Asia minor bluegrass (Polypogon fugax) is a common annual grass weed of winter crops distributed across China. We conducted a study on the resistance level and the mechanism of resistance to ACCase-inhibiting herbicides in a P. fugax population from China. Whole-plant dose-response experiments in greenhouse showed that the resistant P. fugax population was 1991, 364, 269, 157, and 8-fold resist...

Quizalofop-p-ethyl (QPE) is a post-emergence herbicide that effectively controls grass weeds and is often detected in the environment. However, the biochemical and molecular mechanisms of QPE degradation in the environment remains unclear. In this study, a highly effective QPE-degrading bacterial strain J-2 was isolated from acclimated activated sludge and identified as a Pseudomonas sp., conta...

Weeds create a great problem for soybean production and to overcome this large number of weedicides are being applied prevalently worldwide. Gradually increasing the use chemical herbicides, not only creating resistance against these chemicals among weeds polluting environment, but also influencing main crop deteriorating produce quality. To focus two-year experiment was laid down during ‘khari...

field studies were conducted at lorestan, kermanshah and golestan provinces in 2006 to separately evaluation of clethodim herbicide for weedy grass control in soybean. all experiments were designed as randomized complete blocks with four replicates. treatments included: clethodim at 0.6, 0.8, 1, and 1.2 l/ha; cycloxydim at 3 l/ha; haloxyfop-r-methyl at 0.75 l/ha; quizalofop-p-ethyl at 2 l/ha; a...

Haloxyfop-ethoxyethyl (HE) is a herbicide active against most grasses, whereas dicotyledonous plants are rather resistant to it. The effects of HE on the growth of wheat seedling leaves (cv. Almari) as well as the activity of several enzymes involved in the plant defense system against stress such as superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (POX), ascorbate peroxidase (AP...

Haloxyfop-p-methyl ester (HPME) ((R)-2-{4-[3-chloro-5-(trifluoromethyl)-2-pyridyloxy]phenoxy}propionic acid), is a selective aryloxyphenoxypropionate (AOPP) herbicide. It exerts phytotoxicity through inhibition of lipid metabolism and induction of oxidative stress in susceptible plants. This study investigated the toxicological potentials of HPME in rats. Twenty-four male Wistar rats (170-210 g...