Reddy, V.R. and Jabeen, F. and Sudarshan, M.R. (2013) Genetic divergence in maize (Zea mays L.). Progressive Agriculture, 13 (1). pp. 14-18.
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Abstract
The genetic divergence among 50 genotypes of maize was estimated by using Mahalanobis D2 statistic for 11 characters. The genotypes were grouped into eight clusters. Cluster III was the largest with 20 genotypes followed by cluster I (12 genotypes), cluster II (8 genotypes), cluster IV (4 genotypes), cluster VIII (3 genotypes) and cluster V, VI and VII containing one genotype each. The inter-cluster distances were larger than the intra-cluster distances suggesting wider genetic diversity among the genotypes of different groups. The highest inter-cluster distance was observed between clusters II and VI followed by clusters II and V, clusters II and VII, clusters I and VI, clusters I and VII and clusters IV and VI suggesting more variability in genetic make up of the genotypes included in these clusters. The highest intra-cluster distance was noticed in cluster VIII and lowest in clusters V, VI and VII. The clusters V, VI and VII contained only one genotype and hence, its intra-cluster distance was zero. The cluster VII had highest mean value for grain yield per plant followed by clusters VI and V. Based on the inter-cluster distances genotypes present in clusters I, II, IV, V, VI and VII can be used as parents for hybridization programme to develop potential hybrids
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Genetic diversity, D2 statistics, maize |
| Author Affiliation: | Department of Genetics and Plant Breeding, College of Agriculture, Rajendranagar, Hyderabad - 500 030 (A. P.), India |
| Subjects: | Crop Improvement |
| Divisions: | Maize |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 24 Feb 2014 06:45 |
| Last Modified: | 24 Feb 2014 06:45 |
| Official URL: | http://www.indianjournals.com/ijor.aspx?target=ijo... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/12695 |
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