Vol. 7, Issue 3 (2019)
Simple correlation and phenotypic path coefficient analysis in oat germplasm
Author(s): Harshita Negi, Birendra Prasad, Anil Kumar and Sumit Kumar
Abstract: To study character association and path coefficient analysis, 57 oat genotype (54 germplasm+3check) were evaluated for characters under study i.e. plant height at 65 days after sowing(cm), tillers/ plant, plant height at 50% heading, plant height at maturity, days to 50% flowering, glume length, panicle length, green fodder yield/ plant, dry matter %, dry fodder yield/ plant, leaf stem ratio, grain yield /m row, 100 seed weight, crude protein%, NDF(%) and ADF(%). The correlation studies revealed positive and significant correlation of characters like Tillers per plant, Days to 50% flowering, Panicle length, dry fodder yield per plant, leaf stem ratio and grain yield per meter row showed positive and highly significant correlation with green fodder yield/plant whereas, characters like plant height, panicle length, green fodder yield per plant and leaf stem ratio shows positive and highly significant correlation with grain yield /m row. Path coefficient analysis revealed that dry fodder yield per plant and leaf stem ratio exhibited the highest positive direct effect on green fodder yield/plant followed by plant height and grain yield. Also, positive direct effects on green fodder yield were observed for tillers per plant and days to 50% flowering. However, the highest negative direct effect on green fodder yield per plant was exhibited by dry matter %, plant height at 50% flowering. Panicle length showed negative direct effects but its strong positive correlation with green fodder yield/plant could be due to the indirect effects through dry matter %. Similarly, tillers per plant have a high indirect effect on green fodder yield through dry fodder yield/ plant and plant height at 50% flowering also exhibited indirect effect through dry fodder yield/plant. The strong association of these traits revealed that the selection based on these traits would ultimately improve green fodder yield and seed yield and it was also suggested that hybridization of genotypes possessing the combination of above characters was most useful for obtaining desirable high yielding genotypes.
Pages: 1174-1178 | 652 Views 94 Downloads
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How to cite this article:
Harshita Negi, Birendra Prasad, Anil Kumar, Sumit Kumar. Simple correlation and phenotypic path coefficient analysis in oat germplasm. Int J Chem Stud 2019;7(3):1174-1178.
