Table 3. Effect of Growth Regulators on Rooting of Sugar Maple Cuttings 

 Part A. Solution Treatments — Quick-dip Method 



For growth regulators, 

 totals and average % 

 rooting exclusive of that for 

 p-chlorophenoxyacetic acid 



2094 



520 



Part B. Drv Powder Treatment 



Control 

 Hormodin No. 3 



828 

 828 



247 

 289 



540 



380 

 183 



25 



30 

 35 



Clonal Differences 



Some variations in rooting of sugar maple cuttings from different clones 

 were observed previouslv ( 2 ) . For each season of the work reported here, 

 records were kept of the rooting response of the cuttings from different 

 trees. The records are summarized in Table 4. Trees numbered 3, 4, 5. 

 and 6 were part of a row of old trees along a roadway at the Horticultural 

 Farm, University of New Hampshire. Records kept of trees 3 and .5 have 

 shown their sap to be exceptionally high in sugar content. Tree 3 is ex- 

 ceptionally vigorous with a pronounced "bushy" type of top growth. In 



Table 4. A Summary- of Clonal Differences in Rooting of Sugar Maple 

 Cuttings over a 5-year Period, 1954-1958 



