velutna from Missouri(up to 83 3%) excelled that of Q. nigra from Texas(15 7%) and of Q. macrocarpus from Montana (20 0%).

• 总出苗率以黑栎密苏里种源最高(达83 3%25),水栎得克萨斯种源和北方栎蒙大纳种源较低(仅为15 7%25和20 0%25)。