12 
BULLETIN 1354, U. S. DEPARTMENT OF AGRICULTURE 
Table 6. — Relative productiveness of crosses between self-fertilized lines of corn as 
differences in yield per 10 plants over or under the yield of the corresponding 
check plants in the number of perfect hills stated 
Pedigree No. 
Number 
of per- 
fect hills 
Yield (pounds) 
Field row 
Check 
Difference 
between 
check and 
cross i 
1 2 
3 
4 
5 
No. 64d._ 
10-3-1-1-2-2 X 2-2-2-4-4-1 
6 
71 
67 
50 
90 
85 
60 
62 
87 
75 
93 
93 
89 
76 
90 
86 
84 
83 
37 
91 
70 
98 
35 
93 
80 
44 
78 
70 
75 
76 
50 
78 
88 
4 
47 
60 
59 
84 
82 
27 
50 
77 
81 
49 
35 
93 
45 
86 
70 
50 
90 
70 
82 
92 
84 
14 
55 
25 
16 
105 
92 
43 
15 
89 
81 
79 
3.79 
4.25 
4.78 
5. 77 
6.34 
3.57 
5.78 
4.54 
5.18 
5.04 
6.08 
5.86 
5.66 
4.46 
5.36 
6.20 
5.84 
5.14 
4.53 
5.31 
4.24 
5.98 
6.71 
5.32 
5.90 
4.40 
6.66 
5.68 
3.71 
4.56 
4.82 
4.12 
5. 51 
4.17 
4.91 
5.36 
3.98 
5.41 
6.72 
4.17 
4.37 
5.18 
5.68 
4.88 
6.29 
5.74 
5.49 
5.81 
4.87 
6.12 
4.93 
4.75 
5.31 
4.81 
5.45 
4.98 
4.98 
5.60 
4.93 
6.19 
5. 54 
5.81 
5.76 
5.86 
5.87 
5.79 
2 2. 40± 
No. 52 
10-3-1-2-2-3 X 7-4-2-1-1-2. 
2. 31±0. 24 
No. 39... 
10-3-1-2-1-5 X 7-4-1-6-6-2 
1. 77± . 24 
No. 16. 
2-2-2-4-2-1 X 10-3-1-1-2-2 
1. 65± . 30 
No. 12 
No. 60 
10-3-1-1-2-2 X 5-1-2-2-1-3 
10-3-1-1-1-4 X 7-4-1-6-6-2 
1. 26± . 21 
1. 23± . 21 
No. 21 
7-4-1-6-6-2 X 10-3-1-1-2-2 
1. 20± . 27 
No. 40 . 
10-3-1-2-2-3 X 2-2-1-3-2-1 
. 94± . 27 
No. 23— 
10-3-1-1-2-2 X 5-1-2-3-2-2 
. 88± . 21 
No. 46 
7-4-1-6-6-2 X 2-2-2-4-4-1 
. 86± . 23 
No. 14.. 
10-3-1-2-2-3 X 2-2-2-4-4-1 
. 83± . 21 
No. 36 
5-1-2-2-1-3 X 2-2-2-4-2-1 
. 72± . 21 
No. 11 
10-3-1-1-1-4 X 5-1-3-3-1-2 
. 55± . 21 
No. 63 
10-3-1-2-1-5 X 5-1-3-1-1-2 
. 54± . 23 
No. 33.. 
10-3-1-1-1-4 X 5-1-3-1-1-2 
. 51± . 21 
No. 13 __ 
10-3-1-2-1-4 X 2-2-2-4-2-1 
. 51± .21 
No. 32.... 
7-4-1-6-6-2 X 10-3-2-1-3-3 
. 44± . 23 
No. 25 
10-3-1-2-2-3 X 5-1-2-2-1-3 
. 43± . 23 
No. 59 . 
10-3-2-1-3-3 X 7-4-1-Arlington 3 . 
. 37± . 35 
No. 29 
5-1-2-3-2-2 X 2-2-2-4-6-2 
. 32± . 21 
No. 65 
10-3-1-2-1-5 X 5-1-3-3-1-2 
. 31± . 24 
No. 6— . 
5-1-2-3-2-2 X 2-2-2-4-2-1 
. 27± . 20 
No. 73 
7-4-1-6-6-2 X 5-1-2-2-1-3 
. 21± . 35 
No. 24 
10-3-1-2-1-4 X 7-4-2-6-2-2 
. 20± . 21 
No. 9.... 
7-4-1-6-6-2 X 2-2-1-3-2-1 
. 17± . 23 
No. 67 
2-2-2-4-6-2 X 10-3-1-1-2-2 
. 17± . 35 
No. 1— 
2-2-1-3-2-1 X 5-1-2-2-1-3. 
