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.
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Zea mays L. · Maize
RAGT 2N S.A.S
Zea mays L. · Maize
Stephane Melkior
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE, Einbeck DE
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans Georg Lembke KG,DE
Zea mays L. · Maize
RAGT 2N S.A.S
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Helianthus annuus L. · Sunflower
MAS SEEDS
Brassica napus var. napus · Rapeseed
Limagrain Europe S.A.S
Brassica napus var. napus · Rapeseed
MONSANTO| Monsanto SAS Europarc du Chene
Brassica napus L. · Rapeseed
Bayer CropScience
Brassica napus L. · Rapeseed
Rapool Bulgaria EOOD (BG)
Brassica napus var. napus · Rapeseed
BUSCH HEINRICH / TETZNER INGA
Helianthus annuus L. · Sunflower
Tierry Andre
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
Remy ROUANET
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
Karine Bounan-Henry
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
Tsevma Volodymyr Mykolaiovych, Doroshevskyi Oleksandr Volodymyrovych,