i88 



AMERICAN VINES. 



Rupestris vary between 7 and 16. These figures show how 

 great the influence of V. Vinifera is on the faculty of adapta- 

 tion of American vines. 



The grafts existing on these hybrids are very vigorous, 

 very fertile, and their fruit ripens early. 



Several hybrids of Vinifera and Rupestris have been advo- 

 cated as direct producers. Most of them yield poorly and bear 

 non-foxy but tasteless grapes. The berries are generally 

 small, sometimes very intense in colour. However, the 

 grafting with European -varieties diminishes their faculty of 

 adaptation. It is certain that most of them would grow 

 well in calcareous soil.s, but the poor quality of their fruit 

 does not enable them to be utilized. 



As a certain number of these hybrids are already in the 

 hands of the vine-growers, we will now study them. 



Fig. 91. Leaf of Aramon X Rupestris, Ganzin, No. i. 



