eprintid: 5103
rev_number: 11
eprint_status: archive
userid: 14
dir: disk0/00/00/51/03
datestamp: 2011-12-28 03:48:29
lastmod: 2011-12-28 03:48:29
status_changed: 2011-12-28 03:48:29
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
creators_name: Ezeaku, I E
creators_name: Gupta, S C
creators_name: Prabhakar, V R
icrisatcreators_name: Ezeaku, I E
icrisatcreators_name: Gupta, S C
icrisatcreators_name: Prabhakar, V R
affiliation: ICRISAT(Kano)
country: Nigeria
title: Classification Of Sorghum Germplasm Accessions Using Multivariate Methods
ispublished: pub
subjects: s1.4
full_text_status: public
keywords: Genetic diversity, Mahalanobis D2, ICRISAT, Nigeria, Sorghum bicolor 

note: The authors are grateful to Dr. R. Tabo for collecting germplasm from Chad, and to Messrs Yusuf Ali (LCRI) and S. E. Aladele for collecting germplasm from Nigeria. We are also grateful to Drs. Subhash Chandra and O. Ajayi for reviewing this manuscript
abstract: Two multivariate methods were used to classify 352 accessions of sorghum (Sorghum bicolor (L.) Moench) originating from Nigeria and Chad. The study revealed the existence of a considerable range of variability within the cultivated sorghums for 13 traits studied. Days to flowering represented 64.8% of the total variation observed within the 352 accessions. Based on flowering, three groups were formed consisting of early, medium and late flowering accessions. Eight clusters were formed in each flowering group following Mahalanobis D2 analysis. The accession numbers in each cluster are listed for possible seed requests from sorghum breeders. Principal components analysis indicated that plant height, panicle length and floaters (%) contributed most towards genetic divergence among the accessions studied. Clustering pattern revealed that geographic diversity, though important, is not the only factor responsible for determining genetic divergence. The implications of this study to sorghum breeding are summarised. 

date: 1999
date_type: published
publication: African Crop Science Journal
volume: 7
number: 1
publisher: African Crop Science Society
pagerange: 97-108
refereed: TRUE
issn: 2072-6589
official_url: http://ec2-50-19-248-237.compute-1.amazonaws.com/5103/1/AfrCropSci7(1)97-108.mht
related_url_url: http://scholar.google.co.in/scholar?as_q=Classification+Of+Sorghum+Germplasm+Accessions+Using+Multivariate+Methods&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as_sdt=1.&as_sdtp=on&as_sdtf=&as
related_url_type: author
citation:   Ezeaku, I E and Gupta, S C and Prabhakar, V R  (1999) Classification Of Sorghum Germplasm Accessions Using Multivariate Methods.  African Crop Science Journal, 7 (1).  pp. 97-108.  ISSN 2072-6589     
document_url: http://oar.icrisat.org/5103/1/AfricanCropScienceJournal7_1_97-108_1999.pdf