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
NUSEED EUROPE
Helianthus annuus L. · Sunflower
Novisad Institute (RS)
Brassica napus var. napus · Rapeseed
Bayer CropScience NV, BE
Brassica napus var. napus · Rapeseed
Andrew Easton
Zea mays L. · Maize
Dekalb Genetics Corporation
Brassica napus var. napus · Rapeseed
Monsanto Technology, F
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Oryza sativa L. · Rice
Sardo Piemontese Sementi Soc. Coop. Società Agricola
Poa pratensis L. · Kentucky bluegrass
TURF-SEED INC
Triticum durum Desf. · Durum wheat
REGAL SEMENTI SRL
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Brassica napus var. napus · Rapeseed
Advanta Semillas S.A.I.C., Pacífic Seeds Pty. Ltd.
Zea mays L. · Maize
Syngenta Seeds
Helianthus annuus L. · Sunflower
Roberto Reid
Helianthus annuus L. · Sunflower
Advanta Seeds International
Helianthus annuus L. · Sunflower
ROTARU VITALIJ FEDOROVICh / ROTARU IGOR' FEDOROVICh / ROTARU TUDOR GRIGOR'EVICh
Helianthus annuus L. · Sunflower
SINISA JOCIC / SANDRA CVEJIC / GORAN MALIDZA / DRAGANA MILADINOVIC / VLADIMIR MIKLIC / NENAD DUSANIC
Helianthus annuus L. · Sunflower
Dusanic Nenad, Miklic Vladimir, Miladinovic Dragana, Malidza Goran, Tsveich Sandra, Jocic Sinisa,
Solanum tuberosum L. · Potato
ZPC Portugal
Solanum tuberosum L. · Potato
ZPC Portugal
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Solanum tuberosum L. · Potato
Kartoffelzucht Böhm GmbH & Co. KG (DE)
Solanum tuberosum L. · Potato
Wbbetal USDA Beltsville ARC
Glycine max (L.) Merr. · Soybean
P. Jeanson