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Assessment of genetic diversity in a large representative collection of Finger millet (Eleusine Coracana (L.) Gaertn) from India and Africa

Shodhganga@INFLIBNET

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Title Assessment of genetic diversity in a large representative collection of Finger millet (Eleusine Coracana (L.) Gaertn) from India and Africa
 
Contributor Jayashree M K
 
Subject Agricultural Sciences
Plant Breeding
Genetic diversity
Eleusine Coracana
 
Description Finger millet (Eleusine coracana (L.) Gaertn) is one of the most important grain and feed crops grown in India; and finger millet breeders are constantly looking for
newlinepotential and useful germplasm for deployment in crop improvement programme. The importance of using exotic germplasm especially from Africa and the benefits accruing there upon has been well recognized. This has lead to initiation of many systematic studies aimed at comparing diversity in Indian and African collection of finger millet from the point of locating useful gene sources. The present study is one such effort where a large representative collection of 289 accessions originating from Africa and India were evaluated for their utility in crop
newlineimprovement by assessing genetic diversity. They were grown in 17 x 17 simple lattice
newlinedesign with two replications. Data collected from 25 qualitative and quantitative
newlinecharacters were used for assessing the magnitude of variability present in Indian and African germplasm employing different statistical tools. The study revealed the presence of large diversity in both African and Indian germplasm suggesting that both groups of germplasm are equally important in crop improvement activities. However, it was of interest to note that the nature of variability was different in both groups making each group unique in their own way. African accessions were more variable than Indian accession especially for ear
newlinecharacteristics. Further, the level of resistance to blast disease was much higher in African collection compared to Indian germplasm. The diversity assessment using
newlineMahalonobis D2 statistic also further substantiated the presence of greater diversity in African accessions than Indian accessions. The study has helped in locating many accessions having utility in crop improvement. The availability of significant amount of variability in both groups of material for several yield and yield contributing characters suggests that germplasm of both regions are required in crop improvement.
Summary p. 177-182, References p. 183-200, Appendix p. 201-223
 
Date 2013-01-08T09:00:23Z
2013-01-08T09:00:23Z
2013-01-08
n.d.
July, 2012
2012
 
Type Ph.D.
 
Identifier http://hdl.handle.net/10603/6150
 
Language English US
 
Relation --
 
Rights university
 
Format 223p.
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None
 
Coverage Agricultural Sciences
 
Publisher Bangalore
University of Agricultural Sciences, Bangalore
Department of Genetics and Plant Breeding
 
Source INFLIBNET