STUDY OF THE CORRELATIONS AMONG THE MAIN FEATURES OF THE PLANT IN SOME MAIZE INBRED LINES AND THEIR HYBRID COMBINATIONS IN THE CONDITIONS OF ISTOG, KOSOVA

In this paper, it is presented the results of the study of the correlations among some important features of the plant in 10 maize inbred lines and their 20 hybrid combinations. The goal is to determine the emergence of the correlations among these features in three genotypic states: the lines in the role of the maternal and paternal parent and the hybrid combinations. From this study, it results to have strong positive correlations among the plant height and the height of the first corn cob. Also, it is observed to have positive correlations among the plant height with the number of the leaves and the height up to the first corn cob with the number of the leaves. Negative correlations are noticed among the length and the width of the leaf. Regarding the measure of the occurrence of the correlations among these features in the inbred lines (homozygote genetic state) and their hybrid combinations (homozygote state), there are observed changes in the size of the correlation coefficient, but not tending to bonding among them. The study of these links/correlations directs us in the process of selecting inbred lines and their hybrid combinations.