i66 



PLANT PROPAGATION 



a dormant stock and succeed. When cion and stock do not come 

 into activity about the same time, the graft may succeed, but its 

 duration will be shortened. 



In order to study the limits of the possibility of grafting, experi- 

 ments were made with Rosaceae, Umbelliferae. Leguminosae, Crucif- 

 erae, Solanaceae and Compositae. With Rosaceae, Leguminosae 

 and Cruciferae the limit of grafting seems to be confined to genera 

 of the same tribe. With Solanaceae and Umbelliferae grafts were 

 successfully made between different tribes. With Composite the 

 limit seems to be the sub-family. 



216. Herbaceous grafting has been successfully practiced ex- 

 perimentally by Daniel,* with pea on bean, cabbage on kohl rabi, 



turnip, stock and other re- 

 lated plants, fennel on wild 

 carrot, carrot on parsnip and 

 vice versa, celery on parsnip, 

 winter lettuce on wild prick- 

 ly lettuce, spring lettuce on 

 salsify, salsify on scorzonera, 

 toadflax on snapdragon, al- 

 mond, peach and prune on 

 cherry. 



This experimenter also 

 found : that grapes will 

 unite between genera of 



FIG. 142 BORDEAUX MIXING FOR SMALL NURSERY 



One of the upper barrels contains blue stone stock solution, the other lime 

 solution. The tubs are used to dilute these solutions. The lower barrel mixes 

 these two solutions which then pass as one to the spray tank through a sieve. 

 A larger hose would be a decided improvement. 



Extended summary in Experiment Station Record, Vol. 5, p. 



