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
STELLING DIETER / LECKBAND GUNHILD
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS, D
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Helianthus annuus L. · Sunflower
Syngenta Participations AG., Basel CH
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INTERNATIONAL
Glycine max (L.) Merr. · Soybean
LIDEA FRANCE SAS
Helianthus annuus L. · Sunflower
KWS SAAT SE, DE
Helianthus annuus L. · Sunflower
KWS SAAT SE, DE
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Thierry Andre
Helianthus annuus L. · Sunflower
Euralis Semences FR
Triticum aestivum L. · Bread wheat
Sogroup (FR)
Glycine max (L.) Merr. · Soybean
W.G. TOMPSON AND SONS LTD.
Helianthus annuus L. · Sunflower
Frantz Boudet
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH, Probstdorf AT
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Helianthus annuus L. · Sunflower
Sebastien Chatre
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S