Artículos de revistas
Selection of Eucalyptus grandis families across contrasting environmental conditions
Fecha
2019-01-01Registro en:
Crop Breeding And Applied Biotechnology. Vicosa-mg: Brazilian Soc Plant Breeding, v. 19, n. 1, p. 47-54, 2019.
1984-7033
10.1590/1984-70332019v19n1a07
S1984-70332019000100047
WOS:000464174000007
S1984-70332019000100047.pdf
1820626100081027
0000-0001-9088-3924
Autor
Inst Pesquisas & Estudos Florestais
Universidade Estadual Paulista (Unesp)
Estn Expt Agr Concordia
Univ Sunshine Coast
Institución
Resumen
The objective was to select productive and stable E. grandis families across contrasting sites in Brazil and Uruguay. Survival and growth of 130 open pollinated families were evaluated three years after planting. Survival ranged from 28 to 89% and mean annual increment from 20.5 to 48.4 m(3)ha(-)y(-1). Low productivity in one site was attributed to unusually low rainfall and in the other, because of Cylindrodadium leaf disease. Heritability among families and the correlation family by environment were intermediate. Genetic pairwise correlations ranged from 0.03 to 0.81 across sites. The lowest genetic correlation between sites was observed where Cylindrocladium leaf disease occurs. Selection of top families across sites allowed selecting the best ones in each site. However, the effect of genotype-environment interactions was observed where climatic conditions are not adequate to the E. grandis, favoring the occurrence of Cylindrocladium disease.