Determination of the effect of different planting systems on grain yield and some agromorphological characteristics of corn in the second crop conditions of Cukurova region

The aim of this study was to determine the effect of twin and single row planting sytems and sowing rates (10 cm, 14 cm and 18 cm plant to plant density) on grain yield and some other plant characteristics in the grain maize, grown in the second crop conditions of the experimental area of Çukurova University, Agricultural Faculty, Field Crops Department in 2017 growing period. The experiment was arranged in split-split plot design with three replications. According to the results obtained from this study, different planting systems had a significant effect on the ear height, stem diameter, ear diameter, number of grains per ear, ear weight, grain yield per ear, thousand grain weight and grain yield; hectoliter weight was not affected and the highest grain yield was obtained from the traditional single row sowing method and 18 cm seeding rate.