IR138DMR
ActiveHelianthus annuus L. · Sunflower
Rene Baratin
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
Rene Baratin
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Peter Franck^^^Norbert Starck
Hordeum vulgare L. · Barley
Poznanska Hodowla Roslin Sp. z o.o
Oryza sativa L. · Rice
Hisparroz, S.A.
Helianthus annuus L. · Sunflower
VENTUROLI SEMENTI S.R.L.
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
RAGT Czech s.r.o.,CZ
Brassica napus var. napus · Rapeseed
Monsanto Tehnology, USA
Brassica napus var. napus · Rapeseed
Monsanto Technology, USA
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Oryza sativa L. · Rice
Louisiana State University Agricultural Center
Solanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico BV
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Oryza sativa L. · Rice
Ente Nazionale Risi, BASF Agrochemical Products B.V.
Oryza sativa L. · Rice
Ente Nazionale Risi, BASF Agrochemical Products B.V.
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Oryza sativa L. · Rice
Ente Nazionale Risi, BASF Agrochemical Products B.V.
Oryza sativa L. · Rice
ENTE NAZIONALE RISI
Helianthus annuus L. · Sunflower
BORODIN SERGEJ GEORGIEVICh / ILATOVSKIJ VLADIMIR PLATONOVICh / DETSYNA ALEKSANDR ALEKSANDROVICh / PIGROVA SVETLANA KUZ'MINIChNA / POLTORAKA ALEKSANDR ALEKSEEVICh / BYaTETS VIKTOR IVANOVICh
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Lupinus luteus L. · Yellow lupin
Western Australian Agriculture Authority (WAAA), Grains Research and Development Corporation