Phenotypic plasticity of okra for yield and associated traits

Journal of Underutilised Crops Research

Field Value
Title Phenotypic plasticity of okra for yield and associated traits
Creator Gerrano, Abe S. Matjeke, Bogaleng M. Khoza, Lindiwe Moalafi, Abueng Bairu, Micheal Matelele, Lehlogonolo A. Sema, Precious Truter, Mariette Venter, Sonja
Subject — association; food security; genetic variance; heritability; okra
Description Background: The genetic improvement of okra for the agro-ecological conditions requires adequate genetic background for understanding the inheritance of the traits and genetic control.Aim: To evaluate collection of okra accessions for their phenotypic plasticity and their relationships among tested accession.Setting: Field trail laid in a randomised complete block design of three replication.Methods: A total of 24 okra accessions were planted at Loskop Research Station in Limpopo province, South Africa, during the 2020 and 2021 cropping seasons.Results: The analysis of variance showed significant differences among the accessions for yield and related traits measured. The principal components analysis revealed 68.85% total variation. The genotypic coefficient of variance (GCV) was higher than phenotypic coefficient of variance (PCV) for all the measured parameters. The study revealed medium heritability for yield (33%), high (≥ 60%), for hundred-seed weight and number of fruits per plant. A positive significant correlation between grain yield and fruit yield per plant (r = 0.39) was observed.Conclusion: The study recommended accessions Acc No. 1859.2.3.1, Acc No. 1181.2.1.1 and Acc No. 1900.2.3.1 to be used as breeding lines in future okra breeding programme.Contribution: The accessions identified as potential parents for okra improvement programme, based on complementary agronomic traits could be used for direct cultivation by small-scale farmers and parental lines for breeding population.
Publisher AOSIS Publishing
Date 2024-04-08
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/jucr.v3i1.8
Source Journal of Underutilised Crops Research; Vol 3, No 1 (2024); 7 2958-0994
Language eng
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Rights Copyright (c) 2024 Abe S. Gerrano, Bogaleng M. Matjeke, Lindiwe Khoza, Abueng Moalafi, Micheal Bairu, Lehlogonolo A. Matelele, Precious Sema, Mariette Truter, Sonja Venter