DefinePK

Abstract

The present study was carried out to characterize indigenous rice accessions on the basis of twenty-four qualitative and fourteen quantitative traits at the agriculture research area of Plant Breeding and Genetics, The University of Agriculture, Peshawar. Most of the morphological characters showed variation in different accessions except leaf sheath, internode color, ligule shape and auricle color. A significant amount of variation was displayed for most of the quantitative traits examined i.e, culm length, peduncle length, flag leaf length, panicle length, secondary branches penicle-1 and spikelets penicle-1 whereas for other traits, relatively less variation was observed. On the basis of cluster analysis for qualitative traits, four clusters were identified at a dissimilarity level of 2.31. In cluster analysis or quantitative traits, three clusters were observed at dissimilarity level of 5.36. Five accessions exhibited superiority among all accession potential for most of traits and its genetic potential can exploited in future rice breeding programs.
Keywords: Rice germplasm; Genotypic coefficient of variation; Dissimilarity index; Agromorphological variation; Dendrogram
http://dx.doi.org/10.19045/bspab.2016.50050