CENTRAL TRIAL STATION, ANNUAL REPORT, I906. 



85 



Results were as follows : 



King X Columbian, 29 flowers crossed, 21 set. 



King X Loudon, 38 flowers crossed, 28 set. 



King X Columbian, 22 flowers crossed, 20 set. 



Loudon X King, 9 flowers crossed, 5 set. 



Other varieties and crosses showed similar results. Eighty-two 

 per cent of the flowers crossed set fruit. 



Strawberry-Raspberry . — The following crosses were made with 

 the strawberry-raspberry (Rubus sorbifolius) : 



Strawberry-raspberry x King raspberry. 



Strawberry-raspberry x Ancient Briton blackberry. 



Strawberry-raspberry x Fluke's Hybrid blackberry. 



These crosses set about 40 per cent. 



Roses. — Crosses were made between the white and red rugosa 

 roses and some of our hardy hybrid perpetuals. Of about seventy- 

 five flowers of the white rosa rugosa crossed with hybrid perpetuals 

 not a single one set fruit. In fact, no perfect hips were produced on 

 these plants. 



Model Orchard, Minnesota State Experiment Station. 



Of the flowers of the red rosa rugosa crossed with the hybrid 

 perpetuals about 60 per cent set fruit. 

 Crosses were made as follows : 

 Red Rosa rugosa x General Jac. 

 Red Rosa rugosa x M. P. Wilder. 

 Red Rosa rugosa x Magna Charta. 

 Red Rosa rugosa x Paul Neyron. 

 Red Rosa rugosa x Duke of Edinburgh. 

 Red Rosa rugosa x General McArthur, 

 Red Rosa rugosa x Liberty. 

 Red Rosa rugosa x Richmond. 

 Red Rosa rugosa x Kate Montanie. 

 Red Rosa rugosa x Minnehaha. 

 Red Rosa rugosa x Mabel Chatney. 

 Red Rosa rugosa x Mrs. John Lang. 



