470 Report of the Department of IIorticultitre of the 



cessive yellow in the eleven individuals of Ben Davis X Jona- 

 than, one can assume that the Esopus in the Ben Davis and 

 Esopus cross, is responsible for the yellow color. 



Esopus X Jonathan gave two reds, in Avhich the red was pre- 

 dominant. Erom so few individuals one can draw no conclusion, 

 yet the findings substantiate the statements made that Jonathan 

 does not carry yellow. 



Mcintosh is evidently a carrier of yellow, for in the Mcintosh 

 X Lawver — the male being the very dark red — one heterozy- 

 gous individual is produced, and in the Ben Davis X Mcintosh 

 seedlings — ■ Ben Davis probably not carrying yellow as has been 

 previously noted — there are eight apparently pure reds and 

 three individuals heterozygous for red and yellow. 



Ben Davis X Green Newtown is an interesting cross. The 

 maternal parent is supposedly a pure red and the paternal parent 

 is yellow with a very light red blush. In the segregation of red 

 and yellow, providing the former is dominant to the latter, ,tlie 

 ratio expected would be one pure red to one heterozygous red. 

 Eight reds and five yellowish reds or heteix)zygous individuals 

 are obtained, the expected classes appearing, but not in a 1:1 

 i*atio. 



The distribution of skin color, whether in the form of stripes 

 or solid colors, cannot be expressed in Mendelian terms. The 

 solid and blushed individuals appeared as follows: Ralls X 

 Xorthern Spy one solid, Ben Davis X Mcintosh two blushed, 

 Ben Davis X Green Xewtown and Sutton X Xorthern Spy, one 

 blush from each cross. All of the remaining seedlings produced 

 fruit striped and mottled in various degrees. 



Color of flesh. — In flesh colors, though a resemblance to either 

 one of the parents or to an intermediate condition is found in 

 all the individuals, the most marked difi^erences are found in the 

 Ben Davis X Mcintosh progeny. This would be expected since 

 Mcintosh has a very characteristic white flesh. In the eleven 

 Ben Davis X Mcintosh apples, six resemble Ben Davis in flesh 

 color, two are intermediate and three are distinctly Mclntpsh 

 whites. From so few numbers and because of the lack of knowl- 

 edge of the parents of these varieties, it is hardly possible to 

 give the gametic constitution of color. If, however, one com- 

 bines the six Ben Davis colors and the tw^o intermediates, it can 



