Diversity among Morphological Traits of Segregating Sweetpotato [Ipomoea batatas (L.) Lam] Genotypes in Umudike, Nigeria
Gamaliel I. Harry
Department of Crop Science, Faculty of Agriculture, University of Uyo, P.M.B. 1017, Uyo, Akwa, Ibom State, Nigeria.
Ulasi, J. Ifeanyi
*
Department of Crop Science, Faculty of Agriculture, University of Uyo, P.M.B. 1017, Uyo, Akwa, Ibom State, Nigeria.
Okoiseh G. Edith
Department of Crop Science, Faculty of Agriculture, University of Uyo, P.M.B. 1017, Uyo, Akwa, Ibom State, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Genotypes of the sweet potato (Ipomoea batatas (L.) Lam) normally exhibit high variability in their morphological characters. A field experiment was carried out in 2017 at the National Root Crops Research Institute, Umudike, Abia State, Nigeria to assess the morphological diversity among the population of 68 first filial generation (F1) sweet potato genotypes (Ligri PC) derived from seeds produced through poly cross systems from the International Potato Center, Kumasi, Ghana, including two local check varieties (UMUSPO3 and TIS87/0087). A randomized complete block design with three replicates was used to set up this experiment. The morphology descriptor was used to evaluate the genotypes of sweet potatoes on sixteen characters that covered both folial and fresh storage root morphology. The data were then subjected to an analysis of variance to identify any differences between the measured morphological parameters and agronomic variables. Using cluster analysis, it was established that all of the genotypes could be categorized into four distinct groups based on their physical characteristics. Consequent, a vast gene pool would provide for effective recombination to create a viable sweetpotato variety with high agricultural value.
Keywords: Characterization, diversity, morphological traits, sweetpotato, variation
How to Cite
Downloads
References
Allemann J, Laurie SM, Thiart S, Vorster HJ, Bornman CH. Sustainable production of root and tuber crops (potato, sweet potato, indigenous potato, cassava) in southern Africa. S Afr J Bot. 2004; 70(1):60-6.
Ulasi JI, Afuape SO, Keyagha ER. Assessment of morphological diversity among full sibs of sweet potato (Ipomoea batatas (L.) Lam.) genotypes in umudike, southeastern Nigeria. Int J Agric Environ Biores. 2021;6(6):78-91.
Austin DF. Hybrid polyploids in Ipomoea section Batatas. J Hered. 1977;68(4):259-60.
Food and Agriculture Organization Corporate Statistical Database. (FAOSTAT) 2014. Agricultural production statistics. Food and Agriculture Organization of the United Nations.
Afuape SO, Okocha PI, Njoku D. Multivariate assessment of the agromorphological variability and yield components among sweet potato (Ipomoea batatas (L.) Lam.) landraces. Afr J Plant Sci. 2011;5(2): 123-32.
CIAT. Cali, Colombia. Biotechnology Research Unit [annual report]; 1993.
Yada B, Tukamuhabwa P, Wanjala B, Kim D, Skilton RA, Alajo A et al. Characterization of Ugandan sweetpotato germplasm using fluorescent labeled simple sequence repeat markers. Hortic Sci. 2010;45(2):225-30.
Tsegaye E, Dechassa N, Sastry DEV. Genetic variability for yield and other agronomic traits in sweet potato. J Agron. 2007;6(1):94-9.
National Root Crops Research Institute (NRCRI). Annual report of the National Root Crops Research Institute, Umudike; 2012.
Huaman Z. Descriptor for sweet potato. International Board for Plant Genetic Resources (CIP/AVRDC/IBPGR). Rome, Italy. 1991;133.
Mohammadi SA, Prasanna BM. Analysis of genetic diversity in crop plants—salient statistical tools and considerations. Crop Sci. 2003;43(4):1235-48.
CIP/AVRDC, IBPGR. Descriptor for sweet potato Huaman Z, editor. Rome, Italy: International Board for Plant Genetic Resources. 1991;133.
Amin A, Single J. Genetic variability, heritability and genetic advance studies in Carrot (Daucus carota var. sativa L.). Electron J Plant Breed. 2010;1(6): 1504-8.
Jindal SK, Arora D, Ghai TR. Variability studies for yield and its contributing traits in okra. Electron J Plant Breed. 2010;1(6):1495-9.
Rahman MH, Patwary MA, Barua H, Hossain M, Nahar S. Evaluation of Orange Fleshed Sweet Potato (Ipomoea batatas L.) Genotypes for Higher Yield and Quality. Agriculturists. 2013;11(2): 21-7.
Saraswati P, Soplanit A, Syaputra AT, Kossay L, Muid N, Ginting E et al. Trop Agric. 2013;51:74-83.
Ritschel PS, Huamán Z. Variabilidademorfológica da coleção de germoplasma de batata-doce da Embrapa-Centro Nacional de Pesquisa de Hortaliças. Pesquisa Agropecuária Brasileira. 2002;37:485-92.
Vimala B, Hariprakash B. Variability of morphological characters and dry matter content in the hybrid progenies of sweet potato (Ipomoea batatas (L.) Lam.). Gene Conserve. 2011;10(39): 65-86.
Daros M, Amaral Júnior AT, Pereira TNS, Leal NR, Freitas SP, Sediyama T. Caracterizaçãomorfológica de acessos de batata-doce. Hortic Bras. 2002;20: 43-7.
Tairo F, Mneney E, Kullaya A. Morphological and agronomical characterization of sweet potato [Ipomoea batatas (L.) Lam.] germplasm collection from Tanzania. Afr J Plant Sci. 2008;2:77-85.
Acquaah G. Principles of plant genetics and breeding. Oxford: Wiley-Blackwell; 2007.
Fongod AGN, Mih AM, Nkwatoh TN. Morphological and agronomical characterization of different accessions of sweetpotatoe (Ipomoea batatas) in Cameroon. Int Res J Agric Sci Soil Sci. 2012;2:234-45.