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.
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. · Maize
Syngenta Crop Protection AG
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Triticum aestivum L. · Bread wheat
SAATZUCHT JOSEF BREUN GmbH&Co.KG
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE N.V./S.A., Tienen BE
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE, Einbeck DE
Brassica napus var. napus · Rapeseed
KWS, D
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Solanum tuberosum L. · Potato
Nordkartoffel Zuchtgesellschaft mbH, Ebstorf (DE)
Brassica napus L. · Rapeseed
Bayer CropScience
Brassica napus L. · Rapeseed
Olaf Saass, Werner Paulmann, Martin Frauen,
Brassica napus L. · Rapeseed
NICKERSON INTERNATIONAL RESEARCH SNC
Helianthus annuus L. · Sunflower
NuSeed Americas
Zea mays L. · Maize
Syngenta (CH)
Brassica napus var. napus · Rapeseed
KWS MOMONT RECHERCHE SARL, FR
Beta vulgaris Sugar Beet Group · Sugar beet
SEITZER| Dr. Josef Franz Seitzer in Fa. KWS SAAT AG / JANSEN| Dr. Rudolf Jansen in Fa. KWS SAAT AG / BAROCKA| Dr. Kuno-Helmut Barocka in Fa. KWS SAAT AG / TESCHEMACHER| Dr. Helmut Teschemacher
Zea mays L. · Maize
Monsanto Technology, Missouri US
Helianthus annuus L. · Sunflower
Rene Baratin
Zea mays L. subsp. mays (Maize Group) · Maize
Nickerson SA (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
Henning Friehe
Helianthus annuus L. · Sunflower
Syngenta participation AG
Beta vulgaris Sugar Beet Group · Sugar beet
Henning Friehe
Helianthus annuus L. · Sunflower
Ukrainian Scientific Institute of Plant Breeding (VNIS) LLC