Superior Individual Tree Selection of Walnut Resources in Huili County of Sichuan Province

Based on the germplasm resource investigation of walnut trees in Huili County of Sichuan Province,3 superior individual tree strains were selected through preliminary,repeated and final selections. The 3 superior invividual tree strains were "Xiaoshu", "Taiping 1" and "Bailong 1". The Fresh fruit production per selected tree was 354 kg~418 kg,average mass of single nut was 5.54 g~15.61 g,the shell thickness was 1.45 mm~1.47 mm,the kernel percentage was 49.91%~50.41%,the crude protein was 20.53%~21.47%,and the crude fat was 65.22%~65.68%.