Izadi-Darbandi, E., Aliverdi, A. (2015). Optimizing Sulfosulfuron and Sulfosulfuron Plus Metsulfuron-methyl Activity when Tank-Mixed with Vegetable Oil to Control Wild Barley (Hordeum spontaneum Koch.). , 17(7), 1769-1780.
E. Izadi-Darbandi; A. Aliverdi. "Optimizing Sulfosulfuron and Sulfosulfuron Plus Metsulfuron-methyl Activity when Tank-Mixed with Vegetable Oil to Control Wild Barley (Hordeum spontaneum Koch.)". , 17, 7, 2015, 1769-1780.
Izadi-Darbandi, E., Aliverdi, A. (2015). 'Optimizing Sulfosulfuron and Sulfosulfuron Plus Metsulfuron-methyl Activity when Tank-Mixed with Vegetable Oil to Control Wild Barley (Hordeum spontaneum Koch.)', , 17(7), pp. 1769-1780.
Izadi-Darbandi, E., Aliverdi, A. Optimizing Sulfosulfuron and Sulfosulfuron Plus Metsulfuron-methyl Activity when Tank-Mixed with Vegetable Oil to Control Wild Barley (Hordeum spontaneum Koch.). , 2015; 17(7): 1769-1780.

Optimizing Sulfosulfuron and Sulfosulfuron Plus Metsulfuron-methyl Activity when Tank-Mixed with Vegetable Oil to Control Wild Barley (Hordeum spontaneum Koch.)

Journal of Agricultural Science and Technology
Article 10, Volume 17, Issue 7, 2015, Pages 1769-1780    PDF (1.43 M)
Authors
E. Izadi-Darbandi* 1; A. Aliverdi2
1Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Islamic Republic of Iran.
2Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Islamic Republic of Iran.
Abstract
Wild barley has invaded wheat fields ever since flamprop-isopropyl was outdated in Iran. Newly developed herbicides such as sulfosulfuron or sulfosulfuron plus metsulfuron-methyl can control it at higher than recommended dosages, but causing significant wheat injury. Hence, two dose-response experiments were conducted to evaluate their efficacy when tank-mixed with thirteen different vegetable oils, at the Ferdowsi University of Mashhad, Iran, during 2013. Moreover, a wheat cultivar (Gaskogen) was also treated with effective dose of 90% (ED90) of both herbicides (21.44 grams active ingredient (g ai) of sulfosulfuron ha-1 and 41.95 g ai of sulfosulfuron plus metsulfuron-methyl ha-1) with and without each vegetable oil to check selectivity. Averaged over vegetable oils, the effective dose of 50% (ED50) was decreased 2.6- and 3.0-fold with sulfosulfuron and sulfosulfuron plus metsulfuron-methyl, respectively. Among the evaluated vegetable oils, cottonseed and coconut oil were the best ones to enhance the efficacy of both herbicides. The castor oil had the least effect. A negative correlation was observed between the efficiency of vegetable oils and its unsaturated/saturated fatty acids ratio. No phytotoxic effect on wheat was observed when these herbicides were applied with or without the vegetable oils.
Keywords
Crop selectivity; Herbicide efficacy; Penetrant agent; vegetable oils; Wild barley
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