a2 BULLETIN 754, U. S. DEPARTMENT OF AGRICULTURE. ° 
grown from the waxy seeds, and the lower group is the result of self- 
pollinating plants grown from the horny seeds. The 10 ears do not 
afford a sufficient number to determine whether 1 all-colored ear, 2 
ears segregating 3 colored to 1 white, and 1 ear segregating 9 col- 
ored to 7 white are obtained. 
No all-colored ears were obtained. Nine of the 10 ears are approxi- 
mating 25 per cent white, while the remaining ear, No. 1892, approxi- 
mates the Mendelian dihybrid ratio. The total number of seeds for 
the nine monohybrid ears is 2,158, with 24.7 per cent white, the de- 
viation being less than the probable error. None of the ears deviated 
in excess of three times the probable error, 5 were below, and 4 above 
the expected. 
TABLE XXIV.—Jnheritance of aleurone color in 10 ears of the colored X self 
progeny of maize ear No. 1131, the progeny of a cross between hybrids Dh 234 
and Dh 237. 
Number of seeds. 
Charactes of Gages and pedigree D-+E. Percentage 
No. of progeny. of white. 
Total. White. | Pxbected | neviation. 
Colored waxy X self: 
RTS (Ps eee ee nat 269 69 67 2 0.4 25.6 
SSB ieee itera ys ame ens 279 7. 69 6 1.2 26.9 
SSO Ar el a Gey haere eat 257 58 64 — 6 1.3 22.5 
89 (een SA oye IE ee tie 47 10 12 —2 1.0 21.3 
No) Hf) LE we ee 852 212 213 —1 1 24.9 
Colored horny x self: 
DYUSOD othe dF SER Se ak ae 36 18 15 3 1.5 50.0 
S93 bas Toe ibe Ghee ee ae 337 69 84 —15 2.8 20.5 
fantasia yt 3 "3 in 3 18 int 
ASG REEL ERE CCCI EA | Si 251 75 63 12 2.6 29.8 
TRS PAS ee hae ted Sears pea Ce 424 105 106 —1 2 24.8 
“AN0) 221) Lene nee ey om him er ea 1,306 323 326 — 3 4 24.7 
Total for both groups... 2, 158 535 539 — 4 . 29 24.7 
a Kar No, 1892 is assumed to be approximating 43.75 per cent white and is not included in the totals. 
PROGENY OF EARS NOS. 1110 AND 1134. ’ 
There were also two classes of seeds on ears Nos. 1110 and 1134, 
colored horny and colored waxy. These two classes were planted 
separately, and crosses were made between them. Self-pollinated 
ears were also secured from each class. 
The progeny of the two ears were examined separately, but no sig- 
nificant differences were found, so the progeny are tabulated together. 
COLORED X COLORED. 
As the result of crossing plants grown from the colored horny 
seeds with the plants grown from the colored waxy seeds of ears Nos. 
1110 and 1134, 24 ears were obtained (Table X XV). The crosses 
were made using the waxy plants as both male and female parents, 
