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
Institut za ratarstvo i povrtarstvo, Novi Sad
Triticum durum Desf. · Durum wheat
REGAL SEMENTI SRL
Helianthus annuus L. · Sunflower
ROTARU VITALIJ FEDOROVICh / ROTARU IGOR' FEDOROVICh / ROTARU TUDOR GRIGOR'EVICh
Triticum aestivum L. · Bread wheat
Veselin Dochev, Ivan Panayotov, Ivan Todorov
Triticum durum Desf. · Durum wheat
REGAL SEMENTI SRL
Triticum aestivum L. · Bread wheat
Apsovsementi S.p.A., Co.Na.Se. Soc. Coop. Agr.
Triticum aestivum L. · Bread wheat
Apsovsementi, I
Linum usitatissimum L. · Common flax
Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas
Brassica napus L. · Rapeseed
Teresa Huskowska
Helianthus annuus L. · Sunflower
PHILIPPE JOUVE
Helianthus annuus L. · Sunflower
Institute of Field & Vegetable Crops (RS)
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Brassica napus var. napus · Rapeseed
Andrew Easton
Zea mays L. · Maize
LIMAGRAIN GENETICS GRANDES CULTURES
Helianthus annuus L. · Sunflower
Galin Georgiev Georgiev
Gossypium hirsutum L. · Upland cotton
Sure Grow Seed Inc.
Oryza sativa L. · Rice
RICE TEC INC.
Helianthus annuus L. · Sunflower
Dekalb Genetics Corporation
Oryza sativa L. · Rice
RICE TEC INC.
Gossypium hirsutum L. · Upland cotton
MONSANTO TECHNOLOGY
Festuca ovina L. · Sheep's fescue
PURE SEED TESTING
Gossypium hirsutum L. · Upland cotton
William V. Hugie.
Helianthus annuus L. · Sunflower
SINISA JOCIC / SANDRA CVEJIC / JOCKOVIC MILAN
Zea mays L. · Maize
Institute of Field and Vegetable Crops (SB)