Genetic Variability, Correlation and Path Coefficient Analysis in Hybrid Maize (Zea mays L.)

The goal of the current investigation was to determine correlation coefficient, path analysis and genetic variability among twenty four maize hybrids for ten characters in a Randomized Block Design (RBD) with three replications at research field Plant Breeding Division, Regional Agricultural Research Station, Barisal, Bangladesh Institute (BARI), during rabi season 2014-15.
 measured traits were Days 50% tasseling (DT), days silking (DS), anthesis interval (ASI), plant height (PH), ear (EH), maturity (DM), cob length (CL), diameter (CD), thousand seed weight (TSW) yield(yield t/ha). Here yield considered as dependent variable rest parameters independent variable. data submitted variance mean values compared by DMRT test both 5% 1% probability. Positive significant genotypic, phenotypic coefficient recorded (rg=0.75**, rp=0.61**), (rg=0.66**and rp=0.42**), (rg=0.62**and rp=0.55**), rp=0.55**) (rg=0.36**and rp=0.44**). High genotypic variation (GCV) obtained from (17.26), (15.17), (13.80) (9.43). highest (PCV) observed (26.49) followed (20.51), (16.19) lowest (0.70). difference between GCV PCV indicated that had some environmental influence. heritability (73.78) (72.67), (59.52) (55.97) but identified (18.98). higher aforementioned indicative selection. positive direct effect (1.34) on (0.75), CD (0.46) (0.41), (0.21) (0.20) indicating effectiveness Direct negative shown (-1.03), (-0.52) (-0.50) indirect