. 10± . 23 
No. 2 
2-2-2-4-2-1 X 5-1-3-1-1-2 .. 
. 03± . 24 
No. 53 
10-3-2-1-2-1 X 2-2-2-4-6-2 
.01± .23 
No. 44 
5-1-2-3-2-2 X 7-4-2-1-1-2 . 
— . 08± . 23 
No. 43 
2-2-2-4-4-1 X 10-3-1-1-1-4 
- . 12± . 30 
No. 50 
10-3-1-1-1-4 X 2-2-2-4-6-2 
- . 12± . 23 
No. 22 
7-4-2-6-2-2 X 5-1-2-2-1-3 . 
— . 14± . 21 
No. 64a 
2-2-2-4-4-1 X 10-3-2-1-2-1 . 
- . 17± 
No. 68 
5-1-2-2-1-3 X 10-3-1-1-1-4 .. 
— . 32± . 30 
No. 26 
2-2-1-3-2-1 X 7-4-2-1-1-2 
- . 35± . 27 
No. 61 
10-3-2-1-3-3 X 5-1-2-3-2-2 
- . 44± . 27 
No. 27 
2-2-2-4-4-1 X 7-4-2-1-1-2 
— . 45± .23 
No 20 
5_1_3_3_1_2 x 7-4-1-6-6-2 
— . 49± . 23 
No. 51 
10-3-1-1-2-2 X 2-2-1-3-2-1 ... 
— . 49± .42 
No. 49 
7-4-2-6-2-2 X 10-3-1-1-2-2 
- . 51± . 30 
No. 47 
7-4-1-7-4-1 X 5-1-3-3-1-2 .. 
— . 53± . 23 
No. 37 
5-1-3-1-1-2 X 10-3-1-2-2-3— 
- . 54± . 23 
No 55 
7-4-1-6-6-2 X 10-3-1-2-2-3 ._ 
— . 54± . 30 
No. 42 
2-2-1-3-2-1 X 7-4-1-7-4-1 
No. 30 
5-1-3-1-1-2 X 10-3-2-1-3-3 
- . 63± . 21 
No. 41 
10-3-2-1-2-1 X 5-1-3-3-1-2 
— . 64-*- . 30 
No. 10 
7-4-2-6-2-2 X 2-2-2-4-4-1 
- . 66± . 21 
5-1-3-3-1-2 X 10-3-1-1-2-2 
— . 66=b . 24 
No. 74 
10-3-1-2-1-4 X 2-2-2-4-6-3 
- . 69± . 30 
No. 57 
10_3_1_1_1_4 x 7-4-2-6-2-2 .. 
- . 83± . 21 
No. 62 
7-4-1-7-4-1 X 5-1-3-1-1-2 
- . 90± . 24 
No. 31 
No. 56 . 
5-1-3-3-1-2 X 7-4-2-6-2-2 
7-4-1-7-4-1 X 2-2-2-4-6-2 
-1. 02± . 23 
-1.05± .21 
No. 19 
5_1_3_1_1_2 x 2-2-2-4-4-1 „ 
— 1. 09db .23 
No. 72 
No. 69 
5-1-3-3-1-2 X 10-3-1-2-2-3 
10_3_2-i-2-l X 5-1-3-1-1-2 — - . 
-1. 13=fc .60 
— 1. 17± . 27 
No. 48—. 
7-4-2-1-1-2 X 5-1-3-1-1-2 
2 -l. 18± 
No. 64b 
5-1-3-1-1-2X7-4-1-6-6-2 .. ... 
—1. 21± . 60 
No 5.. 
5-1-2-2-1-3 X 7-4-1-7-4-1 
-1. 30± . 19 
No. 34... 
5-1-2-3-2-2 X 7-4-1-7-4-1 . 
— 1. 36± .21 
No. 38.. 
5-1-3-3-1-2 X 10-3-2-1-3-3. 
-1. 38± .35 
No. 70—. 
2-2-1-3-2-1 X 10-3-1-1-1-4 
— 1. 45± . 60 
No. 7 
5-1-3-1-1-2 X 2-2-1-3-2-1 
-1.49± .21 
No. 28 
2-2-2-4-6-2 X 10-3-2-1-3-3.. 
— 1. 50± . 23 
No. 18 
2-2-2-4-6-2 X 5-1-3-3-1-2 
-1. 63=fc . 23 
1 Positive values are excess yields of the cross over the check; negative values are excess yields of the 
check over the cross. 
2 The drying samples for these crosses were lost. The differences between the harvest weights, multi- 
plied by 0.8, are shown for approximation. 
3 Pollen from plants of 7-4-1-? grown at Arlington Experiment Farm. 
