Second Generation Half-sib Progenies Wood Production of Grevillea in the Region of Avaré - SP

Abstract

The Grevillea robusta A. Cunn is utilized for coffee plantation shading, crops growing and pasture shading, apiculture, ornamentation and wind breaks. It is also used to produce sawn wood. One test of 28 second generation half-sib progenies was planted in Forestry Institute of São Paulo, with 20°03´S latitude and 48°54´W logitude geographic coordenates and 630m of altitude. The main objectives of this paper were to select genetic material capable to produce more volume of wood. The total heigth and diameter at breast height (DBH) were measured on the three yars old second generation half-sib progenies test. The volume was calculated and the results led to the following conclusion: The best second generation progeny was the number 12, which came from an australian progeny called GJM980 from Boyd River (NSW) provenance. The volume gain of the best second generation progeny when compared with the experiment average mean was greater than 138%. By the same token, the volume gain of 12 second generation half-sib progenies was superior to 32%.