Repetibilidade e número de medicoes necessárias em avaliacao de híbridos de cacaueiro na Amazonia brasileira
This research aimed at the estimation of the repeatability and of the number of measurements needed to evaluate the trait total number of haversted fruits (NTFC)collected monthly per plant in cacao trees. Two field experiments with hybrid genotypes under competition grown at an ecologically representative site of the main producing region of Brazilian Amazon basin were utilized.In order to estimate the parameters, data concerning the trait were fruits collected monthly in an individual-plant basis during three years. The estimates of repeatability were obtained through the methods REML/BLUP values were 0.55 and 0.61 for individual plants within plots and 0.95 and 0.96 for seasonal averages, respectively for experiments 1 and 2. The estimates of number of measurements needed for efficient selection are six and seven repetitions for four and five years with 90% precision, respectively for the two trials cited. The number of measurements, effectively used, to the level of harvests, that was 3, is acceptable with a precision of approximately 80%.
| Main Authors: | , , , , |
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| Format: | biblioteca |
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| Subjects: | THEOBROMA CACAO, EISENIA FOETIDA, CASCARAS DE CACAO, SUBPRODUCTOS, RESIDUOS DE COSECHAS, ABONOS ORGANICOS, COMPUESTOS ORGANICOS, PROPIEDADES FISICOQUIMICAS, BRASIL, |
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