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Variety traits

Herbicide tolerance

Herbicide tolerance is the genetically determined ability of a crop variety to withstand the phytotoxic effects of chemical agents, allowing for the application of herbicides to growing crops without suppressing the crop.

Mentioned in descriptions 5 668 varieties reference book.

The herbicide tolerance of a variety is the genetically determined ability of a cultivated plant to withstand the phytotoxic effects of a specific chemical agent. In practice, this allows for the application of broad-spectrum herbicides directly to the growing crop without the risk of damage or loss of the stand, which significantly simplifies weed control.

This trait is evaluated within the framework of state variety testing using field and laboratory test methods. In field conditions, plots subjected to chemical treatment are compared with control samples, where plant density preservation, the absence of phytotoxicity signs (chlorosis, necrosis), and growth rates are recorded. Laboratory methods include dose-response analysis to determine survival rates at various application rates of the chemical.

Tolerance indicators are expressed in visual damage scores, percentage of stand density preservation, or productivity levels relative to an untreated standard. High tolerance is characterized by the preservation of full productivity when the recommended full dose of herbicide is applied. With low tolerance, even reduced doses cause growth retardation and yield loss; therefore, an important parameter for variety selection is its compatibility with the specific mode of action of the applied chemical.

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.

Helianthus annuus L. · Sunflower

Neno Nenov

UA
4 records

Hussar

Active

Helianthus annuus L. · Sunflower

Prograin Genetique (FR)

FR
3 records

Griffon

Active

Helianthus annuus L. · Sunflower

CST(CLUB SELECT.TOURNESOL

ES
4 records

Greta

Active

Oryza sativa L. · Rice

SECE SAS

IT
3 records

Hordeum vulgare L. · Barley

Dr. Karl-Josef Müller

DE
5 records

Grapeli

Terminated

Triticum aestivum L. · Bread wheat

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

FR
4 records

Fortal

Terminated

Helianthus annuus L. · Sunflower

APEX SARL

IT
3 records

FD21CL77

Active

Helianthus annuus L. · Sunflower

JOITA-PACUREANU MARIASTANCIU DANILSTANCIU MARIAANTON FLORIN GABRIEL

RO
4 records

FD22CL83

Active

Helianthus annuus L. · Sunflower

JOITA-PACUREANU MARIASTANCIU DANILSTANCIU MARIAANTON FLORIN GABRIEL

RO
4 records

FD15E27

Active

Helianthus annuus L. · Sunflower

PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA

RO
4 records

Faraon

Active

Helianthus annuus L. · Sunflower

GALVEZ SEMILLAS SL

PT
3 records

Festien

Active

Solanum tuberosum L. · Potato

Eiko Jan Feunekes

DE
5 records

Helianthus annuus L. · Sunflower

Didier Sauvaire

UA
5 records

Felice

Active

Oryza sativa L. · Rice

BILONI MASSIMO

IT
3 records

Helianthus annuus L. · Sunflower

JOITA-PACUREANU MARIASTANCIU DANILSTANCIU MARIAANTON FLORIN GABRIEL

RO
4 records

FD15CL44

Active

Helianthus annuus L. · Sunflower

PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA

RO
4 records

Emiliana

Active

Solanum tuberosum L. · Potato

Justus Böhm

DE
5 records

Helianthus annuus L. · Sunflower

Elena Andreea Teodorescu

UA
4 records

Egeo CL

Active

Oryza sativa L. · Rice

GENTINETTA EUGENIO

GR
3 records

ES Matic SU

Terminated

Helianthus annuus L. · Sunflower

Euralis Semences

IT
3 records

Oryza sativa L. · Rice

RICE TEC INC.

IT
4 records

Helianthus annuus L. · Sunflower

CAUSSADE SEMENCES

IT
3 records

Dassel

Protection expired

Glycine max (L.) Merr. · Soybean

Minnesota Agricultural Experiment Station

IT
3 records

Dario CL

Terminated

Oryza sativa L. · Rice

Sardo Piemontese Sementi Soc. Coop. Società Agricola

IT
4 records

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