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.

LG Antigua

Active

Brassica napus L. · Rapeseed

Reinhard Hemker

AT BG HU LT RO SK +1

10 records

Umberto KWS

Active

Brassica napus L. · Rapeseed

KWS SAAT SE & CO.KGAA

AT BG HU LT LV RO +1

8 records

Trezzor

Active

Brassica napus var. napus · Rapeseed

Ragt, F

CZ DK FR PL

10 records

Sherpa

Active

Brassica napus L. · Rapeseed

Norddeutsche Pflanzenzucht Hans Georg Lembke KG,DE

AT BG EE HU LT LV +2

9 records

Ramona

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BG DE ES FR GR HR +1

8 records

Amazzonite

Active

Brassica napus var. napus · Rapeseed

RAGT 2n, FR

CZ DE DK FR UA

12 records

LG Optimist

Active

Triticum aestivum L. · Bread wheat

LIMAGRAIN EUROPE

BE EE NL PL SK UA

12 records

Sandpiper Smart

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE, N.V./S.A.

DK ES IT LT NL SE +1

8 records

Smart Justina KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE CZ DE DK FR NL +1

8 records

Laetitia

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

BE ES FR HR HU NL +1

9 records

LG31380

Active

Zea mays L. · Maize

Limagrain Europe, F

AT BG IT RO SK UA

13 records

Dorena

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

CZ DE FR LT NL PL

9 records

Justina

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS| KWS SAAT AG

BE DE DK FR LT UA

8 records

SY Talisman

Active

Zea mays L. · Maize

Syngenta UK Ltd

AT DE SK UA

9 records

SY Iowa

Active

Brassica napus var. napus · Rapeseed

Syngenta Participations AG

DE DK PL UA

11 records

Successor

Active

Glycine max (L.) Merr. · Soybean

Patrice Jeanson

AT CZ DE RO SK UA

11 records

Rubinola

Active

Malus domestica (Suckow) Borkh. · Apple

Ústav experimentální botaniky AV ČR, v.v.i. (CZ)

CZ DE HU NL PL SK

18 records

Pancho

Active

Allium porrum L. · Leek

Nickerson Zwaan B.V. (NL)

CZ HR HU NL PL SK

8 records

Ridu

Active

Festuca trachyphylla (Hack.) Hack. · Hard fescue

DLF Seeds A/S

CZ DK EE LT SE SK

10 records

PR37W05

Active

Zea mays L. · Maize

Todd Piper

AT HU IT SI SK UA

12 records

PR39H32

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

AT BE DE LT SI SK

11 records

Maxidor

Active

Phaseolus vulgaris L. · Common bean

VILMORIN, S.A.

CZ ES FR HU SK UA

10 records

Sabrina KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK FR NL SE

8 records

Magnus

Active

Solanum lycopersicum L. · Tomato

De Ruiter Seeds, NL

BG HR NL PL SK UA

8 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.