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
Euralis Semences FR
Helianthus annuus L. · Sunflower
HIBRISOL S.L.
Zea mays L. · Maize
Ragt, F
Brassica napus var. napus · Rapeseed
Thomas Foubert
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Brassica napus var. napus · Rapeseed
Teresa Huskowska
Helianthus annuus L. · Sunflower
PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA
Helianthus annuus L. · Sunflower
PACUREANU JOITA MARIASTANCIU DANILSTANCIU MARIA
Helianthus annuus L. · Sunflower
Euralis Semences FR
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Helianthus annuus L. · Sunflower
SEMILLAS BATLLE
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Helianthus annuus L. · Sunflower
Patrick Duhigg
Helianthus annuus L. · Sunflower
KOIPESOL SEMILLAS, S.A.
Glycine max (L.) Merr. · Soybean
First Line Seeds Ltd (CA)
Helianthus annuus L. · Sunflower
R 2n (FR)
Triticum aestivum L. · Bread wheat
NICKERSON INTERNATIONAL RESEARCH SNC
Glycine max (L.) Merr. · Soybean
W.G. Thompson & Sons Ltd (CA)
Helianthus annuus L. · Sunflower
Jean Pierre Dufourcq
Solanum tuberosum L. · Potato
Heinrich Böhm
Helianthus annuus L. · Sunflower
DOW AgroSciences
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Festuca rubra L. · Red fescue
Cascade International Seed Company
Hordeum vulgare L. · Barley
Syngenta UK Ltd