All trans-cis Î²-carotene content of selected sweet potato (Ipomoea batatas (L) Lam) varieties as influenced by different levels of nitrogen fertilizer application
A. N. Ukom1*, P. C. Ojimelukwe2 and E. O. Alamu3
1Department of Food Science and Technology, Abia State University, Umuahia Campus, Nigeria.
2Department of Food Science and Technology, Michael Okpara University of Agriculture, Umudike, Nigeria.
3Crop Utilization Unit, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.
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