Geographic distribution of variation in quantitative traits in a world lentil collection
- 132 Downloads
In a world lentil collection the distribution of variation amongst accessions from 13 major lentil-producing countries was examined on the basis of nine quantitative morphological characters by discriminant analysis and canonical analysis. Stepwise discriminant analysis revealed major differences between accessions from different countries. Three major regional groups were apparent: 1) a levantine group (Egypt, Jordan, Lebanon and Syria, 2) a more northern group composed of Greece, Iran, Turkey, and USSR, and 3) accessions from India and Ethiopia with strikingly similar quantitative morphological characters. Misclassifications of individuals within groups were frequent. Characters useful in discriminating between accessions from different countries were in descending order of importance: time to maturity, lowest pod height and 100-seed weight. The regional grouping indicates the importance of local adaptation through clusters of associated characters with phenological adaptation to the ecological environment as the major evolutionary force in the species.
Key wordsLens culinaris lentil variation germplasm geographical distribution
Unable to display preview. Download preview PDF.
- Afifi A.A. & V. Clark, 1984. Computer-aided multivariate analysis. Lifetime Learning Publications, Belmont, California, U.S.A.Google Scholar
- Barulina, H. 1930. Lentils of the USSR and other countries. Supplement 40 to the Bulletin of Applied Botany, Genetics and Plant Breeding, Leningrad, 265–304. (English Summary).Google Scholar
- Damania, A.B. & E. Porceddu, 1983. Variation in landraces of Turgidum and bread wheats and sampling strategies for collecting wheat genetic resources. In: Proceedings of 6th International Wheat Genetics Symposium, Kyoto, Japan. Pages 123–136.Google Scholar
- Erskine W. & J.R. Witcombe, 1984. Lentil Germplasm Catalog. International Center for Agricultural Research in the Dry Areas (ICARDA), P.O. Box 5466, Aleppo, Syria.Google Scholar
- Frankel, O.H. & A.H.D. Brown, 1984. Plant genetic resources today: a critical appraisal. In: J.H.W. Holden & J.T. Williams (Eds). Crop Genetic Resources: conservation and evaluation. George Allen and Unwin. 249–257.Google Scholar
- Jennich R. & P. Sampson, 1985. Stepwise Discriminant Analysis. In: W.J. Dixon (Ed.). BMDP Statistical Software Manual. University of California Press, London, U.K. 519–537.Google Scholar
- Phillips M.S. & W. Powell, 1984. The effect of natural selection selection on composite cross populations of oats (Avena sativa) grown at contrasting sites in Scotland. Journal of Agricultural Science, Cambridge 102: 469–473.Google Scholar
- Riggs T.J., 1973. Studies in barley breeding. Ph.D. thesis, University of Edinburgh, U.K.Google Scholar
- Seal H.L., 1964. Multivariate Statistical Analysis for Biologists. Methuen, London, U.K.Google Scholar
- Spagnoletti Zeuli P.L. & C.O. Qualset, 1987. Geographical diversity for quantitative spike characters in a world collection of durum wheat. Crop Science 27: 235–241.Google Scholar