Academic Research Journal of Agricultural Science and Research
 

Vol. 6(9), pp. 526-530. December, 2018.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASRD2018.074

Full Length Research

Correlation and Path coefficient Analysis of Yield and Yield related Traits interactions in Ethiopian Cowpea (Vigina Unguiculata Walp L.) Accessions

Dagmawit Tsegaye¹, Hussein Mohammed ² and Berhanu Amsalu¹

^1. Melkassa Agriculture Research Center, P.O.Box 436, Nazreth Ethiopia

^2. Hawassa University College of Agriculture, Hawassa Ethiopia

Corresponding author: Dagmawit Tsegaye Arega, Email: Damy.we@gmail.com

Accepted 7 November 2018

Cowpea (Vigina unguiculata L.) is an annual pulse crop that belongs to the family fabaceae. Even though Ethiopia is secondary center of diversity for the crop, the current knowledge about its variety development and agronomy is neither complete nor conclusive through research under Ethiopian condition. To fill the existing gaps, a field experiment was conducted during 2015 main season at Melkassa Agricultural Research Center. Thirty cowpea   accessions with six standard checks were tested in triple lattice design. Data for 13 agronomic traits were measured and statistically tested. Seed yield showed positive and significant phenotypic association with pod length, number of pods bearing cluster  plant-1, number of pods plant-1, number of seeds plant-1 , 100-seed weight, harvest index and biomass yield. Harvest index also showed positive correlation with seed yield at genotypic level. Therefore, any improvement of these traits may result in a substantial increase on seed yield.  At genotypic and phenotypic level, seed pod, number of pods plant-1, 100-seed weight, harvest index, number of nods plant -1, and those traits exerted positive direct effect on seed yield. So, those traits are the major direct contributors to grain yield. These characters should therefore receive the highest priority in developing high yielding cowpea varieties.

Key words: Correlation, direct and indirect effect path analysis, Vigina unguculata

How to cite this article (APA Style):

Tsegaye, D., Mohammed, H., Amsalu, B. (2018). Correlation and Path coefficient Analysis of Yield and Yield related Traits interactions in Ethiopian Cowpea (Vigina Unguiculata Walp L.) Accessions. Acad. Res. J. Agri. Sci. Res. 6(9): 526-530