368 



THE CANADIAN HORTICULTURIST. 



of fact, most of our common varieties pro- 

 duce an abundance of pollen. 



The number of trees of the pollinizer 

 would also depend largely on whether it has 

 value itself. If we are planting LeConte to 

 pollinate Kieffer, we would naturally try to 

 get along with the least possible number 

 which will do the work ; but if Bartletts are 

 to be used for the same purpose, we can 

 afford to increase the proportion. Some 



during the bright weather between showers. 

 If using Garber or LeConte to pollinate 

 Kieffer, every third row may be the polli- 

 nizer ; if using Bartlett, every other row. 

 For apples, cherries and domestic or Japan- 

 ese plums, the same proportion may be used. 

 In a commercial orchard, the pollinizer 

 should be planted in a solid row. Theoret- 

 ically, it is much better to have the polli- 

 nizer more evenly distributed among the 



Fig. 1904. — Talman Sweet. From Talman Sweet Pollen above, from Wagener 

 Pollen below. No Benefit from Cross-pollination. 



growers plant every tenth row to the polli- 

 nizer, but the proportion should usually be 

 greater. This might be enough if the 

 weather during the blossoming season is 

 very favorable for cross-pollination by wind 

 and insects ; but if it is showery, the poUi- 

 nizers should be more abundant, in order 

 that cross-pollination may be more general 



self-sterile trees ; practically, it will not pay 

 to so mix them except in small orchards. 



The Advantages of General Mixed 

 Planting. 



It would appear that the only thing to do 

 now is to find out what varieties are in- 

 clined to be self-sterile and the varieties 



