Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions
Slender leaf (Crotalaria spp) is among the indigenous and underutilized vegetables in Kenya whose production is limited to the Western and Coastal regions of the country. For a long time, this crop has been neglected in terms of research and genetic improvement. There is therefore scanty information...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2020/2710907 |
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| author | Fridah A. Mwakha Bernard M. Gichimu Johnstone O. Neondo Peter K. Kamau Eddy O. Odari Joshua K. Muli Nancy L. M. Budambula |
| author_facet | Fridah A. Mwakha Bernard M. Gichimu Johnstone O. Neondo Peter K. Kamau Eddy O. Odari Joshua K. Muli Nancy L. M. Budambula |
| author_sort | Fridah A. Mwakha |
| collection | DOAJ |
| description | Slender leaf (Crotalaria spp) is among the indigenous and underutilized vegetables in Kenya whose production is limited to the Western and Coastal regions of the country. For a long time, this crop has been neglected in terms of research and genetic improvement. There is therefore scanty information on its morphological diversity and agronomic performance, hence the need for this study. Field experiments were carried out for two seasons in October to December 2018 and March to May 2019. The experiments were laid out in Randomized Complete Block Design with 29 accessions and replicated three times. Both qualitative and quantitative data were recorded from the accessions based on the Crotalaria descriptors. Quantitative data were subjected to analysis of variance using XLSTAT Version 2019, and accession means were separated using Student’s Newman Keuls test at 95% level of confidence. Both qualitative and quantitative data were subjected to multivariate cluster analysis, and a dendrogram was constructed using the unweighted pair-group method with arithmetic average. The principal component analysis was conducted to obtain information on the importance of the characters. Significant variation in agro-morphological traits was found within and between the two species. Cluster analysis grouped the accessions into seven major classes with a between-classes diversity of 75.13% and a within-classes diversity of 24.87%. This study sets the basis for genetic improvement of slender leaf in Kenya since the observed diversity can be exploited in selection for intraspecific and interspecific hybridization. |
| format | Article |
| id | doaj-art-dc2ca891bc7c4e2f9fc0a900944772b8 |
| institution | Kabale University |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Agronomy |
| spelling | doaj-art-dc2ca891bc7c4e2f9fc0a900944772b82025-02-03T01:04:10ZengWileyInternational Journal of Agronomy1687-81591687-81672020-01-01202010.1155/2020/27109072710907Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) AccessionsFridah A. Mwakha0Bernard M. Gichimu1Johnstone O. Neondo2Peter K. Kamau3Eddy O. Odari4Joshua K. Muli5Nancy L. M. Budambula6Department of Agricultural Resource Management, University of Embu, P.O. Box 6–60100, Embu, KenyaDepartment of Agricultural Resource Management, University of Embu, P.O. Box 6–60100, Embu, KenyaInstitute of Biotechnology Research, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000–00200, Nairobi, KenyaDepartment of Life Sciences, South Eastern Kenya University, P.O. Box 170–90200, Kitui, KenyaDepartment of Medical Microbiology, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000–00200, Nairobi, KenyaDepartment of Biological Sciences, University of Embu, P.O. Box 6–60100, Embu, KenyaDepartment of Biological Sciences, University of Embu, P.O. Box 6–60100, Embu, KenyaSlender leaf (Crotalaria spp) is among the indigenous and underutilized vegetables in Kenya whose production is limited to the Western and Coastal regions of the country. For a long time, this crop has been neglected in terms of research and genetic improvement. There is therefore scanty information on its morphological diversity and agronomic performance, hence the need for this study. Field experiments were carried out for two seasons in October to December 2018 and March to May 2019. The experiments were laid out in Randomized Complete Block Design with 29 accessions and replicated three times. Both qualitative and quantitative data were recorded from the accessions based on the Crotalaria descriptors. Quantitative data were subjected to analysis of variance using XLSTAT Version 2019, and accession means were separated using Student’s Newman Keuls test at 95% level of confidence. Both qualitative and quantitative data were subjected to multivariate cluster analysis, and a dendrogram was constructed using the unweighted pair-group method with arithmetic average. The principal component analysis was conducted to obtain information on the importance of the characters. Significant variation in agro-morphological traits was found within and between the two species. Cluster analysis grouped the accessions into seven major classes with a between-classes diversity of 75.13% and a within-classes diversity of 24.87%. This study sets the basis for genetic improvement of slender leaf in Kenya since the observed diversity can be exploited in selection for intraspecific and interspecific hybridization.http://dx.doi.org/10.1155/2020/2710907 |
| spellingShingle | Fridah A. Mwakha Bernard M. Gichimu Johnstone O. Neondo Peter K. Kamau Eddy O. Odari Joshua K. Muli Nancy L. M. Budambula Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions International Journal of Agronomy |
| title | Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions |
| title_full | Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions |
| title_fullStr | Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions |
| title_full_unstemmed | Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions |
| title_short | Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions |
| title_sort | agro morphological characterization of kenyan slender leaf crotalaria brevidens and c ochroleuca accessions |
| url | http://dx.doi.org/10.1155/2020/2710907 |
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