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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.

Beta vulgaris Sugar Beet Group · Sugar beet

RO
2 records

Beta vulgaris Sugar Beet Group · Sugar beet

RO
2 records

GH 2042

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

NL
2 records

Brassica napus var. napus · Rapeseed

HU
2 records

DK Imax CL

Protection expired

Brassica napus var. napus · Rapeseed

CZ
2 records

BIXLEY

Terminated

Sinapis alba L. · White mustard

DK
2 records

Beta vulgaris Sugar Beet Group · Sugar beet

RO
2 records

Bliss

Protection expired

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HU
2 records

AS 34103

Active

Helianthus annuus L. · Sunflower

UA
3 records

Helianthus annuus L. · Sunflower

UA
2 records

Arizona

Active

Glycine max (L.) Merr. · Soybean

IT
2 records

Chameleon

Terminated

Brassica napus var. napus · Rapeseed

IT
2 records

Birko Duo

Terminated

Zea mays L. · Maize

DE
2 records

Asteri YG

Protection expired

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

Helianthus annuus L. · Sunflower

UA
2 records

Beta vulgaris Sugar Beet Group · Sugar beet

RO
2 records

7Pkpw38r

Active

Helianthus annuus L. · Sunflower

UA
2 records

Minosse

Active

Oryza sativa L. · Rice

2 records

Festuca ovina L. · Sheep's fescue

3 records

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