The Permian-Triassic Mass Extinction (PTME) is the greatest biodiversity crisis in Earth history and while marine increasingly well constrained, timing cause(s) of terrestrial losses remain poorly understood. There have been suggestions that End-Permian Terrestrial Collapse (EPTC) pre-dated, was synchronous with or post-dated crisis, even occurred asynchronously different regions. We address th...

in order to evaluate the efficacy of maister 3.1% od (foramsulfuron 3% + iodosulfuron 0.1% + isoxadifen-ethyl 3%) in the control of weeds in corn fields, a series of experiments were conducted during 2010 in karaj, zarghan and jiroft. a series of rcbd design with four replications. treatments were application of a) nicosulfuron (kruz) at 2 lit.ha-1, b) bromoxynil+mcpa (bromicid m.a) 1.5 lit.ha-...