@INPROCEEDINGS {LADIPO:1993b, title = {Production of quality tree seed}, author = {Ladipo, D. O. and Esegu, F. and Oduwaiye, E. A. }, editor = {Wolf, H. }, booktitle = {Seed procurement and legal regulations for forest reproductive material in tropical and subtropical countries}, series = {Proceedings of an International Symposium, 4-10, October, 1992}, year = {1993}, pages = {59--75}, publisher = {GTZ/Kenya Forestry Seed Centre}, organization = {GTZ}, location = {Nairobi, Kenya}, }