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.

Sisi

Active

Tilia tomentosa Moench · Hungarian silver linden

Elemér Barabits

2 records

Arbiter

Active

Beta vulgaris Sugar Beet Group · Sugar beet

DLF Beet Seed APS

2 records

Robinho

Active

Tulipa L. · Tulip

Hybris B.V.

2 records

Albelo

Active

Populus L. · Poplar

Stichting Wageningen Research

2 records

Zondra

Terminated

Cucumis melo L. · Melon

De Ruiter Zonen (HR)

3 records

Zygmunt

Active

Beta vulgaris Sugar Beet Group · Sugar beet

WIELKOPOLSKA HODOWLA BURAKA CUKROWEGO SP.Z.O.O

2 records

Zuhat

Active

Helianthus annuus L. · Sunflower

JOSE RAMON PEREZ MONREAL

3 records

Zawrat

Terminated

Allium sativum L. · Garlic

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

2 records

Zapata

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Strube, D

2 records

Zevs

Active

Helianthus annuus L. · Sunflower

Synysha Iotsych, Drahan Shkorych,

3 records

Złoto Wolicy

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

5 records

Zadurella

Active

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

2 records

ZP 260

Active

Zea mays L. · Maize

4 records

Yevro

Active

Helianthus annuus L. · Sunflower

Luk'ianchyk IUrii Ivanovych, Karpenko Oleksandr Oleksandrovych, Parii IUliia Oleksandrivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,

3 records

Zlata

Active

Cucumis melo L. · Melon

SMOLINOVA NADEZhDA VIKTOROVNA / SOKOLOV ARTEM SERGEEVICh / SOKOLOV SERGEJ DMITRIEVICh / HUTORNAYa ELENA VLADIMIROVNA / ShANTASOV ARTUR MARATOVICh

3 records

XM 4418

Active

Zea mays L. · Maize

Maize Research Institute - Kneja (BG)

2 records

Xoana

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

4 records

Zadok

Terminated

Cucurbita maxima Duchesne x Cucurbita moschata Duchesne

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

4 records

XP 03745864

Terminated

Cucumis melo L. · Melon

Seminis Vegetable Seeds

4 records

Yunque

Active

Capsicum annuum L. · Bell pepper

Hort Seed Mediterrani SL SPAIN

2 records

Yarimaru

Active

Solanum lycopersicum L. · Tomato

Monsanto Vegetable IP Management B.V.

4 records

Zagłoba

Active

Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac

Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Wojownik

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE N.V./S.A.

2 records

Yamada

Active

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

Shcevchenko Igor

3 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.