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Genetic Diversity Analysis among Inbred Lines of Pearl millet [Pennisetum glaucum (L.) R. Br.] Based on Grain Yield and Yield Component Characters

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Relation http://oar.icrisat.org/10126/
http://dx.doi.org/10.20546/ijcmas.2017.606.266
10.20546/ijcmas.2017.606.266
 
Title Genetic Diversity Analysis among Inbred Lines of Pearl millet [Pennisetum glaucum (L.) R. Br.] Based on Grain Yield and Yield Component Characters
 
Creator Ramya, A R
Ahamed, M L
Srivastava, R K
 
Subject Pearl Millet
Crop Yield
Genetics and Genomics
 
Description An experiment was conducted to assess genetic divergence among 60 inbred lines included
27 maintainer (B-) and 33 restorer (R-) lines of pearl millet based on quantitative data of
grain yield and its ten component traits using hierarchical cluster and principal component
analysis (PCA). The PCA identified four principal components (PCs) with Eigen value
greater than 1.00 and accounted for 70.97 per cent of total variation. Most important traits
in PC1 are days to 50 per cent flowering, plant height, ear length, ear diameter, grain yield
per plant, fresh stover yield per plant, dry matter yield per plant and grain harvest index
and captured 26.85 per cent of total variation. PC2 was represented by ear diameter and
dry matter yield per plant and contributed 18.06% of total variation. Two characters, grain
yield per plant and grain harvest index contributed positively on all the first four PCs.
Cluster analysis grouped the inbred lines into eight clusters and the characters, plant
height, 1000 grain weight, dry matter yield per plant and productive tillers per plant
contributed maximum towards genetic divergence. The grouping patterns of parental lines
in PCA and cluster analysis were almost in agreement with each other with minor
deviations. The study noticed maximum inter cluster distance between lines of cluster I
and II with cluster VII, indicating that lines included in these clusters may have high
heterotic response and produce better seggregants when used in Pearl millet hybridization
programme.
 
Publisher IJCMAS
 
Date 2017
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10126/1/A.%20Radhika%20Ramya%2C%20et%20al.pdf
Ramya, A R and Ahamed, M L and Srivastava, R K (2017) Genetic Diversity Analysis among Inbred Lines of Pearl millet [Pennisetum glaucum (L.) R. Br.] Based on Grain Yield and Yield Component Characters. International Journal of Current Microbiology and Applied Sciences, 6 (6). pp. 2240-2250. ISSN 23197692