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2. Influence of length of the illumination period on root formation in cassava (Manihot esculenta Pohl.);Bolhuis;Neth. J. Agric. Sci.,1966
3. Characteristics of high yielding cassava varieties;Cock;Exp. Agric.,1976
4. Ecophysiology of cassava;Cock,1975
5. Effects of spacing on cassava (Manihot esculenta);Cock;Exp. Agric.,1977