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Agriculturae Conspectus Scientificus, Vol. 88 No. 4, 2023.

Original scientific paper

Phenotypic Diversity of Jute Mallow (Corchorus olitorius L.) Germplasm

Gloria Afolayan ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Adesike Oladoyin Kolawole orcid id orcid.org/0000-0001-9061-3342 ; Crop Production and Soil Science Department, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
Damilare Adewumi Adetunji orcid id orcid.org/0000-0001-8777-7303 ; National Biotechnology Development Agency, Bioresources Development Center, Ilorin, Nigeria
Bisola Khadijat Oladimeji ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Adam Akinloye Olosunde ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Clement Michael ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Dickson Junior Nwosu ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Salimat Sulyman ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Anthony Ugochukwu Okere ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria
Sunday Ezekiel Aladele ; National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria

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Abstract

Corchorus olitorious L. is a leafy vegetable with antibacterial properties useful in the treatment of numerous diseases and having the potential to alleviate malnutrition. Despite the efficient role that varietal evaluation plays in breeding programmes to improve traits, C. olitorious is still under-researched. The objective of this study was to (i) characterize phenotypic variation in agronomic traits of germplasm collection of C. olitorious and (ii) identify superior accessions exhibiting desirable traits useful in a breeding programme for further improvement. The study examined 40 core collections of C. olitorious held at the National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria. The experiment was laid out under field conditions in an 8×5 α-lattice design with three replicates over two years. Qualitative and quantitative data were collected and analysed. Combined analysis of variance revealed highly significant (P < 0.001) mean squares between accessions for all measured traits. This variability can be exploited when selecting for these traits and can also speed up the identification of outstanding Corchorus accessions. The shift in mean performance of some accessions from the mean of the 40 accessions suggests that these accessions are potential sources of favourable alleles that may be useful for C. olitorious improvement. The results of the principal component analysis revealed discriminating features. The cluster patterns indicate intra-specific variability useful in selecting complementary parental lines. Accessions NGB00215, NGB00229, NGB00200, NGB00205, NGB00221, NGB00224, NGB00230 and NGB01261 were identified as outstanding in their performance with desirable traits. These accessions will be useful in future Corchorus breeding programmes.

Keywords

breeding, Corchorus olitorious L., characterization, selection, variability

Hrčak ID:

311916

URI

https://hrcak.srce.hr/311916

Publication date:

27.12.2024.

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