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.

Gulle

Terminated

Brassica napus L. · Rapeseed

Andersson, Gösta

1 record

Exxact

Withdrawn

Zea mays L. · Maize

RAGT CZECH| RAGT Czech s.r.o.

1 record

DMS Koryfey

Application submitted

Zea mays L. · Maize

SPFE Company MAIS

1 record

DKC5350

Withdrawn

Zea mays L. · Maize

MONSANTO TECHNOLOGY

1 record

1089D485-01

Active

Zea mays L. · Maize

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

1 record

Yamori

Active

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage

Shcevchenko Igor

2 records

TRIUNCIAL

Active

Triticum aestivum L. · Bread wheat

VARIOS OBTENTORES

2 records

Tacoma F1

Active

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

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 records

TASAPAINO

Application submitted

hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner

Vilmorin-Mikado

1 record

UGI 1719-16

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

UNITED GENETICS ITALIA S.P.A

1 record

Vili

Application submitted

Hordeum vulgare L. · Barley

Poljoprivredni Institut Osijek, HR

1 record

SY 516090

Application submitted

Triticum durum Desf. · Durum wheat

Syngenta participation AG

1 record

Sweetstar F1

Terminated

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

Steve Grin

1 record

Pivdennyi

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Yarosh Andrii Vasylovych, Syvokin` Inna Valentynivna, Sviatchenko Serhii Ivanovych, Bosiuk Olena Oleksandrivna, Chernobab Raisa Andriivna, Shcypak Hennadii Vasylovych,

2 records

PR39P83

Withdrawn

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

Pioneer Hi-Bred International Inc (US)

1 record

Puncheur

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SAS FLORIMOND-DESPREZ Veuve et Fils

1 record

Sheba F1

Terminated

Allium cepa L. · Onion

Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,

1 record

Moris

Terminated

Solanum melongena L. · Eggplant

Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,

1 record

LID Bardenas

Active

Sorghum bicolor (L.) Moench · Sorghum

Eurosorgho, Lescar FR

1 record

NEMA-1401

Terminated

Solanum lycopersicum L. · Tomato

PETOSEED CO

1 record

Pink Kler F1

Active

Solanum lycopersicum L. · Tomato

Moshe Zalsman

2 records

Kober 125 AA

Active

Vitis L. · Grapevine

INCONNU (FR)

1 record

Pam'iat` Chupikova

Terminated

Zea mays L. · Maize

Sikalova Olena Valentynivna, Ovsiannikova Nataliia Stanislavivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonyd Vasyl`ovych,

2 records

Opalor

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

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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.