Principal Component and Factor Analysis in Advance Barley Genotypes under Drought Condition

Author: Yogender Kumar, Harsh Chaurasia, Divya Phougat and Ashok and Sachin

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Abstract

The present study aimed to determine the genetic variability among barley (Hordeum vulgare L.) genotypes for 12 yield and its attributes using principal component method. The experimental material consisted of thirty barley genotypes grown under drought condition at Barley Research Area, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar during 2015-16 and 2016-17. The experiment was laid in randomized block design with three replications with a plot size of 2.3 m2. Estimates of coefficients of variation (CV) were observed highest for initial vigour followed by number of grains per spike whereas days to heading and maturity exhibited the lowest coefficients of variation. First five principal components had eigen values more than one and altogether explained 73.05 % of the total variation in 12 traits which were mainly associated with 1000-grain weight, culm thickness and spike length; germination percent and initial vigour; days to heading and maturity, number of effective tillers per meter and grain yield; number of grains per spike; and internode length and plant height. The remaining principal components could not be considered of much useful for barley improvement because of very small contribution towards total variation. Among the material evaluated under drought, the genotypes viz., JB 481, Lakhan, 2nd GSBSN 28 and Azad were found to have high yield potential. The results of the current investigation exhibits evidence of having variability in studied barley genotypes and thus confirm the adequacy of the principal component method in genetic studies.

Keywords

Barley, drought, factor analysis, principal components, variation

Conclusion

Among the experimental material evaluated under drought, the genotypes namely JB 481, Lakhan, 2nd GSBSN 28 and Azad exhibited high yield potential, thus can be used breeding programme aimed to develop drought tolerant genotypes. Further, the results of the current investigation revealed evidence of having variability in studied barley genotypes and thus confirm the adequacy of the principal component method in genetic studies.

References

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How to cite this article

Yogender Kumar, Harsh Chaurasia, Divya Phougat and Ashok and Sachin (2024). Principal Component and Factor Analysis in Advance Barley Genotypes under Drought Condition. Biological Forum – An International Journal, 16(3): 09-13.