Critérios para selecao de híbridos com cacaueiro
With the aim of establishing selection criteria some yield components of six hybrids produced by crossing Catongo with introduced clones of Trinitario and Amazonian origin were analysed. The factor for converting the weight of the wet bean to that of the dried bean was 37 percent for Sca 6 and Sca 12, 40 percent for UF 613 and IMC 67 and 42 percent for ICS 1 and ICS 8. The combinations with Trinitario parents (ICS 1, ICS 8 and UF 613) had the highest values for the components of mean dry seeds weight per fruit (51-58 g) and of mean dry seed weight (1.42 - 1.54 g). Because of the lower numbers of fruits produced the combinations with UF 613 were inferior in terms of yield of dry cacao per plant. The low conversion factor transmitted by the parents Sca 6 and Sca 12 contributed to the low values for mean dry seed weight (minor 1.0 g) and the average weight of dry cacao per fruit (33 g). These crosses gave yields comparable to those of the ICS 1 and ICS 8 crosses due to a 41 percent greater production of fruits. The behaviour of the IMC 67 combinations was intermediate, the yield of dry cacao per plant being 1.80 kg with values of the components calculated as 44 g for the mean weight of dry seeds per fruit and 1.04 g for the mean dry seeds weight.
| Main Authors: | , , |
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| Format: | biblioteca |
| Published: |
1983
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| Subjects: | THEOBROMA CACAO, SELECCION, HIBRIDOS, RENDIMIENTO, CULTIVAR CATONGO, CLONES TRINITARIOS, CLONES AMAZONAS, |
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