ROOT CROP PROJECTS 185 



Turnip : Purple Top Globe and Purple Top Strap Leaf. 

 Parsnip : Guernsey and Hollow Crown. 



Salsify: Mammoth Sandwich Island, Long White, and Long 

 Black. 

 Kohl-rabi : White Vienna and Purple Vienna. 



1. What varieties of each class of the root crops would you select 



for early, medium, and late use ? 



2. How may the varieties of the various root crops he classified? 



3. Make a thorough study of all the varieties that can be found in your 



community. 



i. Sources of seed. — It is important to determine as far as 

 possible the sources of the best strains of seed. There is a great 

 difference in the quality of root crop seeds. Some growers at- 

 tach so much importance to this matter that they grow and select 

 their own seed. This is especially true of the beet. The roots 

 desired for the production of seed are selected with extreme care 

 so as to secure the greatest uniformity in size, shape, and color. 

 They are then stored during the winter as explained in W : 197 

 and planted early in the spring. Gardeners will find the growing 

 of root crop seeds a most interesting proposition and it is well 

 worth the attention of thoughtful students. 



The principles involved in the production of garden seeds are 

 discussed in W : 43. 



1. What may be said about the importance of obtaining superior 



root crop seeds? 



2. Where can you obtain high-grade seed of the different kinds of 



root crops? 



