Oct. 22l 1917 Indirect Effects of Selections in Breeding Indian Corn 
hi 
Table II.— Type and 'variability of the four chemical-composition strains of Indian corn 
for 11 crops, IQ05 to IQ15 — Continued 
crop op 1910 
Character and strain. 
Length of ear, in inches: 
High-protein. 
Low-protein. 
High-oil. 
Low-oil. 
Circumference of ear, in 
inches: 
High-protein. 
Low-protein. 
High-oil. 
Low-oil. 
Weight of ear, in ounces: 
High-protein. 
Low-protein. 
High-oil. 
Low-oil. 
Rows of kernels on ears: 
High-protein. 
Low-protein. 
High-oil. 
Low-oil. 
Length of ear, in inches: 
High-protein. 
Low-protein.. 
High-oil. 
Low-oil. 
Circumference of ear, in 
inches: 
High-protein. 
Low-protein. 
High-oil. 
Low-oil. 
Weight of ear, in ounces: 
High-protein. 
Low-protein. 
High-oil. .. 
Low-oil... 
Rows of kernels on ears: 
High-protein.. 
Low-protein... 
High-oil. 
Low-oil. 
Mean. 
Em¬ 
pirical 
mode. 
Standard devia¬ 
tion. 
Coefficient of vari¬ 
ability. 
7. 771 ±0. 039 
8. 47 6 ± • 05 1 
7 - 3 * 5 ± *030 
8. 094 ± .034 
8. 0 
8-5 
7 - 5 
9.0 
I. 581 dbo. 027 
1. 6781b . 036 
I. 0191b . 021 
I. 2331b . 024 
20. 34zbo. 37 
19. 80 zb .44 
T 3 - 93 ± • 3 ° 
i 5 - 23 ± .31 
6. 0341b . 012 
6. 73o± . 016 
6. i04d= • 014 
6. 859 ± . 014 
6. 0 
6-5 
6. 0 
7.0 
. 4691b . 009 
. 546 ± . 012 
. 442 zb . on 
. 5 lOib . OIO 
7 - 77 ± ■ 13 
8. 12 zb . 17 
7 - 24 ± . 15 
7 - 43 ± . 15 
8. 415 ± ■ 07 1 
10. 036 dr . 090 
7. 600 dz . 061 
10. 986 ± . 090 
9.0 
11. 0 
7.0 
13. 0 
2. 835± .051 
3. 460dr . 090 
1. 9601b . 043 
3. 060± . 064 
33* 69 zb .67 
34 - 48 zb 1. 00 
25. 82 dz .61 
27. 8$zb .62 
1 3 - 345 i -039 
14. ii4± . 059 
14- 75 °± . 060 
13. 280± . 047 
14. 0 
14. 0 
14. 0 
12. 0 
I. 546zb . 028 
i- 995 ± -042 
i- 93 6 ± *042 
I. 672 zb .033 
11. 58 ± . 21 
14. 13 dr - 3 ° 
13- 13 ± *29 
14- 82 zb .30 
crop op 1911 
6. 302 ±0. 038 
7. 888 zb . 045 
6. 744± • 034 
6. 486zb . 039 
6. 5 
8-5 
6-5 
7.0 
1. 402 ±0. 027 
1. 411 zb . 032 
1. 2l6zb . 024 
1. 376± . 027 
22. 25±0. 45 
17- 89 zb .42 
18. 03 zb .37 
21. 2 I ± .43 
5 - 356 L .014 
6. 026dz . 014 
5. 769 ± • 014 
6*094 zb . 014 
5 - 5 
6. 0 
6. 0 
6- 5 
• 5io± . 010 
, 502 zb . 010 
. 504 zb . 010 
. 5i5zb . 010 
9. 52± . 19 
8. 96 zb . 19 
8. 74 i . 18 
8. 45 zb . 18 
4. 980 zb . 056 
8. 402 zb • 071 
6. 209 zb . 050 
6. 323 zb . 070 
5 * 0 
10. 0 
6. 0 
6. 0 
1. 854 zb . 040 
2. 336± .051 
. 1. 672 zb . 036 
2. 038 zb . 050 
37 * 2 4 zb .91 
27. 8ozb . 65 
26. 93=b .63 
32. 23zb .85 
12. 920zb . 046 
13. 70ozb . 052 
15- 35°± • 060 
12.721± . 060 
12. 0 
14. 0 
14. 0 
12. 0 
I. 541 dz .033 
1. 744 dz • 037 
1. 980 ± . 042 
1. 693 zb .043 
11. 93dz . 26 
10. 08 dz .22 
12. 89zb . 28 
i 3 - 3 i± -33 
