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.

Rosie

Active

Prunus avium (L.) L. · Sweet cherry

Zaiger's Inc. Genetics (US)

5 records

Risabell

Protection expired

Oryza sativa L. · Rice

Simonne dr. Kiss Ibolya / Pauk Janos / Bobvos Janosne / Budai Sandorne

4 records

Rhambler SRP

Active

Festuca arundinacea Schreb. · Tall fescue

RUTGERS UNIVERSITY OF NEW JERSEY

4 records

Rubicus

Active

Festuca rubra L. · Red fescue

Mountain View Seeds

3 records

Rubaszek

Active

Hordeum vulgare L. · Barley

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

4 records

RGT Centsac

Active

x Triticosecale Wittm. ex A. Camus · Triticale

RAGT 2N S.A.S

4 records

Rhambler

Active

Festuca arundinacea Schreb. · Tall fescue

Rutgers, The State University of New Jersey

3 records

Rositca

Terminated

Arachis hypogaea L. · Peanut

Stanko Delikostadinov

4 records

Roble

Active

Capsicum annuum L. · Bell pepper

SEMILLAS FITO, S.A.

3 records

Robertina

Active

Capsicum annuum L. · Bell pepper

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

4 records

Riposta

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

5 records

Red Peak

Active

Festuca rubra L. · Red fescue

PURE SEED TESTING

3 records

Regalnat

Active

Malus domestica (Suckow) Borkh. · Apple

MAILLARD Laurence / MAILLARD Arsene

4 records

RODNIChOK

Active

Cucumis sativus L. · Cucumber

PRIDNESTROVSKIJ NIISX

3 records

Record

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Walther Faedi^^^Gianluca Baruzzi^^^Pierluigi Lucchi

5 records

RGT Koesio

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

4 records

Red Hawk

Active

Phaseolus vulgaris L. · Common bean

Michigan State University

3 records

Rebel Advance

Active

Festuca arundinacea Schreb. · Tall fescue

Pennington Seeds Inc. (US)

4 records

Revenge 2GLX

Active

Lolium perenne L. · Perennial ryegrass

Barenbrug USA

3 records

Ramada

Active

Asparagus officinalis L. · Asparagus

Hans Rolf Späth

5 records

Raffaelo

Active

Asparagus officinalis L. · Asparagus

Südwestdeutsche Saatzucht GmbH&Co.KG

4 records

RGT Palmeo

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

5 records

RGT Luxeo

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

4 records

Red Imperator

Active

Capsicum annuum L. · Bell pepper

UNITED GENETICS SEEDS CO

3 records

1 2 ... 139 140 141 142 143 144 145 ... 332 333 Next

Jump to page 42 48 95 132 152 190 238 242 285

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

All terms →

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.