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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

Found in these crops

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.

Severo

Active

Triticum durum Desf. · Durum wheat

ETS CLAUDE CAMILLE BENOIST

IT
3 records

Shamrock

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Mallet, Corinne

FR
3 records

Scudo

Active

Oryza sativa L. · Rice

S.I.S. SOCIETA' ITALIANA SEMENTI

IT
4 records

Sendanas

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Segobia

Active

Lactuca sativa L. · Lettuce

Nunhems B.V.

NL
5 records

Skipper

Active

Phaseolus vulgaris L. · Common bean

Vilmorin-Mikado S.A.S.

FR
4 records

Festuca rubra L. · Red fescue

PURE SEED TESTING

IT
4 records

Saurus

Protection expired

Phaseolus vulgaris L. · Common bean

Nunhems B.V.

NL
4 records

Sansoucy

Active

Phaseolus vulgaris L. · Common bean

HM.CLAUSE

FR
4 records

Cucurbita pepo L. · Field pumpkin

Syngenta Crop Protection AG

NL
5 records

Festuca rubra L. · Red fescue

TURF-SEED INC

IT
4 records

Saturn

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Rampp

FR
3 records

Sersil

Active

Onobrychis viciifolia Scop. · Common sainfoin

SILISTRU DOINAVLAD VASILEICHIM EMIL

RO
4 records

Salama

Active

Triticum aestivum L. · Bread wheat

FLORIMOND DESPREZ VEUVE ET FILS

ES
4 records

Sagane

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Feldsaaten Freudenberger GmbH&Co.KG

PT
3 records

Salvio

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
5 records

Sapfo

Protection expired

Triticum durum Desf. · Durum wheat

HAO-DEMETER - Cereal Institute

GR
4 records

Saltan

Active

Cucumis sativus L. · Cucumber

Selekcijos ir sėklininkystės firma ,,Manul"

LT
3 records

Roxanna

Application submitted

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Safari

Active

Cucurbita pepo L. · Field pumpkin

TOZER SEEDS LTD

NL
3 records

Ruglatt

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Agri-Obtentions S.A.

DE
4 records

Ruddy

Active

Festuca rubra L. · Red fescue

Dr. Donald J. Floyd c/o Pickseed West, Inc.

DE
4 records

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

Rushmore

Active

Festuca rubra L. · Red fescue

DLF INTERNATIONAL SEEDS

RO
5 records

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