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.

Kameos

Terminated

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

KWS Saat AG, DE

3 records

Infinity

Active

Solanum lycopersicum L. · Tomato

HAZERA GENETICS

2 records

Jabadu

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.

2 records

Irmina

Terminated

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

3 records

Kaizen

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

2 records

Kanayama

Active

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

Ikasido Global Group B.V

2 records

Impero

Active

Cucumis melo L. · Melon

Monsanto Vegetable IP Management B.V.

4 records

Ipace

Active

Beta vulgaris Leaf Beet Group · Swiss chard

KWS VEGETABLES B.V.

2 records

Kalorez

Active

Capsicum annuum L. · Bell pepper

MÁRKUS FERENC^^^KAPITÁNY JÓZSEF^^^Gábor Csilléry^^^János Szarka^^^PÉK MIKLÓS

4 records

Jutrosz

Active

Solanum lycopersicum L. · Tomato

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

2 records

Kalipso

Active

Prunus domestica L. · European plum

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

4 records

Kajak

Terminated

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

Sakata Seed Corporation, JP

2 records

Joran

Active

Cucumis sativus L. · Cucumber

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

3 records

Invictus

Active

Cucumis sativus L. · Cucumber

Monsanto Vegetable IP Management B.V.

4 records

Invernalia

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

4 records

Hurt

Terminated

Triticum aestivum L. · Bread wheat

Bosakovska Nataliia IUriivna, Bredins`ka Nadiia Stepanivna, Babaiants Lazar Tihranovych, Nakonechnyi Mykola IUriiovych, Narhan Tetiana Pavlivna, Fedchenko Volodymyr Pavlovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,

4 records

Johanna

Active

Raphanus sativus L. var. sativus · Radish

AGROSEL S.R.L.

3 records

Icemoon

Withdrawn

Lactuca sativa L. · Lettuce

Vilmorin-Mikado SAS (FR)

2 records

Jasper

Active

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

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

3 records

Jawor

Active

Beta vulgaris Garden Beet Group · Garden beet

Hodowla Roslin Snowidza Sp.z.o.o

5 records

Jasper II

Active

Festuca rubra L. · Red fescue

Hachney Jay

3 records

Ibis

Active

Cucumis sativus L. · Cucumber

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

2 records

HYPMAD II

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Information regarding the breeder received in the contribution to CPVO :Dirr M. A.

2 records

Itaipu

Terminated

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

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.