PROPAGATION OF PLANTS 157 



EXERCISES 



1. Let each pupil plant 100 grains of wheat and determine the percent- 

 age of vitality. 



2. Propagate two plants by cuttings and write the results of the ex- 

 periment. 



3. Let each pupil prepare two specimens of work in budding. 



4. Let each pupil prepare specimens of work showing the various kinds 

 of grafting. 



QUESTIONS 



1. Discuss the importance of the propagation of plants. 



2. Name the various ways in which propagation may be effected. 



3. Name the objects of propagation. 



4. Discuss the propagation of plants by seed. 



5. Discuss the importance of purity and vitality. 



6. What can you say of the necessity of maturity in the seed ? 



7. Discuss the condition of the parent plant and the effect of this on the 

 seed. 



8. What effect has age on germination ? 



9. Discuss the need of preservation and proper storage for seed. 



10. Discuss propagation by cuttings. 



11. Describe (a) leaf cuttings, (6) stem cuttings. Prepare specimens. 



12. Discuss root cuttings. 



13. Explain the art of budding. - 



14. Discuss grafting. Prepare specimens. 



15. Describe root grafting. 



16. Discuss layering. Illustrate. 



REFERENCES 



Art of Propagation, Jenkins. 



The Principles of Fruit Growing, Bailey. 



How to make School Gardens, Chapter on Grafting, Hemenway. 



