Research on the effect of different sowing densities on the yield and yield components of some chickpea (Cicer arietinum L. ) cultivars that sown in winter and spring in Khramanmaraş region

ABSTRACTPhD THESISRESEARCH ON THE EFFECT OF DIFFERENT SOWING DENSITIES ONTHE YIELD AND YIELD COMPONENTS OF SOME CHICKPEA (Cicerarietinum L.) CULTIVARS THAT SOWN IN WINTER AND SPRING INKAHRAMANMARA REGIONDidem Y TO LUDEPARTMENT OF FIELD CROPSINSTITUTE OF NATURAL AND APPLIED SCIENCESUNIVERSITY OF ÇUKUROVASupervisor: Prof.Dr. A.Emin ANLARSALYear : 2006, Pages : 163Jury : Prof. Dr. A.Emin ANLARSALProf. Dr. Hasan GÜLCANProf. Dr. Mustafa ÇÖLKESENProf. Dr. Veyis TANSIYrd. Doç. Dr. B Tuba B ÇERThis study was carried out to aim to determine the most suitable sowing time,cultivar and density in chickpea (Cicer arietinum L.) at the KahramanmaraAgricultural Research Institute Research Land, 2003-04 and 2004-05 years, asearly winter and early spring sown, according to the split plot experiment design withfour replications.In the study, the affects of two different sowing times (Early Winter andEarly Spring), and plant densities (15, 25, 35 and 45 plant per m2) on the yield andyield components of four chickpea cultivars ( zmir-92, Menemen-92, Akçin-91 andDiyar-95) were investigated.As a result of this study, it was determined that different sowing times anddensities had statistically important effect on the seed yield . The values of theseed yields of the varieties were changed between 156.6 and 255.4 kg/da in earlywinter sowing, 126.8 and 216.4 kg/da in early spring sowing in 2003-04; 148.3 and236.0 kg/da in early winter sowing, 120.3 and 215.7 kg/da in early spring sowing in2004-05; and as combined results of two years values were changed between152.4-245.7 kg/da in early winter sowing, 123.5-216.0 kg/da in early spring sowing.The means of two years, the highest seed yields were obtained from Menemen-92and Diyar-95 cultivars and 45 plant/m2 plant density.Key Words: Chickpea (Cicer arietinum L.), cultivar, sowing time, plant rate, yieldII