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.

Fatale

Active

Zea mays L. · Maize

Joel Meunier

2 records

Concorde

Protection expired

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

Coop de Pau SCA (FR)

ES FR

3 records

Dalary

Active

Zea mays L. · Maize

MAS SEEDS

2 records

Bc 5982

Active

Zea mays L. · Maize

Bc Institut, HR

3 records

Portbou YG

Active

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

MONSANTO TECHNOLOGY

2 records

Oxxygen

Terminated

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

R 2n (FR)

2 records

LG3520

Protection expired

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

Limagrain Genetics Grandes Cultures SA (FR)

2 records

MAS 245A

Active

Zea mays L. · Maize

MAS SEEDS

2 records

Harmonium

Active

Zea mays L. · Maize

Joel Roucolle

3 records

Coronata

Terminated

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

TAKII EUROPE B V

2 records

Fortop

Active

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

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

2 records

Acuna

Active

Triticum aestivum L. · Bread wheat

APSOVSEMENTI SRL

4 records

538P

Active

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

Monsanto Technology LLC, US

2 records

VN 6763

Active

Zea mays L. · Maize

Kudyna Ol`ha IUriivna, Lubko Maryna Vasylivna, Parii IAroslav Fedorovych, Rusavskyi Vladyslav Leonidovych, Iliuchenko Oleksandr Serhiiovych, Parii Myroslav Fedorovych, Parii IUliia Oleksandrivna, Parii Fedir Mykytovych,

3 records

Visialong Pv

Active

Oryza sativa L. · Rice

INSTITUTO HISPANICO DEL ARROZ, S.A. (HISPARROZ)

3 records

Tigrus

Active

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Innovative Seed Solutions LLC (US)

2 records

SM Zerka

Active

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

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

2 records

SM Redstar

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

3 records

Siwek

Terminated

Avena sativa L. · Oat

Malopolska Hodowla Roslin Spolka z o.o.

2 records

Serzhan

Active

Helianthus annuus L. · Sunflower

Synysha Iotsych, Drahan Shkorych,

2 records

Saba

Terminated

Phaseolus vulgaris L. · Common bean

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

4 records

Ricardo

Terminated

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

3 records

RAM 8153

Active

Zea mays L. · Maize

Rysin Leonid Mykhailovych

3 records

PR34B39

Active

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

Pioneer Hi-Bred International Inc (US)

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.