Correlation and Divergence Analysis for Phenotypic Traits in Sesame (Sesamum indicum L.) Genotypes
Journal Title: STAR Journal - Year 2014, Vol 3, Issue 4
Abstract
A study was conducted to determine the magnitude of associations of traits and genetic divergence among the 64 sesame genotypes. The genotypes were arranged in 8 x 8 simple lattice design and grown in Arjo district, Western Ethiopia during 2013 cropping season. Data were recorded for 12 phenotypic traits and analyzed using SAS software version 9.20 (2002, USA). The results showed that seed yield had positive and significant genotypic and phenotypic correlations with all traits, indicating they are important yield components and can be used for yield improvement in sesame breeding program except for PH and BY. Further analysis by path coefficient method indicated that at genotypic level DM, CFP and HI exerted high positive direct effects on seed yield and strong and positive correlation with seed yield. Similarly, at phenotypic level positive and high direct effects were exerted by CFP, NPB and HI on seed yield and these traits had also strong positive associations with SY. Genetic distance analysis showed that the 64 sesame genotypes were grouped in to 4 clusters and maximum inter cluster square distance (D2) was recorded between cluster I and II followed by cluster I and III. Hence crossing involving cluster I with II and cluster I and III may exhibit high heterotic values and could give transgressive segregants. The principal component analysis revealed that four principal components explained about 66% of the total variation existed among the genotypes. The dominant seed color observed was brown followed by white in the genotypes. The study generally indicated that there was significance genetic variability or divergence among the genotypes. Thus, there is enormous opportunity to use the existing genotypes for direct selection as well as using distant parents for crossing purposes to improve specific traits.
Authors and Affiliations
Gadisa Hika| Arjo Preparatory school, P.O. Box: 10, Arjo, East Wollega, Ethiopia, Negash Geleta| Department of Plant Sciences, College of Agriculture and Natural Resources, Wollega University, P.O. Box: 395, Nekemte, Ethiopia, Zerihun Jaleta| Department of Plant Sciences, College of Agriculture and Natural Resources, Wollega University, P.O. Box: 395, Nekemte, Ethiopia
Keywords
Related Articles
- EP ID EP9707
- DOI http://dx.doi.org/10.4314/star.v3i4.1
- Views 383
- Downloads 16
Characterization and Phase Transitions of Bi Doped BaTiO3 Ceramics Prepared through Chemical Route
Nano particulate Barium Bismuth Titanate (BaBixTi1-xO3-δ) materials (with x=0.05, 0.1 and 0.15) were prepared through sol-gel chemical route (Pichini method) and the XRD patterns were indexed on the basis of tetragona...
Remote Sensing GIS Based Spatio-temporal Land Use/ Cover Study of Western Ethiopian Highlands –A Case of Jima Arjo District
This paper was aimed at studying the spatio-temporal dynamics of land use/cover western Ethiopian highlands in the period 1973 to 2006 years (for 33 years) and its future trend. In order to analyze the status of dynamics...
Study of Production Practices, and Productivity of Village Chicken in Chelliya District, Ethiopia
No Abstract
On-Farm Diversity and Genetic Erosion of Tetraploid Wheat Landraces in Ambo and Dandi Districts, West Shewa, Ethiopia
The aim of the study was to document wheat landraces that were and still grown in Ambo and Dandi districts, West Shewa, Ethiopia; and to investigate the extent of genetic loss and its causes. Survey was carried out in th...
Field Management of Anthracnose (Colletotrichum lindemuthianum) in Common Bean through Foliar Spray Fungicides and Seed Treatment Bioagents
Common bean anthracnose is a major production constraint in bean growing regions of Ethiopia. This study aimed to determine whether foliar sprays of mancozeb, folpan and mancolaxyl or antagonistic bioagents; Trichoderm...