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.
Helianthus annuus L. · Sunflower
Amelia Bertero
Gossypium hirsutum L. · Upland cotton
STONEVILLE PEDIGREED SEED CO.
Helianthus annuus L. · Sunflower
Remy ROUANET
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Remy Rouane
Helianthus annuus L. · Sunflower
Maisadour Semences, F
Brassica napus var. napus · Rapeseed
PRUVOT JEAN-CLAUDE
Zea mays L. subsp. mays (Maize Group) · Maize
Limagrain Genetics Grandes Cultures SA (FR)
Brassica napus var. napus · Rapeseed
PRUVOT JEAN-CLAUDE
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Brassica napus var. napus · Rapeseed
Yutta Kaizer, Jutta Kaiser,
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Helianthus annuus L. · Sunflower
Limagrain Europe Biopole Clermont-Limagne, FR
Helianthus annuus L. · Sunflower
Roberto Reid
Triticum aestivum L. · Bread wheat
Saaten Union Recherche SARL, Estrées-Saint -Denis FR
Helianthus annuus L. · Sunflower
Sadik El Sayed
Helianthus annuus L. · Sunflower
Skoric, Dragan / Jocic, Sinisa / Malidza, Goran
Brassica napus var. napus · Rapeseed
Stuart Growers
Helianthus annuus L. · Sunflower
Remy ROUANET
Brassica napus var. napus · Rapeseed
DOW AgroSciences
Helianthus annuus L. · Sunflower
MAS SEEDS
Zea mays L. · Maize
Syngenta Crop Protection AG
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION