Variety traits
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.
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
Gertz Maik, Hauer Dietrich,
Zea mays L. subsp. mays (Maize Group) · Maize
PFIZER GENETICS (US)
Zea mays L. subsp. mays (Maize Group) · Maize
MONSANTO TECHNOLOGY
Beta vulgaris Sugar Beet Group · Sugar beet
PETER MADLAINA, HAUER DIETRICH
Zea mays L. · Maize
RAGT 2N S.A.S
Glycine max (L.) Merr. · Soybean
Patrice Jeanson
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Guenter Seitz
Helianthus annuus L. · Sunflower
Lidea France SAS, FR
Zea mays L. · Maize
Joel Meunier
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE N.V./S.A.
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Zea mays L. · Maize
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Brassica napus var. napus · Rapeseed
Jean-Pierre Despeghel, Nelly Guguin,
Zea mays L. · Maize
RAGT 2N S.A.S
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Brassica napus L. · Rapeseed
Bayer CropScience
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Crop Protection AG, CH
Zea mays L. · Maize
Bruno Lefevre
Brassica napus var. napus · Rapeseed
Dirk Decherf
Zea mays L. · Maize
Javier Betran