Genetic variability among maize hybrids for yield and yield components.

Abstract

Sixteen hybrids of different genetic background were tested under field conditions at Zemun Polje in the vicinity of Belgrade, Serbia. The aim of the study was to observe genetic variability of yields and yield components of the stated hybrids under our agroecological conditions. Hybrids belong to different FAO maturity groups and have different kernel type. The obtained yield significantly varied over hybrids at the probability level of P=0.05. Yield components (ear length, kernel row number, number of kernels per row and ear diameter) also differed at the probability level of P=0.05. The strongest positive correlation (0.755) was recoded between the ear length and the kernel row number, while the weakest positive correlation (0.183) was detected between the yield and the kernel row number.