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Title: Estimation of genetic parameters and verification of early selection efficiency in baru (Dipteryx alata).
Authors: SANTOS, A. M.
ROSADO, S. C. da S.
Affiliation: ALISSON MOURA SANTOS, CNPF; Sebastião Carlos da Silva Rosado, UFLA; Adelson Nascimento Oliveira, UFLA.
Date Issued: 2014
Citation: Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 14, n. 4, p. 238-243, Dec. 2014.
Description: This study aimed at verifying the efficiency of early selection, and estimating the genetic parameters in Dipteryx alata. The 66 half-sib families were obtained from three seed provenances at the Brazilian Savannah of the state of Minas Gerais. The experiment was carried out in a randomized block design with 3 replications and 5 plants per plot. Data diameters at breast height (DBH) and total height (TH) were taken at the ages of 64, 125 and 138 months. REML/BLUP methodology was applied in the D. alata different provenances and progenies. Analysis indicated significant genetic variability (P < 0.01) between and within provenances. Both traits, DBH and TH, presented high narrow sense heritability for the ages analyzed. High genetic correlation occurred between DBH and TH traits, and between ages (age-age); thus, it allowed indirect selection, as well as early selection with high genetics gains.
Thesagro: Cerrado
Dipteryx Alata
Espécie Nativa
Seleção Genética
Keywords: Baru
Espécie florestal
Parêmetro genético
Melhoramento genético
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CNPF)

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