Indian Society of Genetics & Plant Breeding

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Analysis of diversity among cytoplasmic male sterile sources and their utilization in developing F1 hybrids in Pearl millet [Pennisetum glaucum (R.) Br]

Published on Aug 16, 2018 02:48 PM

The present study aims at analysis of diversity among
parental lines of different cytoplasmic sources and their
utilization in developing F1 hybrids. Seven male sterile
cytoplasmic lines belonging to A1 – 3; A4 – 2 and A5 – 2
were crossed with three elite restorers. The cluster analysis
done with molecular data obtained from genomic DNA
using SSR markers grouped the parental lines belonging
to A1 cytoplasm into one cluster, A4 into one and A5 into
the other. The assessment of the performance of the F1
hybrids was done through standard heterosis,
heterobeltiosis and economic heterosis. The study clearly
indicated that all the seven cytoplasmic male sterile lines
coming from different cytoplasmic sources are capable
of producing new superior hybrids. Physiological
characters like chlorophyll, relative carotenoids and root
length density have also been studied to assess the
performance of parents and F1 hybrids. Higher economic
heterosis was observed for yield in A1 cytoplasm
compared to A4 and A5 cytoplasms. Desirable effects of
earliness and maturity can be obtained using A4cytoplasm
while desirable heterosis could be obtained for plant
height, spike girth, number of nodes, chlorophyll content,
relative carotenoids and 1000 grain weight from A5
cytoplasm.
 

Keywords: Pearl millet, cytoplasmic male sterility, diversity, SSR, heterosis

Info

Year: 2009
Volume: 69
Issue: 4
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

C. Tara Satyavathi, Sakkira Begum, B. B. Singh, K. V. Unnikrishnan and C. Bharadwaj info_circle
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