effect of tillage systems on growth and productivity of eight bread wheat cultivars

Abstract

A field experiment was carried out in one of the agricultural fields in Abu Ghraib region during the winter season of 2018-2019 in order to study the effect of plowing systems on the growth and productivity of eight cultivars of wheat crop in a silty clay loam, field land which was not sown in the previous season. Two tillage systems were used (no-tillage and tillage) to grow the wheat crop, moldboard plows and harrow (local made). The cultivars were (Wafia, Adena, Araz, Erratum, Pura, Spelta, Doru, and Cymto). Randomized complete blocks design (RCBD) was used in a split plot arrangement with three replications. Results revealed that Adena predominated in plant height (87.77 cm), spike length (10.68 cm) tillers (4.695 tiller plant-1), whereas Cymto was superior in plant dry weight (80.00 g), thousand grains weight (54.80 g), grains yield per unit (5.535 Kg). Genetic material of Azar, Adena and Cymto cultivars was the best, as it was clearly manifested in the phenotypic components of wheat.