The Determination of Grain Yield and Yield components of Some Maize Cultivars under Giresun Ecological Conditions

This study was carried out in order to determine the grain yield and yield components of some maize cultivars under Giresun province Bulancak district ecological conditions in 2015. In the study; TK6063, Calcio, Hido, Everest, Carella, Cadiz, Sagunto and Tavascan were used as eight maize cultivars as plant materials. The study was established with “Randomized Complete Block Designed” with three replications. In the study ear height varied from 19.76 to 23.00 cm, ear diameter from 45.33 to 48.86 mm, number of kernels per ear from 14.8 to 18.13 piece, ranked grain number from 32.7 to 37.4 piece, thousand grain weight from 184.6 to 249.0g, grain yield from 655 to 975 kg da-1. In the study, statistically significant differences were found among cultivars in the ear height, number of kernels per ear, thousand grain weight and grain yield. The differences of ear diameter and ranked grain number were found as statistically insignificant. In the study, the highest grain yields were determined in the cultivars of Tavascan (975 kg), Carella (900kg), TK 6063 (881 kg), Sagunto (839 kg), Cadiz (826 kg) and Everest (801 kg) respectively.