PJB-2010-276
STUDY OF GENETIC DIVERSITY IN SOME LOCAL AND EXOTIC LENTIL (LENS CULINARIS MEDIK) GENOTYPES
MUHAMMAD JAWAD ASGHAR1*, GHULAM ABBAS2, TARIQ MAHMUD SHAH2 AND BABAR MANZOOR ATTA1
Abstract
Genetic diversity was studied in 30 lentil genotypes (including 15 hybrids, 8 mutants and 7 exotic accessions) originating from Pakistan, Argentina and ICARDA (Syria) by using Metroglyph analysis. The objectives were to classify the lentil germplasm into distinct groups and to identify the most desirable genotype(s) for hybridization programme for the evolution of high yielding varieties. A desirability index was constructed to assess the worth of a particular genotype for different traits. Metroglyph analysis distributed the genotypes into 10 distinct groups. Maximum mean index score was observed for group-V followed by group-VI and group-VII. Mean index score of exotic accessions (14.3) was found greater than those of hybrids (13.9) and mutants (13.8). Genotypes like TCL 85-1, ILL 6821, Precoz and Masoor 93 were found to be the desirable genotypes. TCL 85-1 appeared as most prominent one with a high desirability index and maximum index score (17) followed by an exotic accession, viz., Precoz (15). Metroglyph technique was found useful in identifying groups of genotypes with yield enhancing traits and in the selection of superior genotypes.
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