Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2013.1330.1335Triticum aestivum L.) Genotypes]]>DegewioneA. AlamerewS. 1220131621Wheat is one most important cereal crops grown in Ethiopia.
Yet, keeping in view insufficient information on exotic bread wheat genotypes
is limiting the access to useful traits present among the genotypes in the Somali
region of Ethiopia. The aim of the study was to assess the extent of genetic
diversity among bread wheat genotypes. Twenty six bread wheat (Triticum aestivum
L.) genotypes obtained from ICARDA-CIMMYT were tested at Gode and Kelafo research
sites at three cropping seasons (2009/10, 2010/11 and 2011/12) under irrigation.
The experiment was conducted in randomized complete block design with three
replications. Ten agronomic traits were included in the study. The mean values,
ranges and the coefficient of variation of the 10 characters indicated the existence
of sufficient variability among genotypes. Multivariate techniques were used
to classify 26 bread wheat genotypes. Principal component analysis showed that
the first six principal components explained about 91.87% of the total variation.
D2 analysis showed the 26 bread wheat genotypes grouped into six
clusters. This made to become moderate diversity among the genotypes. The crosses
between genotypes selected from cluster-III with cluster-VI and cluster V with
cluster VI are expected to produce better genetic recombination and segregation
in their progenies. Therefore, these bread wheat genotypes need to be crossed
and selected to develop high yielding pure line variety.]]>Abdi, A., E. Abdurahman and M. Muhyadin,20092009Badel, M.,20122012Chahal, G.S. and S.S. Gosal,2002Pages: 604Pages: 604Crossa, J., I.H. Delacy and S. Taba,19951995pp: 77-92pp: 77-92CSA,20112011Gebre-Mariam, H.,19911991Mahalanobis, P.C.,193624955Maqbool, R., M. Sajjad, I. Khaliq, Aziz-ur-Rehman, A.S. Khan and S.H. Khan,2010Triticum aestivum L.).]]>8216224Noorka, I.R. and I. Khaliq,2007Triticum aestivum L.) germplasm for drought tolerance.]]>3915391546Sajjad, M., S.H. Khan and A.S. Khan,2011Triticum aestivum).]]>13695700SAS,2008Version 8.2,Sharma, J.R.,1998Pages: 448Pages: 448Singh, R.K. and B.D. Chaudhary,1999Pages: 318Pages: 318Ayale, G.M., 20052005