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Genetic diversity for yield and its component traits in pearlmillet [Pennisetum glaucum (L.) R. Br.]

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Relation http://oar.icrisat.org/10395/
 
Title Genetic diversity for yield and its component traits in pearlmillet [Pennisetum glaucum (L.) R. Br.]
 
Creator Athoni, B K
Boodi, I
Pattanashetti, S K
Guggari, A K
 
Subject Pearl Millet
Genetics and Genomics
 
Description Pearlmillet is an important cereal crop of the semi arid-tropical region. As a result the crop productivity is challenged in
most cultivable regions. In order to enhance the productivity in dry regions, breeders need access to diverse material in
their breeding programmes. In the present study, an attempt was made to assess the genetic divergence among the 243
germplasm lines using Mahalanobis D² statistic. Based on the genetic distance (D2 value), the 243 genotypes were grouped
into 16 different clusters indicating diverse nature of material studied. Cluster I was the largest with 129 genotypes
followed by cluster III (49 genotypes) and cluster V (24 genotypes) while clusters II and VI, VII, VIII and X to XVI were
solitary indicating the grouping of exotic collections in definite groups. Among the various characters, seed yield
(27.45%), panicle girth (18.16 %), leaf length (12.20 %) contributed maximum towards the divergence. Cluster IX (9
genotypes) showed the maximum mean value for seed yield. The intra and inter cluster divergence among the genotypes
were varying in magnitude. The intra-cluster distance was maximum in cluster IX followed by clusters IV and V. The
widest inter cluster distance was noted between cluster V and XVI giving scope for hybridization programme for
improvement of Pearl millet genotypes. The distance between clusters II and V was minimal indicating close relationship
between those clusters.
 
Publisher Society For Science and Nature (SFSN)
 
Date 2016
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10395/1/GENETIC%20DIVERSITY%20FOR%20YIELD.pdf
Athoni, B K and Boodi, I and Pattanashetti, S K and Guggari, A K (2016) Genetic diversity for yield and its component traits in pearlmillet [Pennisetum glaucum (L.) R. Br.]. International Journal of Science and Nature, 7 (4). pp. 795-798. ISSN 2229-6441