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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.

IR138DMR

Active

Helianthus annuus L. · Sunflower

Rene Baratin

UA
5 records

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

Peter Franck^^^Norbert Starck

DE
5 records

Horus

Protection expired

Hordeum vulgare L. · Barley

Poznanska Hodowla Roslin Sp. z o.o

PL
5 records

Oryza sativa L. · Rice

Hisparroz, S.A.

ES
5 records

Flash

Active

Helianthus annuus L. · Sunflower

VENTUROLI SEMENTI S.R.L.

IT
5 records

Fortune

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

IT
4 records

F0143lm

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION

UA
5 records

Dougllas

Active

Helianthus annuus L. · Sunflower

RAGT Czech s.r.o.,CZ

FR
4 records

Brassica napus var. napus · Rapeseed

Monsanto Tehnology, USA

UA
5 records

Brassica napus var. napus · Rapeseed

Monsanto Technology, USA

HU
4 records

CL31

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
5 records

Cl111

Active

Oryza sativa L. · Rice

Louisiana State University Agricultural Center

IT
5 records

Danique

Active

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico BV

NL
7 records

CL28

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
5 records

CL12

Active

Oryza sativa L. · Rice

Ente Nazionale Risi, BASF Agrochemical Products B.V.

IT
5 records

CL46

Active

Oryza sativa L. · Rice

Ente Nazionale Risi, BASF Agrochemical Products B.V.

IT
5 records

Contra

Terminated

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

DE
5 records

CL388

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
6 records

CL15

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
5 records

CL80

Active

Oryza sativa L. · Rice

Ente Nazionale Risi, BASF Agrochemical Products B.V.

IT
5 records

CL33

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
5 records

Buzuluk

Active

Helianthus annuus L. · Sunflower

BORODIN SERGEJ GEORGIEVICh / ILATOVSKIJ VLADIMIR PLATONOVICh / DETSYNA ALEKSANDR ALEKSANDROVICh / PIGROVA SVETLANA KUZ'MINIChNA / POLTORAKA ALEKSANDR ALEKSEEVICh / BYaTETS VIKTOR IVANOVICh

UA
5 records

Arezzo

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FR
5 records

Lupinus luteus L. · Yellow lupin

Western Australian Agriculture Authority (WAAA), Grains Research and Development Corporation

6 records

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