eprintid: 11587
rev_number: 9
eprint_status: archive
userid: 3170
dir: disk0/00/01/15/87
datestamp: 2020-09-04 16:58:27
lastmod: 2020-09-04 16:58:27
status_changed: 2020-09-04 16:58:27
type: article
metadata_visibility: show
creators_name: Afolayan, G
creators_name: Aladele, S E
creators_name: Deshpande, S P
creators_name: Kolawole, A P
creators_name: Nwosu, D J
creators_name: Michael, C
creators_name: Blay, E T
creators_name: Danquah, E Y
icrisatcreators_name: Deshpande, S P
affiliation: National Center for Genetic Resources and Biotechnology (NACGRAB), Nigeria
affiliation: West African Center for Crop Improvement, University of Ghana, Legon, Ghana
affiliation: ICRISAT (Patancheru)
affiliation: Ladoke Akintola University of Technology, Ogbomoso (LAUTECH), Nigeria
country: Nigeria
country: Ghana
country: India
title: Genetic Variation for Striga hermonthica Resistance and Yield Among Sorghum Accessions in Nigeria
ispublished: pub
subjects: s1.4
subjects: s2.13
subjects: s35
divisions: CRPS3
crps: CG1
full_text_status: public
keywords: Sorghum, Weed, Plant Disease, Breeding, Genetics, Genomics
note: This work has been undertaken as part of a Ph.D. research funded by the Alliance for Green Revolution in Africa
(AGRA) through the West African Centre for Crop Improvement (WACCI). Also as part of CGIAR Research
Program (CRP) on Grain Legumes and Dryland Cereals. The authors would like to thank the West African
Centre for Crop Improvement (WACCI) for excellent supervision. Also technical and advisory support from the
CGIAR Research Program (CRP) on Grain Legumes and Dryland Cereals is highly appreciated. The provision
of Sorghum germplasm by the National Center for Genetic Resources and Biotechnology (NACGRAB), Institute
for Agricultural Research (IAR) Nigeria and International Crop Research Institute for Semi-Arid Tropics
(ICRISAT) Mali and Kenya, is gratefully acknowledged.
abstract: Striga hermonthica (Delile) Benth., commonly referred to as witch weed, is a major constraint to sorghum
(Sorghum bicolor (L.) Moench) production in the Northern region of Nigeria because of high yield losses due to
infestation. To identify parental lines useful in breeding for S. hermonthica resistant sorghum genotypes adapted
to Nigeria, twenty-five sorghum accessions were evaluated in Nigeria across three test environments. Both
phenotypic and genetic components influenced the variation observed in the sorghum accessions. The estimates
for the genetic coefficient of variation, heritability and genetic advance for the area under Striga number
progress curve (ASUNPC), Striga emergence counts, yield and other agronomic traits, obtained in this study
revealed that genetic gain for resistance to S. hermonthica could be realized through selection. Based on the
performance of the 25 sorghum accessions SRN39, Danyana, Sepon82, and SAMSORG40 were the top four
accessions found to be most resistant to S. hermonthica. Assessment of resistance was based on the low Striga
emergence counts and the ASUNPC values. These accessions can be used as donor sources of S. hermonthica
resistant genes for introgression into cultivars adapted to Nigeria, followed by recombination breeding for
pyramiding the different resistance mechanisms.
date: 2020-06
date_type: published
publication: Journal of Agricultural Science
volume: 12
number: 7
publisher: Canadian Center of Science and Education (CCSE)
pagerange: 192-202
id_number: doi:10.5539/jas.v12n7p192
refereed: TRUE
issn: 1916-9752
official_url: https://doi.org/10.5539/jas.v12n7p192
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.5539%2Fjas.v12n7p192&btnG=
related_url_type: pub
citation:   Afolayan, G and Aladele, S E and Deshpande, S P and Kolawole, A P and Nwosu, D J and Michael, C and Blay, E T and Danquah, E Y  (2020) Genetic Variation for Striga hermonthica Resistance and Yield Among Sorghum Accessions in Nigeria.  Journal of Agricultural Science, 12 (7).  pp. 192-202.  ISSN 1916-9752     
document_url: http://oar.icrisat.org/11587/1/Genetic-Variation-for-Striga-hermonthica.pdf