VALBONA HOBDARI1*, BELUL GIXHARI1, FEHMI GECI2, ARBEN OSMANAJ2, VITORE SHALA-MAYROFER3, FETAH ELEZI1
1Institute of Plant Genetic Resources, Agricultural University of Tirana, Tirana, Albania
2Institute of Agricultural in Peja, Kosovo
3Austrian Chamber of Agriculture, Vienna
*Corresponding author e-mail: firstname.lastname@example.org; email@example.com
Study for characterization of genetic diversity presented in the 100-bread wheat (T. aestivum) genotypes of local origin, stored in Albanian genebank, using 12 quantitative traits (6 morphological traits and 6 biochemical markers) was carried out. The study was realized in the Experimental Field of Agriculture Institute of Peja (Kosovo) during the 2015-2016 seasons. Variance analysis, cluster on correlation and principal component analysis reveal presence of significant variability between and the association among quantitative traits. Principal component analysis and cluster analysis on correlations divide the whole wheat genotypes into five cluster groups in respect of genetic diversity and similarity among bread wheat accessions. Higher number of the wheat accessions was included into the first cluster group (45 genotypes) and into the fourth cluster group (26 genotypes). Highly significant positive correlations were found between days to flower, plant height, spikelet time, and protein content and gluten traits (coefficient of correlation range from 0.308 to 0.958). Relationships analysis between the quantitative traits and wheat genotypes using principal component analysis show that there are six traits with larger values in PC1 that account for 40.86% of total variance. The study identifies traits with agronomic interest that account for genetic diversity and which will facilitate the maintenance and agronomic evaluation of the wheat collections.
Keywords: genetic diversity; wheat genotypes; quantitative traits.