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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (937) Last page : (942)
Article doi: : http://dx.doi.org/10.18782/2320-6828

Correlation and Path Coefficient Analysis of Traits Associated to Grain Protein Concentration and Yield in Wheat (Triticum aestivum L.) Cultivars

Sukhpreet Kaur Sidhu* and D. S. Gill

Department of Botany, Punjab Agricultural University, Ludhiana 141004, Punjab, India
*Corresponding Author E-mail: preetsidhu-cobsbot@pau.edu
Received: 27.08.2018  |  Revised: 13.09.2018   |  Accepted: 20.09.2018  

 ABSTRACT

The present investigation was carried out to study the path coefficient and correlation analysis for 10 and 15 metric characters of three wheat cultivars were grown under two nitrogen (N) doses @120 and 180 kg N ha-1 respectively at Punjab Agricultural University, Ludhiana. The correlation analysis showed significant positive correlation of biological yield (r = 0.9766**), total plant nitrogen at physiological maturity (r = 0.9688**), grain protein yield (r = 0.9069**) and grain protein concentration (r = 0.8236**) on grain yield. Further path analysis was performed to partition the Pearson correlation into direct and indirect effects. Path analysis revealed that vegetative nitrogen had more direct (P9 11 = 0.5329) significant positive influence on grain yield. Vegetative nitrogen at maturity significant positively correlated with remobilized (r93 = 0.6764) and it contribute more indirectly through grain protein yield (r92P2 11 = 0.2607). Remobilized nitrogen had negative direct effect on grain yield (P3 11 = -0.2516). A significant positive correlation of grain yield with harvest index (r =0.9833**) followed by vegetative nitrogen at milky stage (r = 0.9693**). Correlation between accumulated dry matter at post anthesis stage had significantly positive (r = 0.8543**) correlation.

Key words: Triticum aestivum, Grain, Spikes, Nitrogen

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Sidhu, S.K. and Gill, D.S., Correlation and Path Coefficient Analysis of Traits Associated to Grain Protein Concentration and Yield in Wheat (Triticum aestivum L.) Cultivars, Int. J. Pure App. Biosci.6(5): 937-942 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6828