugar Sprint

Active

Pisum sativum L. · Pea

Syngenta Seeds B.V.

7 records

Snowden

Active

Solanum tuberosum L. · Potato

Stanley J. Peloquin

8 records

Silver Sun

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

5 records

Seychelles

Active

Phaseolus vulgaris L. · Common bean

Gebroeders Bakker Zaadteelt en Zaadhandel B.V.

6 records

Silver Sport

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

5 records

Sherin

Application submitted

Lactuca sativa L. · Lettuce

Nunhems Netherlands B.V.

7 records

Salinas

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

6 records

Sabre

Active

Poa trivialis L. · Rough bluegrass

INTERNATIONAL SEEDS INC

6 records

Riparia

Active

Festuca rubra L. · Red fescue

DLF SEEDS A/S

7 records

Rebel XLR

Active

Festuca arundinacea Schreb. · Tall fescue

Pennington Seeds Inc. (US)

6 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.