Laboratory screening of cowpea (Vigna unguiculata) genotypes against pulse beetle, Callosobruchus maculatus (F.)

Aaron Chimbelya Siyunda, Natasha Mwila, Mick Mwala, Kalaluka Munyinda, Kelvin Kamfwa, Gilson Chipabika and Dyness Nshimbi
Additional contact information
Aaron Chimbelya Siyunda: Department of Crop Science, Natural Resources Development College (NRDC), Lusaka, Zambia.
Natasha Mwila: Department of Plant Science, School of Agricultural Science, University of Zambia (UNZA), Lusaka, Zambia.
Mick Mwala: Department of Plant Science, School of Agricultural Science, University of Zambia (UNZA), Lusaka, Zambia.
Kalaluka Munyinda: Department of Plant Science, School of Agricultural Science, University of Zambia (UNZA), Lusaka, Zambia.
Kelvin Kamfwa: Department of Plant Science, School of Agricultural Science, University of Zambia (UNZA), Lusaka, Zambia.
Gilson Chipabika: Department of Plant Science, School of Agricultural Science, University of Zambia (UNZA), Lusaka, Zambia.
Dyness Nshimbi: Department of Crop Science, Natural Resources Development College (NRDC), Lusaka, Zambia.

International Journal of Science and Business, 2022, vol. 6, issue 1, 85-93

Abstract: Research studies were conducted to screen 110 cowpea genotypes against Callosobruchus maculatus commonly known as the cowpea weevil, under the no-choice infestation condition. Out of all the genotypes screened, BBBT1-11 outperformed all the genotypes across all parameters investigated. BBBT1-11 recorded 13.01 no. of eggs/100 seeds compared to MS1-8-2-6-9-1 with 128.67 eggs/100 seeds. The adult emergence on BBBT1-11 was at 12.72% compared to the highest LTBT1-5 at 88.11%. The lowest growth index of 0.42 and frass of 0.23g was recorded on BBBT1-11. BBBT1-11 could be further assessed for the possible presence of biochemical substances, which could explain the observed differences among the genotypes in their reaction to C. maculatus. Besides, BBBT1-11 can also be incorporated into the breeding program with the target of breeding cowpea varieties that are tolerant to pest infestation.

Keywords: Callosobruchus maculatus; weevils; mutants; tolerance. (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ijsab.com/wp-content/uploads/867.pdf (application/pdf)
https://ijsab.com/volume-6-issue-1/4973 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:aif:journl:v:6:y:2022:i:1:p:85-93

Access Statistics for this article

International Journal of Science and Business is currently edited by Dr. Md Shamim Hossain

More articles in International Journal of Science and Business from IJSAB International
Bibliographic data for series maintained by Farjana Rahman ().