LABORATORY MANUAL OF HORTICULTURE 



1. Select several plants, such as the geranium, coleus, car- 

 nation, chrysanthemum, cactus, etc., and study. Make a number 

 of cuttings from each kind of plant. Draw a cutting, natural 

 size, from each of the plants, and label. It is always best to 

 remove about one half of the leaves before planting the cutting. 

 Why is this procedure necessary ? Explain. Now secure some 

 cuttings from each of the above plants that have been rooted, 

 and examine carefully. Where do the roots start ? Is there any 

 callus tissue present ? If so, describe. Make a drawing show- 

 ing the callus tissue, and the roots just starting. Label all 

 of the parts. 



2. Secure several plants with semihard wood, such as the 

 oleander, rose, hydrangea, etc., and compare these plants with 

 those in 1. What difference do you find in the texture of the 

 wood? Describe any other unlikeness or differences. Make a 

 natural-size drawing of each cutting, four inches in length. Dif- 

 ferentiate between the still-growing and the nearly ripened 

 wood cutting. 



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