Frieslander
Protection expiredSolanum tuberosum L. · Potato
Selectiebedrijf KOOI (NL)
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.
Solanum tuberosum L. · Potato
Selectiebedrijf KOOI (NL)
Triticum aestivum L. · Bread wheat
Secobra Saatzucht
Helianthus annuus L. · Sunflower
Syngenta Participations,CH
Helianthus annuus L. · Sunflower
Euralis Semences, F
Beta vulgaris Sugar Beet Group · Sugar beet
MariboHilleshög AsP, Holeby , DK
Triticum aestivum L. · Bread wheat
Unisigma GIE Recherche et Selection (FR)
Helianthus annuus L. · Sunflower
Pioneer Overseas Corporation US (USA)
Helianthus annuus L. · Sunflower
Shatsman Dmytro Oleksandrovych
Triticum aestivum L. · Bread wheat
Limagrain Europe, F
Solanum tuberosum L. · Potato
Private (NL)
Solanum tuberosum L. · Potato
PLANT BREEDING INTERNATIONAL CAMBRIDGE
Helianthus annuus L. · Sunflower
Euralis Semences
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Helianthus annuus L. · Sunflower
Syngenta Participations AG| CH
Glycine max (L.) Merr. · Soybean
Patrice Jeanson
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE, N.V./S.A.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
KWS| KWS SAAT AG
Helianthus annuus L. · Sunflower
Syngenta Participations AG., Basel CH
Glycine max (L.) Merr. · Soybean
Patrice Jeanson
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE and CO KGAA
Helianthus annuus L. · Sunflower
Martin Ganssmann
Triticum aestivum L. · Bread wheat
SARL ADRIEN MOMONT ET FILS, FR