Seed Source Selection of Loblolly Pine for Jianghuai Area in China

Provenance test of cold-hardy Loblolly Pine were carried out at 4 sites in Jianghuai Area in 1983. 5-year results indicate that the growth of height and diameter of different seed sources are significant. A significant negative correlation was found between height growth and mean temperature. The best performing seed sources come from the northern and northeastern part of the natural range. 5 superior seed sources were selected for each experiment location based on their growth performance, survival and other adaptablities to the environment.