A field experiment was established to evaluate quantitative changes in weed species prevailing a crop rotation and 30-year cereal monoculture. The subject of the study included cropping systems: a) rotation, b) First (1989–1992) second (1993–1996) focused on infestation winter triticale monoculture; third (1997–2000) fourth (2001–2004) wheat; fifth (2005–2008), sixth (2009–2012), seventh (2013–...

During a survey of saprophytic microfungi on decomposing woody, herbaceous debris and soil from different regions in Southern Europe, a wide range of interesting species of asexual ascomycetes were found. Phylogenetic analyses based on partial gene sequences of SSU, LSU and ITS proved that most of these fungi were related to Sordariomycetes and Dothideomycetes and to lesser extent to Leotiomyce...

This paper analyses the behavior of a hardware implementation of Genetic Programming using Field Programmable Gate Arrays. Three crossover operators that limit the lengths of programs are analyzed. A truncating operator, a limiting operator that constrains the lengths of both offspring and a limiting operator that only constrains the length of one offspring. The latter has some interesting prop...

A grazing trail was conducted to evaluate the effect of five stocking rates 12, 18, 24, 30 and 36 sheep/ha) on chemical composition Rhodes grass (Chloris gayana)- Stylo (Stylosanthes guinanensis) pastures in Nigeria. The were set stocked for 154-210 days over periods. Stocking rate had no significant (P>0.05) crude protein (CP), phosphorus (P), potassium (K), calcium (Ca) magnesium Mg) conte...