86 



MASS. EXPERIMENT STATION BULLETIN 190. 



Piece and Side-root Grafts. 



It was suggested that side-root grafts might root better than those 

 made in the usual manner of root grafts, and this was tried out, as shown 

 in Table 6. Considerable pains were taken to get a reasonably good fit 

 with the side-root grafts. It required more time to make them, and 

 they were more inconvenient to plant. The root used was about 2 to 3 

 inches long, and the scion projected below the union about the same 

 distance. As shown b}^ Table 6, side-root grafts did root considerably 

 better than whip grafts, but this gain was more than offset by the smaller 

 proportion of the grafts growing. Of the whip grafts, 37 per cent of 

 the number planted made own-rooted trees, while of the side grafts only 

 30 per cent showed roots from the scion. Therefore this test indicates no 

 advantage of the side-root graft over the ordinary whip graft in estab- 

 lishing trees on their own roots. 



Table 6. — Piece and Side-root Grafts. 



