Morphological Characterization of Desmodium dichotomum Germplasm Collected from Eastern Amhara (Ethiopia)

Document Type : Research and Full Length Article

Authors

1 Animal Sciences, Agriculture, Wollo University, Dessie, Ethiopia

2 Department of Animal Sciences, Wollo University

Abstract

This study was conducted in 2019‒2020 to morphologically characterize and cluster 26 germplasm entries of Bouffordia dichotoma, the native legume collected in eastern Amhara (Ethiopia) for eventual selection of promising lines as forage crops. The IBPGR descriptors list were used for characterization of the entries and data were analyzed using R software. Cluster analysis was conducted to understand the genetic diversity within the collection and to group similar entries. The experimental design consisted of completely randomized blocks with three replications for one year. The resulting dendrogram showed 3 distinct groups of entries: Group 1 with 12 entries; Group 2 with 6 entries; and Group 3 with 8 entries. Group 1 was significantly different (P<0.05) from Groups 2 and 3 in terms of days to first flower, terminal leaflet length, terminal leaflet petiole length, length of inflorescence and plant height, as well as emergence, establishment, vigor, flowering and maturity. Leaf color of Groups 1 and 2 was light green while that of Group 3 was green. While most entries had semi-erect growth habit, those in Group 3 were prostrate or trailing. Three distinct types of seed coat colors were observed with Group 1 including dark brown, light brown and yellow, while Groups 2 and 3 were yellow only.

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Complete linkage method. 2008. In: The concise Encyclopedia of statistics. Springer, New York, NY. https://doi.org/10.1007/978-0-387-32833-1_71
Carvalho, M.A., Quesenberry, K.H., 2008. Morphological characterization of the USA Arachis pintoi
Krap. and Greg. Collection. Plant Systematics and Evolution 277:1–11. Doi: 10.1007/s00606-008- 0089-9
Hawkes, J.G., Maxted, N. and Ford-Lloyd, B.V., 2000. The ex situ conservation of plant genetic resources. Kluwer, Dordrecht.
Hunegnaw, A., 2020. A survey to assess the value of the legume chimero (Bouffordia dichotoma syn. Desmodium dichotomum) in mixed farming systems in North and South Wollo Zones, Amhara Region, Ethiopia, Tropical Grasslands-Forrajes Tropicales. 8:11–19. Doi: 10.17138/TGFT(8)11-19
IBPGR/ICRISAT., 1990. Report of a workshop on genetic resources of wild Arachis species: including preliminary descriptors for Arachis, In: International crop network series 2. IBPGR/ICRISAT, Rome
IBPGR/ICRISAT., 1992. Descriptors for groundnut. IBPGR/ICRISAT, Rome
IBPGR.1984. International board for plant genetic resources. Commission of European communities: committee. On disease resistance breeding and use of gene banks. Descriptor list for forage legumes. CEC Secretariat, Brussels; IBPGR Secretariat, Rome.
Mendel, J.G., 1866. Experiments on Plant Hybridization. In: Negotiations of the Natural Research Association in Brno, 4: 3‒47.
Nunes, M.E.S. and Smith, G.R., 2003. Characterization of rose clover germplasm for flowering traits, Crop Science. 43:1523-1527. https://doi.org/10.2135/cropsci2003.1523
Ohashi, K., Ohashi, H., Nemoto, T., Ikeda, T., Izumi, H., Kobayashi, H., Muragaki, H., Nata, K., Sato, N. and Suzuki, M., 2018. Phylogenetic analyses for a new classification of the Desmodium group of Leguminosae tribe Desmodieae, The Journal of Japanese Botany, 93:165‒189. bit.ly/2YUbyZQ
R Core Team. 2019. R version 3.6.1. The R foundation for statistical computing.
Souza, E.and Sorrells, M.E., 1991. Relationships among 70 American oat germplasm. Cluster analysis using quantitative characters, Crop Science, 31:599-605.
Stalker, H.T., 1990. A morphological appraisal of wild species in section Arachis of peanuts, Peanut Science, 17:117–122.
Upadhyaya, H.D., Bramel, P.J., Ortiz, R. and Singh, S., 2002. Geographical patterns of diversity for morphological and agronomic traits in the groundnut germplasm collection, Euphytica, 128:191–204. https://doi.org/10.1023/A:1020835419262
Van de Wouw, M., Hanson, J. and Lenthi, S., 1999. Morphological and agronomic characterization of a collection of napier grass (Pennisetum purpureum) and P. purpureum x P. glaucum, Tropical Grasslands, 33:150-158.
Volume 12, Issue 2
April 2022
Pages 179-190
  • Receive Date: 18 March 2021
  • Revise Date: 03 July 2021
  • Accept Date: 03 July 2021
  • First Publish Date: 03 July 2021