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Phenotypic diversity for qualitative and phenologic characters in germplasm collections of tef (Eragrostis tef)

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Abstract

A total of 3600 entries of tef [Eragrostis tef (Zucc.) Trotter] germplasm collections representing 36 populations from six regions of Ethiopia were evaluated for phenotypic diversity in six qualitative and phenologic characters. High values of Shannon–Weaver diversity index (\({H'}\)) were recorded for most characters in each population. Monomorphism was high for anther color (purple) and panicle form (loose). Larger variances for \({H'}\) were obtained among regions than among populations within a region from hierarchical analysis of variance. Significant (P<0.05) to highly significant (P<0.01) t-values were observed among \({H'}\) values of some regions for seed color, panicle form and days to maturity. A substantial level of variance (P<0.05) was obtained for populations within altitudinal zones only for days to maturity. Altitudinal zones exhibited similar levels of diversity across characters for these collections. Generally, considerable variations important for tef improvement work have been observed and regions with highest diversity for some traits have been suggested for future in situ or ex situ germplasm conservation works. Although similar mean diversity indices were obtained among regions, they were non overlapping.

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References

  • Bechere, E., G. Belay, D. Mitiku & A. Merker, 1996. Phenotypic diversity of tetraploid wheat landraces from northern and northcentral regions of Ethiopia. Hereditas 124: 165–172.

    Google Scholar 

  • Bekele, F. & I. Bekele, 1996. A sampling of the phenetic diversity of cacao in the International Cacao Gene Bank of Trinidad. Crop Sci. 36: 57–64.

    Google Scholar 

  • Bekele E., R.J. Fido, A.S. Tatham & P.R. Shewry, 1995. Heterogeneity and polymorphism of seed proteins in tef. Hereditas 122: 67–72.

    Google Scholar 

  • Central Statistical Authority, 1997. Agricultural Sample Survey, report on area, production and yield of major crops (private holdings, meher season). The FDRE Statistical Bulletin 152, Vol. 1. Addis Ababa, Ethiopia.

    Google Scholar 

  • Demissie, A. & A. Bjornstad, 1996. Phenotypic diversity of Ethiopian barleys in relation to geographic regions, altitudinal range, and agro-ecological zones: as an aid to germplasm collection and conservation strategy. Hereditas 124: 17–29.

    Google Scholar 

  • Ebba T., 1975. Tef (Eragrostis tef) cultivars. Morphology and Classification. Part II. Agric. Expt. Sta. Bull. No. 66, Addis Ababa University, College of Agriculture. Dire Dawa, Ethiopia.

    Google Scholar 

  • Hennink, S. & A.C. Zeven, 1991. The interpretation of Nei and Shannon-Weaver within population variation indices. Euphytica 51: 235–240.

    Google Scholar 

  • Jain, S.K., C.O. Qualset, G.M. Bhatt & K.K. Wu, 1975. Geographical patterns of phenotypic diversity in a world collection of durum wheats. Crop Sci. 15: 700–704.

    Google Scholar 

  • Ketema, S., 1993. Tef (Eragrostis tef): breeding, genetic resources, agronomy, utilisation and role in Ethiopian agriculture. Institute of Agricultural Research, Addis Abeba, Ethiopia.

    Google Scholar 

  • Ketema, S., 1997. Tef. Eragrostis tef (Zucc.) Trotter. Promoting the conservation and use of underutilised and neglected crops. 12. Institute of Plant Genetics and Crop Plant Research, Gatersleben (International Plant Genetic Resources Institute), Rome, Italy.

    Google Scholar 

  • Tadesse, D., 1993. Study on genetic variation of landraces of teff [Eragrostis tef (Zucc.)Trotter] in Ethiopia. Genet. Resour. Crop Evol. 40: 101–104.

    Google Scholar 

  • Tefera, T., S. Ketema & T. Tessema, 1990. Variability, heritability, and genetic advance in tef [Eragrostis tef (Zucc.) Trotter] cultivars. Trop. Agric. 67: 317–320.

    Google Scholar 

  • Vavilov, N.I., 1951. The origin, variation, immunity and breeding of cultivated plants. Translated from Russian by Starrchester, Ronald Press, New York, NY, pp. 37–38.

    Google Scholar 

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Authors and Affiliations

  1. Debre Zeit Agricultural Research Centre, P.O.Box 32, Debre Zeit, Ethiopia

    Tiruneh Kefyalew & Hailu Tefera

  2. Department of Plant Breeding Research, Swedish University of Agricultural Sciences, Herman Ehles, Vag 2-4, 268 31, Svalov, Sweden

    Kebebew Assefa

  3. Department of Plant and Soil Sciences, Texas Tech University, Lubbock, TX, 79409-2122, U.S.A.

    Mulu Ayele

Authors
  1. Tiruneh Kefyalew
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  2. Hailu Tefera
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  3. Kebebew Assefa
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  4. Mulu Ayele
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Kefyalew, T., Tefera, H., Assefa, K. et al. Phenotypic diversity for qualitative and phenologic characters in germplasm collections of tef (Eragrostis tef). Genetic Resources and Crop Evolution 47, 73–80 (2000). https://doi.org/10.1023/A:1008781022038

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  • DOI: https://doi.org/10.1023/A:1008781022038

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