a Artikel Norman, J.C. | Ofosu-Anim, J. | Adjei-Frimpong, P. Disbudding Effects on Growth Analysis of Celosia (Celosia cristata) PDF 2011 - Firenze University Press Ist Teil von Advances in horticultural science [rivista dell'ortoflorofrutticoltura italiana] : 25, 4, 2011
a Artikel Norman, J.C. | Ofosu-Anim, J. | Boateng, B.O. | Adjei-Frimpong, P. | Bassaw, E.N. Response of Field Grown Celosia (Celosia crisata var. carmine) to Disbudding PDF 2009 - Firenze University Press Ist Teil von Advances in horticultural science [rivista dell'ortofloroftutticoltura italiana]. 23 (N. 3), 2009
a Artikel Norman, J.C. Response of Black Jack ("Bidens pilosa" L.) to Various Horticultural Practices PDF 1994 - Firenze University Press Ist Teil von Advances in horticultural science [rivista dell'ortofloroftutticoltura italiana]. 8 (N.4), 1994
a Artikel Shongwe, V.D. | Norman, J.C. Influence of some cultural practices on the yield and quality of amaranth (Hamaranthus hybridus L.) PDF 1993 - Firenze University Press Ist Teil von Advances in horticultural science [rivista dell'ortofloroftutticoltura italiana]. 7 (N.4), 1993
a Artikel Chongo, W.C. | Norman, J.C. Dry matter accumulation and partitioning in bambara groundnut (Vigna subterranea (L.) Verdc.) after anthesis PDF 1992 - Firenze University Press Ist Teil von Advances in horticultural science [rivista dell'ortofloroftutticoltura italiana]. 6 (N.3), 1992