36o NEW JERSEY STATE AGRICULTURAL 



acteristics when the whole output of a plant is included. For ex- 

 ample, the question of size, color and smoothness are decidedly- 

 modified by age, and when any pods are even a little immature 

 the peas are classified with difficulty. Much more work is needed 

 to warrant any conclusion as to whether size is among the unit 

 characters. There seem to be several, for example, as to size, 

 shape, form and color of pods. 



In the cross in question, the "American Wonder" is a dwarf 

 variety with medium-sized pods and large, green, much wrinkled 

 seeds, while the "French Canner" is a standard sort with slender 

 stem, bearing small pods and small, light or flesh-colored smooth 

 peas. The contrasts are many, and the cross, therefore, involves 

 striking differences. 



So far as the whole plant is concerned, the "French Canner" 

 has controlled the size, and a large plant, as a rule, may be ex- 

 pected from the cross with only an occasional dwarf plant (pos- 

 sibly one in four) appearing among the offspring of the stand- 

 ard plants. In the size of the pods, the "American Wonder" has 

 had a very marked influence, but the data are too limited for the 

 exact value of each parent to be determined for the present. 



The eight plants that grew from wrinkled seeds all produced 

 wrinkled seeds without exception. In the set in this group, in 

 which the seeds were cream colored, there were 75 green seeds in 

 the total of 408 peas, and from the two plants grown from green 

 wrinkled peas, the seeds (76) were all green, but the shade dif- 

 fered strikingly in the two plants, although constant in the re- 

 spective plant. 



Of the sixteen plants grown from smooth seeds, one was weak, 

 and its seeds were rejected. The following results were obtained 

 from the test : 



Smooth, Cream, Large, 114 



Smooth, Cream, Small, 107 



Smooth, Green, Large, * 125 



Smooth, Green. Small, 2 



Wrinkled, Cream, Large, 21 



Wrinkled, Cream, Small, 5 



Wrinkled, Green, Large, 34 



Wrinkled, Green, Small, o 



