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

Sunflower 725 Sugar beet 195 Maize 147 Rapeseed 111 Rapeseed 96 Rice 91 Potato 89 Bread wheat 89 Maize 49 Soybean 47 Sweet corn 17 Upland cotton 15

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.

Táborská

Protection expired

Festuca rubra L. · Red fescue

CZ SK

4 records

Leonasun SU

Active

Helianthus annuus L. · Sunflower

RO SK

4 records

GSS 9299

Active

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

HU NL

4 records

X4428

Active

Helianthus annuus L. · Sunflower

6 records

Rustica 172

Active

Helianthus annuus L. · Sunflower

Active

Zea mays L. · Maize

BG HU

6 records

Colibri CL

Application submitted

Brassica napus L. · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

EE LT LV

3 records

Catmandu CL

Application submitted

Brassica napus L. · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

EE LT LV

3 records

Insun 277 SU

Active

Helianthus annuus L. · Sunflower

Jean Pierre Dufourcq

IT UA

4 records

Himalaya CL

Active

Brassica napus var. napus · Rapeseed

Mari-Od Vankherseke

5 records

1 2 ... 29 30 31 32 33 34 35 ... 78 79 Next

Jump to page 11 22 23 42 45 56 68

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.