This paper is based on a presentation by Professor Claudio de Moura Castro on Brazilian higher education at a CDE Roundtable: ‘Reflecting on Brazil’s Success’. Professor de Moura Castro was part of a Brazilian delegation of experts brought to CDE for a series of workshops. (See CDE, Reflecting on Brazil’s Success: How Durable? What Lessons for South Africa? CDE Roundtable, No. 20, September, 2012)

field experiments were conducted in zanjan, markazi, esfahan, and chaharmahal va bakhtiari provinces to evaluate imazetapyr herbicide efficiency for weed control in common bean (phaseolus vulgaris l.) in 2006. there were four replications at each site and treatments were arranged in a randomized complete block design. in zanjan, maximum weed biomass reduction by 91 and 88 percent were achieved ...