Genetic Variability and Path Analysis Studies in Barley (Hordeum vulgare L.)

  • Mohammad Quamrul Islam Matin Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
  • Mohammad Amiruzzaman Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
  • Md. Motasim Billah Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
  • Most. Bilkis Banu Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
  • Nazmun Naher Pulse Research Sub-Station, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
  • Dilwar Ahmed Choudhury Director General’s Office, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701
Keywords: Genetic Variability, Path Co-Efficient, Barley

Abstract

The present study was carried out to investigate the correlation coefficient, path analysis and genetic variability among some barley varieties for nine characters in a Randomize Block Design (RBD) with three replications in three environments of Bangladesh. High genotypic coefficient of variation (GCV) was obtained from grain/ spike (29.89 %), yield/ plant (28.72%) and effective tiller/plant (21.86 %) and spike length (13.56 %). The characters with high GCV indicated high potential for selection. The highest heritability (Hb) was observed for 1000 seed weight (95.09) followed by yield/ plant (93.98), grain/ spike (92.09) and spike length (69.93), days to heading (72.65) but the lowest Hb was identified for effective tiller/plant (22.41) followed by the plant height (34.21). Those traits with higher heritability may be considered for selection. Grain/ spike had the highest positive direct effect (5.65) on yield followed by 1000 seed weight (4.65), spike length (1.26), yield/ plant (0.66), days to heading (0.55) and days to maturity (0.34). These parameters were identified as direct selection. Direct negative effect on yield was shown by plant height (-0.32) and effective tiller/plant (-0.74). This was an indication of indirect selection.

Int. J. Appl. Sci. Biotechnol. Vol 7(2): 243-247

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Abstract
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Published
2019-06-27
How to Cite
Matin, M. Q. I., Amiruzzaman, M., Billah, M. M., Banu, M. B., Naher, N., & Choudhury, D. A. (2019). Genetic Variability and Path Analysis Studies in Barley (Hordeum vulgare L.). International Journal of Applied Sciences and Biotechnology, 7(2), 243-247. https://doi.org/10.3126/ijasbt.v7i2.24635
Section
Research Articles