220 



PRACTICAL PLANT PROPAGATION 



VAGGINIUM Continued 



4. The new growth from the stumps, which without the sand would 

 consist of stems merely, is transformed in working its way through 

 the sand bed into scaly, erect, or nearly erect rootstocks which, on 

 reaching the surface of the sand, continue their development into leafy 

 shoots. (See fig. 106.) Although roots are formed only sparingly on 

 the covered bases of stems, they develop abundantly during Spring and 

 early Summer on these artificially produced rootstocks, and by the end 

 of Autumn all the shoots should be well rooted at the base. They 



Fig. 106. New shoots on a stumped Blueberry. The three shoots shown grew after 

 the plant had been cut to the stump. Their white color at the base indicates the 

 depth of the propagating bed through which they forced their way and from which the 

 plant was taken to be photographed. Roots had already begun to develop. Used through 

 the courtesy of Dr. F. V. Coville of the United States Department of Agriculture 



