474 NEW JEESEY AGEICULTUEAL COLLEGE 



In color of fruit the red and yellow follow the law, the red domi- 

 nating, and the same is true of the pink and the yellow. When the 

 red and pink are bred together the red dominates less evidently. 



The characteristic hairiness of the "peach" fruit seems to be antag- 

 onistic to that of smoothness in the fruit and dominated by the latter. 

 Thus, in a cross between 'Tgnotum" (62) and "Red Peach" (178), 

 there were seventeen plants with smooth fruit and two of the true 

 "peach" type. 



It is seen that the following pairs in tomatoes seem to fall under 

 Mendel's law of heredity, the dominant character Ijeing placed first: 



"Mosaic" Disease Amone Tomatoes. 



Among the crosses of tomatoes there were certain plants which 

 showed a mottled yellow in the foliage all through the season. As 

 a rule, such plants did not flourish and rarely produced more than a 

 few fruits. This trouble resembles the one by the same name in other 

 kinds of plants, prominently the tobacco, and is likely due to a similar 

 cause. The "Mosaics" were generally pulled out to lessen the liabil- 

 ity of the trouble being communicated to other plants, but a close 

 watch for it did not reveal it in any plants that were not marked with 

 it soon after they were set in the field. The trouble may be quickly 

 recognized by the angular patches of yellowish green, seemingly dis- 

 tributed without order in the ordinary green of the foliage. Such 

 afflicted plants remain small and are comparatively worthless. 



The following crosses showed this trouble in particular : "Arcadia" 

 and "Bright and Early," "Champion" and "Champion Scarlet," 

 "Dwarf Stone" and "Early Tree," "Champion" and "Quarter Cen- 

 tury." It appears in the "standards" and "dwarfs," and "fine" and 

 "coarse-leaved" sorts. Seed has been saved from badly-diseased plants 

 with the view of determining whether the offspring of a diseased 

 parent will show the "Mosaic" in particular abundance. 



The fruits of "Mosaic" plants sometimes showed the peculiar mark- 

 ings all through their growth, and when mature the areas that lacked 

 the green had a silvery appearance instead of the ordinary color of 

 the fruit. 



