2.5 use of wood to cut the material culture is a long Groove along the length of the container. The distance between the Groove 2.5-5 cm deep, 3-5 mm, or approximately three times the size of the depth of;
2.5 Use wood plastic substrate is a long slit along the length of the container. Distance between 2.5-5 cm deep groove depth of 3-5 mm, or about 3 times the size of the seed.
2.5 use wood cut material culture is a long groove oil container. The distance between the length of the groove 2.5-5 cm deep 3-5 mm or deep around 3 times of seed size