Correlation coefficients, path analysis and disease reaction between yield and yield components in Potato (Solanum tuberosum L.) genotypes in Bale, South Eastern Ethiopia

Authors

  • Getachew Workalemahu Oromia Agricultural Research Institute, Sinana Agricultural Research Center, Bale-Robe
  • Wassu Mohammed Haramaya University, School of Plant Science, Dire Dawa

DOI:

https://doi.org/10.14719/pst.2016.3.3.201

Keywords:

Correlation, Path coefficient analysis, Disease progress curve, Percent severity, potato

Abstract

Study on the relationships between yield and its components will improve the efficiency of breeding programmes by determining appropriate selection criteria. An investigation was carried out on 24 potato genotypes to find out the association among yield, yield components and their direct and indirect effects on tuber yield of potato. The experiment was laid out in randomized complete block design with three replications at Sinana Agricultural Research Center. The association was analyzed by correlation coefficient, and further subjected to path analysis to estimate direct and indirect effects of each character on tuber yield. Positive and significant genotypic and phenotypic correlation were found between total tuber yield and marketable tuber yield (rg=0.99), leaf area index (rg=0.82), plant height(rg=0.56), stem number per plant(rg=0.56), average tuber weight (rg=0.74)  and biomass yield (rg=0.69). Path analysis of tuber yield and its components shows that marketable tuber yield and average tuber weight had maximum positive direct genotypic and phenotypic effect on total tuber yield indicating their importance in selection for tuber yield improvement.

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References

Abraham Lamboro, Yohannes Petros and Mebeaselassie Andargie 2014. Correlation and path coefficient analysis between yield and yield components in potato (Solanum tuberosum L.). Plant Science Today, 1(4),196-200. doi: 10.14719/pst.2014.1.4.79.

Berga, L. and Caesar, K, 1990. Relationship between number of main stems and yield components of potato (Solanium tuberosum L. cv. Erntestolz) as influenced by different day lengths. Potato Res. 33: 257-267.

FAO(Food and Agriculture Organization). 2014. FAO statistical databases FAOSTAT http://faostat3.fao.org/ Accessed 8 Jun 2014.

Fekede Girma. 2011. Management of late blight of potato through potato cultivars and fungicides in Harerge highlands. MSC thesis Haramaya University, Ethiopia.

Hamed, F., Saeed, A. G., Reza, A. and Mostafa, A. 2011. Evaluating Correlation and Factor Analysis of Morphological Traits in Potato Cultivars in Fall Cultivation of Jiroft Area Islamic Azad University, Jiroft Branch, Jiroft, Iran. Rurasian Journal of Agricultural and Environmental Science, 11 (5), 679-684.

Hawkes, J. G. 1990. Potato evolution, Biodiversity and Genetic resources. Beethoven Press, London. P.235.

Hossain, M.D., Rabbani M.G. and Mollah M.L.R. 2000. Genetic variability, correlation and path analysis of yield contributing characters in sweet potato. Pakistan Journal of Science. 43: 314-318.

Jaime, S., Ivette, A., Florence, E. and Philippe, B. 2014. Resistance to Phytophthora infestans in Solanum tuberosum landraces in Southern Chile. vol. 39(4):307-315.

Johnson, H. W., Robinson, H. F. and Comstock, R. E. 1955. Estimates of genetic and environmental variability in Soybean. Agronomy Journal, 47, 314-318.

Kumar, S. and Chauchan B. P. S. 1979. Association analysis in the segregating potato progeny. Indian. Journal of Agronomy, 24(4): 501-504.

Majid, K., Reza, Sh.,i., Roza, G., Shahzad, J. and Roghayyeh, Z. 2011. Correlation and Path Analysis Between Yield and Yield Components in Potato (Solanum tubersum L.) Middle-East Journal of Scientific Research 7 (1): 17-21.

Nefo Kedir, Geleto Tilahun and Aman Allo (ed.) 2008. Fifteen years achievement: Oromia Agricultural Research Institute, Sinana Agricultural Research Center, Bale-Robe, Southeast Ethiopia.

Sattar, M. A., Sultana, N., Hossain, M. M., Rashid, M. H. and Islam, K. M. 2007. Genetic variability, correlation and path analysis in potato (Solanum tuberosum L.). Banglades, Journal of Plant Breeding and Genetics, 20(1), 33-38.

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Published

03-08-2016

How to Cite

1.
Workalemahu G, Mohammed W. Correlation coefficients, path analysis and disease reaction between yield and yield components in Potato (Solanum tuberosum L.) genotypes in Bale, South Eastern Ethiopia. Plant Sci. Today [Internet]. 2016 Aug. 3 [cited 2024 Nov. 4];3(3):293-7. Available from: https://horizonepublishing.com/journals/index.php/PST/article/view/201

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Research Articles

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