Greener Journal of Plant Breeding and Crop Science

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Greener Journal of Plant Breeding and Crop Science

Vol. 6(3), pp. 15-25, 2018

ISSN: 2354-2292

Copyright ©2018, the copyright of this article is retained by the author(s)

DOI Link: http://doi.org/10.15580/GJPBCS.2018.3.092818140

http://gjournals.org/GJPBCS

 

Correlation and Path Coefficient Analysis for Yield and Yield Related Traits of Upland Rice (Oryza sativa L.) Genotypes in Northwestern, Ethiopia

 

 

 

Tewachew Atsedemariyam

 

 

 

Ethiopian Institute of Agricultural Research P.O.Box, 2003, Addis Ababa, Ethiopia. Pawe Agricultural Research center, P.O.Box, 25, Pawe, Ethiopia.

 

 

 

 

ARTICLE INFO

ABSTRACT

  

  Article No.: 092818140

  Type: Research

  DOI:10.15580/GJPBCS.2018.3.092818140

 

 

This research was conducted with the objective of assessing the trait association and direct and indirect effects of yield related traits on grain yield of upland rice genotypes. A total of 23 rice genotypes evaluated in randomized complete block design with three replications in 2017 main cropping season at Pawe and Assosa. Grain yield exhibits highly significant (p 0.01) positive genotypic correlation with days to maturity (rg=0.61), kernel length (rg=0.55) and plant height (rg=0.59) at both locations, grain yield showed significant positive phenotypic correlations with plant height (rp=0.44) and thousand grain weight (rp=0.29). The genotypic path coefficient analysis at Pawe revealed that days to maturity, plant height and length width ratio exerted highest positive direct effect on grain yield and at Assosa thousand grain weight and panicle length exerted positive direct effect on grain yield at phenotypic level. The existence of strong positive correlation between grain yield and other traits helps in identifying traits that could be used for indirect selection for the improvement of grain yield. Therefore, to facilitate selection in breeding for high yield and other desirable traits, it is logical to examine various components and give more attention to those having the greatest influence on grain yield.

 

  Submitted: 28/09/2018

  Accepted: 09/10/2018

  Published: 03/12/2018

 

  *Corresponding Author

  Atsedemariyam Tewachew

  E-mail: atsdemary21@ gmail.com

 

  Keywords:

  Correlation, Direct effect, Indirect effect, Rice and Path coefficient analysis.

 

 


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Cite this Article: Tewachew, A (2018). Correlation and Path Coefficient Analysis for Yield and Yield Related Traits of Upland Rice (Oryza sativa L.) Genotypes in Northwestern, Ethiopia. Greener Journal of Plant Breeding and Crop Science, 6(3), 15-25, http://doi.org/10.15580/GJPBCS.2018.3.092818140.

 

 

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