Research Article | OPEN ACCESS
Interrelationship and Path Coefficient Analysis of Yield Components in F4 Progenies of Tef (Eragrostis tef)
1Abel Debebe, 2Harijat Singh and 3Hailu Tefera
1Melkassa Agricultural Research Center P.O. Box 436, Nazreth, Ethiopia
2Harama University P.O. Box 138, Dire Dawa Ethiopia/Present Address: Canadian Food
Inspection Agency, Toronto, Canada
3IITA-Malawi Chitedze Research Station P.O. Box 30258, Lilongwe 3, Malawi
Asian Journal of Agricultural Sciences 2013 1:1-5
Received: June 02, 2012 | Accepted: June 29, 2012 | Published: January 25, 2013
Abstract
This experiment was conducted at Debre Zeit and Akaki during 2004-2005 cropping season on F2- derived F4 bulk families of 3 crosses, viz, DZ-01-974 x DZ-01-2786, DZ-01-974 x DZ-Cr-37 and Alba x Kaye Murri. To estimate the correlations and path coefficients between yield and yield components, 63 F4 families were taken randomly from each of the 3 crosses. The 189 F4 families, five parents and 2 checks were space planted following in 14×14 simple lattice design. Study of associations among traits indicated that yield was positively associated with shoot biomass, harvest index, lodging index and panicle kernel weight at phenotypic level at Debre Zeit. At Akaki, yield had significant positive correlation with shoot biomass, harvest index, plant height and panicle length and panicle weight. At genotypic level, grain yield per plot exhibited positive association with harvest index, shoot biomass, lodging index and panicle kernel weight at Debre Zeit. By contrast, days to heading, days to maturity, plant height and panicle length showed negative association with yield. At Akaki, kernel yield per plot was positively correlated at genotypic level with all the traits considered where lodging index had the highest correlation followed by shoot biomass, panicle kernel weight and harvest index. Path coefficient analysis at both phenotypic and genotypic levels for both the locations suggested those shoot biomass and harvest indexes are the two important yield determining traits. These two traits might be useful in indirect selection for yield improvement in the material generated from the three crosses under consideration.
Keywords:
Correlation, path coefficient analysis, tef (Eragrostis tef),
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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