EXPERIMENT STATION BULLETINS. 



295 



As the tomatoes ripened those from each plant were picked and 

 weighed separately. 



RESULTS IN 1906. 



A large percentage of the fruits resulting where pollen was applied 

 merely to one side of the stigma were very much one-sided. Upon cutting 

 them open it was found that only one cell was full of pulp and seeds, 

 the other cells being seedless and having grown together, the cell full of 

 seeds taking up over one-half of the interior of the tomato. 



1. The Experiment in Progress. 



The fruits produced from blossoms which had a large amount of 

 pollen applied all over the stigma were smoother and averaged 14.7 

 grams heavier than those receiving a small amount of pollen over the 

 stigma. 



Striking results were obtained when only a very few pollen grains 

 were applied to the stigma. When a pistil is not fertilized at all the 

 whole flower, including the calyx, usually drops off. When only a few 

 pollen grains were applied to the stigma quite a number of blossoms 

 did not mature fruit but the calyx remained green and grew quite a little; 

 while the tomato started to grow but soon withered. Those that did 

 grow were slower in starting to enlarge than those from blossoms that 

 received a liberal amount of pollen. The mature fruits on the plants 



