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Nigeria Agricultural Journal

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Effect of different vine lengths on the growth and yield of orange-fleshed sweet potato in ultisol of south-eastern Nigeria

UA Achebe, SN Udeorah, CV Ilodibia

Abstract


Field experiment was conducted in 2014 cropping season at the Teaching and Research Farm of the Agricultural Education Department, Nwafor Orizu College of Education, Nsugbe to investigate the effect of different vine  lengths on the growth and yield of orange-fleshed sweet potato (Ipomea batatas(L) Lam) in ultisols of Anambra South Eastern Nigeria. The treatments were five different vine lengths of orange-fleshed sweet potato (20cm,  25cm, 30cm, 35cm and 40cm). The experiment was laid out in a Randomized Complete Block Design  replicated three times. Data were collected on vine length and number of leaves per plant at 4 weeks interval,  while data on yield parameters were collected at physiological maturity. The statistical analysis indicated  significant differences in the parameters measured at 5% level of probability. Result showed that among the  different vine length used, plants sown with 30cm vine length performed significantly better than the others in  both growth and yield attributes, followed by 20cm vine lengths. The study therefore recommended that 30cm  vine length is most suitable for orange-fleshed sweet potato and should be used for optimum growth and yield in Anambra South-East, Nigeria.

Keywords: Orange-fleshed, sweet potato, growth, yield and vine length.




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