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Pak. J. Bot., 47(3): 1061-1067, 2015. |
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Updated: 23-06-15 | ||||
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GENETIC DIVERSITY ASSESSMENT OF INDIGENOUS RICE GERMPLASM FROM NORTHERN PAKISTAN USING AGRO MORPHOMETRIC TRAITS
AYESHA BIBI1, FIDA MUHAMMAD ABBASI1, M. ASHIQ RABBANI2 AND KHATIBA BIBI1
Abstract: The, study aims to ascertain the extent of genetic variability among the Oryza sativa germplasm using agro-morphological characters. The germplasm assayed comprised of 116 accessions acquired from Northern Areas of Pakistan. All the genotypes were characterized for 19 agro-morphological traits. The data were analyzed by cluster analysis and principal component analyses. A significant level of variability was noticed for a number of agro-morphological traits. The largest variation was observed in seed yield per plant, (588.32), sterile culms per plant (341.25) and flag leaf length (291.09). The 116 accessions in this study were grouped into seven clusters based on hierarchical clustering method. PCI which is most important explained 28.41%, PCII contributed 13.38%, PCIII accounted for 11.69% of total morphological variability On the basis of greater, seed yield per plant, 1000-seed weight, early maturity, lowest no of sterile culms, highest no of panicle per plant, three promising genotypes 7821,7814,7593 can be used for general cultivation under Islamabad conditions. Genotypes 7757, 7837, could be evaluated further to be used in future breeding programs.
Key words: Genetic diversity, Principal component analysis, Cluster analysis, Rice accessions.
1Department of Genetics Hazara University, Dhodial Mansehra 2Plants, Genetic, Resources Institute (PGRI) NARC, Islamabad, Pakistan *Corresponding author’s e-mail: ayeshabb2009@yahoo.com |
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