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Abstract                 Volume:9  Issue-2  Year-2021          Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
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Correlation and Path Coefficient Analysis for Grain Yield and Yield Related Trait of Maize (Zea mays L.) Inbreed Lines
Department of Plant Science, College of Agriculture and Environmental Sciences (CAES), Haramaya University (HU), Haramaya, Ethiopia
Department of Plant Science, College of Agriculture and Environmental Sciences (CAES), Haramaya University (HU), Haramaya, Ethiopia
*Corresponding author
Abstract:

In an attempt to study the association of different yield and yield contributing traits are required to know their direct and indirect effects on grain yield. Therefore, the study emphasized to assess the extent of association between traits among themselves and yield to conduct effective selection for grain yield in breeding process. Thirty maize hybrids were planted using Alpha-Lattice Design with three replications during 2018 main cropping season at Haramaya University Research Farm (Raare). The result revealed significant differences between the test entries were observed for all the yield and yield contributing traits. Grain yield had significant positive correlations with above ground biomass, number of ear per plant and thousand kernel weight at genotypic and phenotypic levels. However, days to 50% tasseling and days to 50% silking exhibit negative correlation with grain yield. On the other hand plant height exhibited significant positive correlations with ear height, days to maturity, ear length, ear diameter, number of kernel per row and number of kernel row per ear at phenotypic and genotypic level. There were also significant positive correlations of number of kernel per row with plant height, ear height and number of days to maturity; and number of kernel row per ear with ear length and ear diameter at phenotypic and genotypic level. The path analysis revealed that 1000-kernel weight, number of kernel rows per ear, above ground biomass, and ear length had positive direct effect on grain yield at genotypic and phenotypic level. Therefore, the information generated from this study could be useful for researchers who intend to develop high yielding maize varieties and desirable to recommend the selection criteria for further improvement in maize yield.

Keywords: Association, correlation coefficient, grain yield, maize, path analysis.
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How to cite this article:

Woldu Mogesse. 2021. Correlation and Path Coefficient Analysis for Grain Yield and Yield Related Trait of Maize (Zea mays L.) Inbreed LinesInt.J.Curr.Res.Aca.Rev. 9(2): 138-150
doi: https://doi.org/10.20546/ijcrar.2021.902.010