CHAPTER II 

 PLANT STUDY 



Elements and compounds. 

 Classes of compounds in plants. 



Water, ash, carbohydrates, fat, protein. 



Materials determined by the chemist. 

 Structure and functions of plant parts. 



Cells of plants. 



Epidermis and bark of plants. 



Function of roots. 



Function of stems. 



Function of leaves. 



Function of flowers. 



The buds. 



Propagation by spores. 

 Propagation by seeds. 



Conditions necessary for germination. 



Storing of seeds. 



Quality of seeds to purchase. 

 Propagation of field, vegetable, and greenhouse crops by division. 



Division of the crown. 



Specialized buds. 



Fleshy roots. 



Herbaceous cuttings. 



Tillers and rootstocks. 

 Propagation of fruit plants by division. 



Hardwood stem cuttings. 



Root cuttings. 



Layers. 



Grafts. 



Buds. 



List of commercial methods. 



CROPS are the products of plants. In some cases the product 

 is the fruit, as the apple and Indian corn ; in others, the root, 

 as turnip and beet ; in others, the leaves, as lettuce and tobacco ; 



5 



