PLANT PROPAGATION 



105 



materials) from around the embryo corn plant. Plant the 

 corn grains and the corn embryos in rich soil, covering both 

 with the same depth of earth, and marking the location of the 

 two sets. Put them in a warm place. 



1. Describe the preparation of the experiment. 



2. At the end of two weeks state the number of each group of 



seedlings that have pushed through the soil. 



3. What difference in the size of the two sets of seedlings do 



you notice at the end of two weeks? at the end of 

 three weeks? 



4. What has this experiment taught you ? 



II. OTHER METHODS OF PLANT PROPAGATION 



113. Grafting. The method often adopted by fruit growers 

 to produce new and better varieties is that known as grafting. 

 This method of plant propa- 

 gation may be carried on in 

 the following manner. A 

 young shoot, known as the 

 scion (Fig. 47, A, 6), is cut 



FIG. 47. Methods of grafting. 



in an oblique direction from a tree, the fruit of which is desired, 

 and a similar oblique cut is made across the twig of another tree, 

 called the stock (Fig. 47, A , a) , of a related kind. The two freshly cut 

 surfaces are then closely applied to each other, and the scion and 



