334 :n^ew jersey agricultural college 



With- the abject, just stated, six pairs of rows ("Breeders"), 

 six inches apart in each case, were planted (1905) in Avidely sep- 

 arated parts of the gardens. These pairs were composed of the 

 "Jackson Wonder" in union with one of the following white 

 seeded varieties: "Burpee/ "Dreer," "Henderson," "Willow 

 Leaf," "Woods" and "Station Bush." White seeds from these 

 sets, planted in 1906, gave in each instance ("J. W."*-"Dreer" 

 excepted) large, thrifty, prolific blend plants, which produced 

 solid, dark red seeds — an indication that natural crossing with 

 the "Jackson Wonder" had taken place. Seeds of like color (dark 

 red) were also discovered as the product of certain plants gi'own 

 from "J. W." seeds, but, as this color has already resulted from a 

 selection of the darkest "J. W." (commercial), these oould not be 

 considered as a sure sign of mixed blood. In respect to the "J. 

 W."-"Woods" and the "J. W."-"Station Bush" sets, runners were 

 developed by certain individuals, a character, strongly manifest 

 in later generations. A reference; to the annual report for 1906 

 (page 453) shows that the seed colors are classed in six different 

 groups. The "Brick-red mottled" and "Light-red mottled" have 

 not appeared in every "set" and seem less stable than the other 

 four ("J. W." type, "Dark-red," "Light-red" and "\ATiite"). The 

 "Brick-red mottled" was discovered (first generation) only in the 

 "J. W."-"Willow-leaf" and "J. W."-"Station Bush" crosses, the 

 "Light-red mottled" in the "J. W."-"Willow-l6af" and the "J. 

 W."-"Woods" crosses. 



Taking these seed colors as a guide, selection was made from the 

 six pairs with the object of learning something in regard to color 

 inheritance. The union of "J. W." with "Woods" produced cer- 

 tain "Viny" plants, which gave rise to a "Runner" set, and, be- 

 cause of this undesirable tendency they were finally discarded. 



* "Jackson Wonder" will hereafter be referred to as "J. W." 



