Integrity Research Journals

ISSN: 2536-7064
Model: Open Access/Peer Reviewed
DOI: 10.31248/JBBD
Start Year: 2016

Exploitation of rank summation index for the selection of 21 maize hybrids for green maize production in South-eastern Nigeria   |   Article Number: DB8E85971   |   Vol.6 (2) - April 2021

Received Date: 16 February 2021   |   Accepted Date: 10 March 2021  |   Published Date: 30 April 2021

Author:  E. E. Okoli

Keywords: Green maize, maize hybrid, rank summation index, south-eastern Nigeria.

Green (fresh) maize (Zea mays L.) provides food security and income to farmers especially when other crops are still in the field. However, research on green maize varieties is scarcely reported in the literature or information on suitable genetic material (germplasm) for green maize production. Two local maize landraces collected from south-eastern Nigeria and five improved varieties sourced from the International Institute of Tropical Agriculture (IITA) were used for this experiment. These seven genotypes were crossed in a half diallel mating system in a randomized complete block design (RCBD) with four replications. Data collected were subjected to analysis of variance and those found significant (p = 0.05) were further subjected to diallel analysis using Griffing’s method II and model I for fixed effects. Rank summation index was used for all the traits studied to identify and select the best performer amongst the genotypes. The rank summation index identified and selected the crosses between DTMA-4 X OKA BENDE-WHITE, OKA MBAISE X OKA BENDE-WHITE, PVA SYM 8 F2 X OKA BENDE-WHITE, POOL 66/ACR-91 X OKA BENDE-WHITE and DMR-ESRY X OKA BENDE-WHITE for the production of green maize in south-eastern Nigeria.

IITA (2001). Annual report on maize production. International Institute of Tropical Agriculture, Ibadan, Oyo State.
Jaliya, M. M., Falaki, A. M., Mahmud, M., & Sani, Y. A. (2008). Effect of sowing date and NPK fertilizer rate on yield and yield components of quality protein maize (Zea mays L.). ARPN Journal of Agricultural and Biological Science, 3(2), 23-29.
Mulamba, N. N., & Mock, J. J. (1978). Improvement of yield potential of the Eto Blanco maize (Zea mays L.) population by breeding for plant traits. Egyptian Journal of genetics and Cytology, 7, 40-51.
Ngwuta, A. A., Ajala, S. O., Obi, I. U., & Ene-Obong, E. E. (2001). Potential sources of resistance to maize stem borers [Sesamia calamists (Hampson) and Eldana saccharina (walker)] in local maize population of south-eastern Nigeria. In: African Crop Science Proceedings (Vol. 5, pp. 25-28).
Okoli, E. E. (2020). Consumption and acceptability pattern of 21 evaluated maize hybrids for fresh maize production in south-eastern Nigeria. Journal of Agricultural Policy, 3(2), 45-52.
Okoli, E. E., & Okoronkwo, C. M. (2020). Heritability and combining ability estimates among seven varieties of maize in South-eastern Nigeria. International Journal of Science, Environment and Technology, 9(2), 98-107.