A simple and rapid capillary electrophoretic method was developed for the simultaneous determination of two sulfonylurea herbicides in water samples: metsulfuron-methyl (MSM) and nicosulfuron (NS). These herbicides are widely used in agricultural practices and their residues represent potential environment pollutants in waters and soils. The effect of the pH of the background electrolyte soluti...

ABSTRACf. The recovery of six herbicides (triclopyr, triclopyr ester, sulfometuron methyl, metsulfuron methyl, imazapyr, and hexazinone) was evaluated in two stream water samples, one from Weogufka Creek in the Alabama Piedmont and one from a stagnant stream in the Escambia Experimental Forest near Florida. Simulated field study conditions were used to evaluate collection, ambient (pre-retrieva...

Growth of Zea mays L. cv Potro roots was inhibited by the herbicide metsulfuron methyl (MSM) at the lowest concentration tested: 5 nanomoles per liter. Pretreatment of corn seeds with commercial 1,8-naphthalic anhydride (NA) at 1% (w/w) partially reversed MSM-induced root growth inhibition. MSM at a concentration of 52 nanomoles per liter was taken up rapidly by roots and accumulated in the cor...

In Iran, the Lamiaceae family is represented by 46 genera, 406 species and 97 infraspecific taxa; of these, 165 taxa are endemic. The distribution of family in Iran covers the whole country but the species number decreases from the centre towards the east, south-east and south. 

This paper reports the first C. radiata population with resistance to glyphosate and multiple acetolactate synthase (ALS) inhibitor, imazamox. Two populations, one putative resistant (R) susceptible (S), were used in studies. Dose–response experiments performed evaluate factor (RF). Shikimic acid accumulation, 5-enolpyruvylshikimate-3-phosphate (EPSPS) ALS enzyme activities studied together che...

ABSTRACT Hairy fleabane (Conyza bonariensis L.) is a major weed of the conventional crop systems. Therefore, objectives present study were to assess responses glyphosate-susceptible (S) and -resistant (R) C. at various developmental stages evaluate physiological potential seeds propose alternative herbicides for control this weed. Two experiments performed in replicates. The first experiment wa...

The biology of the weed goat’s-rue, Galega officinalis (Fabaceae), is reviewed. Introduced to Canada in late 19th Century as an ornamental, it has become established at scattered localities and spreading locally southern Ontario. plant considered a noxious legally regulated many jurisdictions due production toxic alkaloids its invasive characteristics. Primarily pastures, grasslands perennial c...

Sulfonylurea (SU) herbicides registered for use in other crops Australia may leave residues the soil interrupting rotations involving soybean. However, two unlinked genes (ALS1 and ALS2) confer SU tolerance Here, we report experiments that explored effectiveness of these ALS Australian soybean germplasm. The first assessed to halosulfuron-methyl or metsulfuron-methyl lines with either zero gene...