92 Principles of Plant Culture. 
end, in the case of roots (Fig. 29). While these operations 
probably do not often increase the total number of root-tips, 
and hence do not enable the plant to take up a greater 
amount of nourishment, they do cause a more compact root 
system, which is of very great advantage in young plants 
grown in the seed-bed or nursery, for subsequent removal to 
a less favored environment. 
Fic. 30. Showing effectslof transplanting on root growth of celery plants. 
The left two plants were transplanted when“quite small; the right two were not. 
(After (Green). 
