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.
Triticum aestivum L. · Bread wheat
KWS MOMONT RECHERCHE SARL, FR
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE N.V./S.A. (BE)
Helianthus annuus L. · Sunflower
SEMUNDO ITALIA S.R.L.
Zea mays L. subsp. mays (Maize Group) · Maize
RAGT SA (FR)
Helianthus annuus L. · Sunflower
Euralis Semences FR
Brassica napus var. napus · Rapeseed
Euro Grass Breeding GmbH & Co. KG (DE)/Monsanto Technology LLC (US)
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed GmbH (DE)
Helianthus annuus L. · Sunflower
Rustica Prograin Genetique SA (FR)
Brassica napus L. · Rapeseed
Werner Paulmann, Andreas Girke,Martin Frauen
Brassica napus var. napus · Rapeseed
Gunhild Leckband Dieter Stelling
Zea mays L. subsp. mays (Maize Group) · Maize
SYNGENTA SEEDS AG, CH
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
Ragt 2n, F
Helianthus annuus L. · Sunflower
ISEA S.R.L. / SUPERSEED
Helianthus annuus L. · Sunflower
Elena Andreea Teodorescu
Helianthus annuus L. · Sunflower
SEMILLAS BATLLE
Helianthus annuus L. · Sunflower
SYNGENTA FRANCE S.A.S.
Helianthus annuus L. · Sunflower
Syngenta Participations AG., Basel CH
Helianthus annuus L. · Sunflower
Kotai Csaba, Dr. Janos Matuz,
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Glycine max (L.) Merr. · Soybean
Stine Seed Company
Helianthus annuus L. · Sunflower
Pablo Bergada
Helianthus annuus L. · Sunflower
Pablo Bergada, Francisko Firpo,
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA