1. Ampomah, Y.; Novak, F. J.; Afza, R., et al. Initiation and growth of somatic embryos of cocoa (Theobroma cacao L.) Cafe Cacao Thé 32:187–197; 1988.
2. Bucheim, J. A.; Colburn, S. M.; Ranch, J. P. Maturation of soybean somatic embryos and the transition to plantlet growth. Plant Physiol. 89:768–775; 1989.
3. Cirad. Manuel pratique d’histologie végétale. Montpellier, France: Laboratoire de cytogenetique et d’histologie vegetale; 1989:61.
4. Deloire, A.; Hebant, C. Peroxidase activity and lignification at the interface between stock and scion of compatible and incompatible grafts ofCapsicum onLycopersicum. Ann. Bot. 49:887–891; 1982.
5. Duhem, K.; Le Mercier, N.; Boxus, Ph. Données nouvelles sur L’induction et le développment d’embryons somatiques chezTheobroma cacoa L. Café Cacao Thé 33:9–14; 1989.