19. TRANSPLANTING. 



Illustrative material: A tree that has been recently dug for 

 transplanting. Wash the roots clean and let the pupils see how 

 many places they can find where rootlets have been broken off. 

 If possible, give the pupils a practical demonstration lesson in 

 tree planting out of doors. 



Method of Transplanting. It is sometimes desirable to 

 remove a living plant, the roots of which are growing in 

 the natural soil, to another place. This process is called 

 transplanting. The more common method of transplant- 

 ing is to take the roots or a part of them out of the soil, 

 and to replant them in a new place. Sometimes a quan- 

 tity of the soil that contains the roots is removed to the 

 new place. 



Rough Handling Destroys Fine Roots. Figure 44 

 shows a young oat plant, the roots of which were washed 

 out of the soil by a gentle stream of water. Most of the 

 roots were saved. Figure 45 shows another oat plant, 

 with which an attempt was made to draw the roots from 

 the wet soil. Most of the roots were torn off. The 

 latter picture shows about what happens when trees or 

 other plants are taken up by the common methods. Only 

 a few of the oldest and largest roots came up with the 

 plant. 



Rules for Transplanting We learned from Lesson 5 

 that the water of plants is absorbed by root hairs which 

 grow on the youngest roots only. When a plant is taken 

 up for transplanting, as shown in Figure 45, its power 



8 4 



