28 



EXPERIMENT STATION BULLETIN 351 



Fig. 3. Sugar Maple cuttings showing 



rooting of various sized cuttings after 



three months in cutting bed June to 



September, 1942 



pears likely that stratification in 

 ^^^^ sand at a depth of two feet gives 



%fir *^^^^Mk /""^Ht^ much the best results. 



*V 1 %-,«^B^™- » . ^ Cuttings from sugar maples 



of ages varying from 10 to 100 

 vears were treated with dif- 

 ferent gro\\'th-promoting sub- 

 stances. They were placed in 

 t\\'o t>'pes of beds: (a) outdoor, 

 covered with burlap, and (b) in 

 a shaded sash-covered bed lo- 

 cated in a shaded greenhouse. 

 Both were watered twice daily 

 in fair -weather. Two types of 

 rooting media, sand plus peat and 

 sand only were used. Cuttings 

 were treated with indolbut\ric acid solutions, Rootone, and water only. 

 They \\'ere taken from the current season's growth. 



Indoors carefully shaded, moisture-retaining beds were considerably 

 better than outdoor beds covered with burlap only. As maple leaves are 

 very sensitive to a dry atmosphere, it is important to keep them moist. 



The best time for gathering the cuttings is early in June. No ad- 

 vantage is obtained from hormone treatments, as higher percentage of 

 rooting were obtained in general from those treated a\ ith water alone. 

 There was considerable variation in rooting by cuttings from different 

 clones. Age of clone did not seem to matter particular!}'. One old clone 

 gave rooting as high as 53 per cent. Average percentages of rooting of 

 all treatments based on a total of about 2,000 cuttings were as follows: 

 water only, 18 per cent; Rootone, 15 per cent; indol-butyric acid, 14 

 per cent. 



C. L. Stevens, Stuart Dunn 

 1942 Plantations 



