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Caracterizacao dos recursos genéticos do cacaueiro, 1: Folha, fruto e sementes de selecoes da Bahia das séries SIC e SIAL

by Castro, G.C.T. de; Bartley, B.G.D.
Publisher: 1983Subject(s): THEOBROMA CACAO | RECURSOS GENETICOS | DESCRIPTORES | CLONES SIAL | CLONES SIC | HOJAS | FRUTO | SEMILLA | BRASIL | THEOBROMA CACAO | GENETIC RESOURCES | LEAVES | FRUIT | SEEDS | BRAZIL | THEOBROMA CACAO | RESSOURCE GENETIQUE | FEUILLE | FRUIT | GRAINE | BRESIL In: Revista Theobroma (Brasil) v. 13(3) p. 263-273Summary: Twenty-six selections of the Bahia cacao population belonging to the SIC and SIAL series were characterized for certain descriptors of the leaves, fruits and seeds. Variation in leaf blade dimensions was small indicating that leaf shape was similar in all clones. Fruit diameter variability was small but large variation in length indicated genetic differences between clones for fruit shape. Observations on seeds concerned the characters of the cotyledons, whose wet and dry weights were generally higher in the SIAL clones. Inter-character correlations indicated that many variables were expressed independently of the others. The highly significant correlation coefficient between whole fruit weight and husk weight showed that the latter is the major component of fruit weight. Estimates of sample sizes calculated from the data of individual clones indicated that for most descriptors the sample sizes used were satisfactory. In the case of whole fruit weight, husk weight and seed number the influence of external factors produced estimates of low reliability.
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Twenty-six selections of the Bahia cacao population belonging to the SIC and SIAL series were characterized for certain descriptors of the leaves, fruits and seeds. Variation in leaf blade dimensions was small indicating that leaf shape was similar in all clones. Fruit diameter variability was small but large variation in length indicated genetic differences between clones for fruit shape. Observations on seeds concerned the characters of the cotyledons, whose wet and dry weights were generally higher in the SIAL clones. Inter-character correlations indicated that many variables were expressed independently of the others. The highly significant correlation coefficient between whole fruit weight and husk weight showed that the latter is the major component of fruit weight. Estimates of sample sizes calculated from the data of individual clones indicated that for most descriptors the sample sizes used were satisfactory. In the case of whole fruit weight, husk weight and seed number the influence of external factors produced estimates of low reliability.

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