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. subsp. mays (Maize Group) · Maize
MONSANTO TECHNOLOGY
Helianthus annuus L. · Sunflower
Euralis Semences
Gossypium hirsutum L. · Upland cotton
Ana Stoilova, Tudorina Nistor
Linum usitatissimum L. · Common flax
Baltarusijos linininkystės mokslo tiriamasis institutas
Zea mays L. · Maize
Zatyshniak Oksana Vaderiivna, Denysiuk Kateryna Viktorivna, Kovalov Denys Volodymyrovych, Kanibolodskyi Oleksandr IUriiovych, Olizko Oleksii Petrovych, Abelmasov Oleksii Viktorovych, Haidash Oleksandr Leonidovych, Bodenko Natalia Anatoliivna, Cherchel Vla
Brassica napus L. · Rapeseed
Gunhild Leckband Dieter Stelling
Brassica napus L. · Rapeseed
Nelly Guguin, Jean-Pierre Despeghel,
Zea mays L. subsp. mays (Maize Group) · Maize
Dekalb Genetics Corporation (usa) (US)
Gossypium hirsutum L. · Upland cotton
DELTA&PINE LAND HOLDING
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «AVS STANDART»
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
Brassica napus L. · Rapeseed
Monsanto SAS Boissay Toury FR
Brassica napus L. · Rapeseed
Dieter Stelling Gunhild Leckband
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Zea mays L. · Maize
Dekalb Genetics Corporation
Beta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed APS
Helianthus annuus L. · Sunflower
Adnan Esmer
Zea mays L. · Maize
CIBA GEIGY SPA- DIV. SEMENTI
Brassica napus L. · Rapeseed
Lantmaennen ek foer
Helianthus annuus L. · Sunflower
CAUSSADE SEMENCES
Oryza sativa L. · Rice
INSTITUTO HISPANICO DEL ARROZ, S.A. (HISPARROZ)
Helianthus annuus L. · Sunflower
CECOSA
Oryza sativa L. · Rice
SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.
Helianthus annuus L. · Sunflower
CAUSSADE SEMENCES