SHORT -ROOT PRUNING 



247 



PLUM (LOMBARD, BUDDED ON MYROBALAN ROOTS) 



(Twenty-five trees in each lot) 



A. Normal. Tap-root, eight inches; side roots, three to six 



inches. Twenty-three lived. Right-hand specimen in 

 Fig. 166 is an average root. Weight of tree and root, 

 five pounds ten ounces. 



B. Tap, six inches; side, two to four inches. Twenty-three 



lived. 



C. Tap, four inches; side, two inches. Twenty-four lived. 



D. Tap, four inches; sides, one inch. Twenty-two lived. 



Left-hand specimen, Fig. 166, is an average root. 

 Weight six pounds ten ounces. 



All the lots were remarkably uniform in size 

 and thriftiness. From the tops it would have 



166. Stub-root and long-root on plum. 



been difficult to distinguish them. The short- 

 pruned roots gave the shallowest root systems, 

 however. It is easy to account for the large size 

 of the short -pruned trees, for the Myrobalan plum 

 grows readily from cuttings. 



