Sky Journal of Agricultural Research Vol. 6(2), pp. 015-021, February, 2017. Available online http://www.skyjournals.org/SJAR
ISSN 2315-8751 ©2017 Sky Journals

 

Full length Research Paper

Variability, correlation and heritability studies in West African okra (Abelmoschus caillei)

 

Chinatu, L. N.*, Okocha, P. I., Okoronkwo, C. M. and Harriman, J. C
 

Department of Agronomy, College of Crop and Soil Sciences, Michael Okpara University of Agriculture, Umudike. P. M. B., 7267, Abia State, Nigeria.     

 

*Corresponding author. E-mail: lawrencechinatu@yahoo.com.  Tel.: +2347034740325.

 

 

Accepted 2 February, 2017

 

 

Abstract

(Nine (9) varieties of Abelmoschus caillei were evaluated for yield and yield components in a randomized complete block design replicated three times at the Michael Okpara University of Agriculture, Umudike. F1 hybrids were raised through crosses between parents. Backcross1, Backcross2 and F2 plants were raised from F1. The total variance was partitioned into genetic and environmental variances and showed that large heritable variations existed among the varieties. High genotypic coefficient of variation, high broad sense heritability (82.42 – 94.03) estimates and high genetic advance (32.49 -40.47) with moderate to high narrow sense heritability (0.500 – 0.810) for plant height, number of leaves/plant, number of pods/plant and their high correlation coefficients, with fresh pod yield confirmed that vast potentials exist for A. caillei improvement through selection of desirable characters such as plant height, number of leaves/plant and number of pods/ plant. Selection from crosses between these genotypes: NGAE-96-012-1x OWODE, NGAE-96-0067 x OWODE and NGAE-96-0067 x NCRI-02 with very high narrow sense heritability estimates could be made during early segregating generations. 


Key words:
Abelmoschus caillei, yield, correlation studies, phenotypic variation, heritability.

 

 

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