Summary
The variability of the following characteristics of fresh cacao beans were studied, using samples of clones of different genetic origin: wet weight, length, width, thickness, and shell percentage, pulp percentage, and number of beans per pod.
All these characteristics showed highly statistical differences between clones and a very high discriminative value P to differentiate clones. It was also estimated that the best sample size, taking as a basis wet weight (the most variable character), was 3 seeds of 20 pods per clone.
Similar content being viewed by others
References
Alvarado R. and Bullard E. T., 1961. Variation of bean characteristics in hybrid cacao progenies. Proc. Caribb. Reg. Am. Soc. hort. Sci. 5: 105–111.
Duncan D. B., 1955. Multiple range and multple F test. Biometrics 11: 1–42.
Federer W. T., 1963. Experimental design. Theory and Application. MacMillan, New York, 544 pp.
Glendinning D. R., 1963. The inheritance of bean size, pod size and number of beans per pod in cacao (Theobroma cacao L.) with a note on bean shape. Euphytica 12: 311–322.
Kempthorne O., 1952. The design and analysis of experiments. Wiley, London, 631 pp.
Ostendorf F. W., 1956. Identifying characters for cacao clones. In: Reuniao do Comité Técnico Interamericano de Cacau, 6th, Bahia, Brasil 1956. Salvador, Brasil, Instituto de Cacau de Bahia, pp. 89–110.
Ostle B., 1954. Statistics in research. College Press, Ames, Iowa. 487 pp.
Paterson A. W. and Reed R. L., 1943. Variation in the size of Trinidad cacao beans and methods of its assessment. Trop. Agric., Trin. 11: 252–261.
Pound, J. F., 1932. The genetic constitution of the cacao crop. In: Imperial College of Tropical Agriculture, Trinidad. A. Rep. Cacao Res. 1: 10–24. Also 2 (1933): 9–25.
Stockdale F. A., 1928. An examination of the type-form of fruit present in the progeny of a single forastero cacao. Compiled from noted prepared for publication by the late H. L. van Booren. Trop. Agric. Mag. Ceylon agric. Soc. 71 (6): 328–342.
Sukhatme P. V., 1962. Teoria de encuestas por muestreo con aplicaciones. Traducción al Español de Ana Maria Flores y José Nieto de Pascual. 2a. ed. México, Fondo de Cultura Económica.
Uphof J. C. T., 1940. Una importante correlación en la selección del cacao. Hacienda 35 (11): 419.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Enríquez, G., Soria, J.V. The variability of certain bean characteristics of cacao (Theobroma cacao L.). Euphytica 17, 114–120 (1968). https://doi.org/10.1007/BF00038972
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00038972