no 
Journal of Agncultural Research 
Vol. XI, No. 4 
Table II .—Type and variability of the four chemical-composition strains of Indian corn 
for n crops , IQ05 to IQ15 —Continued 
crop of 1908 
Character and strain. 
Mean. 
Em¬ 
pirical 
mode. 
Standard devia¬ 
tion. 
Coefficient of vari¬ 
ability. 
Length of ear, in inches: 
High-protein. 
7. 625±o. 035 
7-5 
1.19S ±0. 02 S 
IS- 67d:0. 34 
Low-protein. 
8. 496 ± .040 
9.0 
1. 3 6 3± • 028 
16. 04± .34 
High-oil. 
7 - 334 ± .027 
7*5 
. 983 d: -019 
13. 4°± -27 
Low-oil. 
8.194^ . 041 
8.0 
1. 407 i *029 
17. i7± .36 
Circumference of ear, in 
inches: 
High-protein. 
5 * 45 2 ± .014 
5*5 
. 46o± . 010 
8.44d= . 18 
Low-protein. 
6. 338^ .015 
6. 2 
• 490± .011 
7 - 7 6 ± . 17 
High-oil. 
5 - 774 ± • 012 
6. 0 
. 438 ± .009 
7 - 59 ± • 15 
Low-oil. 
6. 3361b . 016 
6. 5 
. 548db • 012 
8.6s± .18 
Weight of ear, in ounces: 
High-protein. 
6. 301 ± .058 
6.0 
1. 8o4± . 041 
28.63 d: .65 
Low-protein. 
9.783 d: .077 
10. 0 
2. 288d: . 054 
23.39i.59 
High-oil. 
7- 566 rb . 046 
8.0 
1. 6i6± .033 
2 i- 3 6 ± -47 
Low-oil. 
9 - 944 ± *089 
11. 0 
2.9351b .063 
29. 52 d: .68 
Rows of kernels on ears: 
High-protein. 
13. 2761b .052 
14. 0 
I. 631 d: .037 
12. 27d: • 28 
Low-protein. 
I 3- 984di .050 
14. 0 
1. 606d: .035 
11. 5idb • 26 
High-oil. 
Low-oil. 
15. oiodi . 056 
12.3261b .050 
14. 0 
14. 0 
1. 970d: . 040 
1. 591 dz .035 
13. 12 d: .27 
12. 90d: .30 
CROP OF 1909 
Length of ear, in inches: 
High-protein. 
7. 680dio. 035 
7-5 
1. I27d:0. 025 
i 4 - 67±°-35 
Low-protein. 
7- 672 ± .034 
8. 0 
I. 22id: . 024 
i 5 - 9 *± - 3 ® 
High-oil. 
7.0501b .031 
7.0 
I. 1401b . 022 
16. i7± .32 
Low-oil. 
7. 748db • 028 
8.0 
I. 123 d: • 020 
14- 49 i • 2 7 
Circumference of ear, in 
inches: 
High-protein... 
5.693 d: .013 
5 - 75 
• 4241b .009 
• 7 - 45 ± -17 
Low-protein. 
5. 967 d: .015 
5*75 
. 56od: . on 
9.38 ± . 19 
High-oil. 
5-9*4± .013 
6. 00 
. 489 d: . 009 
8. 27± . 16 
Low-oil. 
6. 66od: . 013 
6. 50 
‘ 5 I 7 ± • °°9 
7 - 7 < 5 ± • 15 
Weight of ear, in ounces: 
High-protein. 
6. 982 d: .054 
7.0 
1. 694± .039 
24. 26d: . 60 
Low-protein. 
7- 005 d: .068 
7.0 
2. 407 db .048 
34 - 36 d= 1. 08 
High-oil. 
6. 837d: .052 
7.0 
1. 88o± .037 
27. 5o± . 82 
Low-oil. 
9.244± .059 
9.0 
2. 275d: .042 
24. 61 d: 48 
Rows of kernels on ears: 
High-protein.. 
13. 020d: .050 
12. 0 
554 ± • 035 
11.93d: .28 
Low-protein. 
13-789^ *048 
14. 0 
1. 57 *± • °34 
n. 39 ± * 2 7 
High-oil. 
14. 77 °± • ° 5 ! 
14. 0 
1. 758 ± .036 
11. 9°d: .25 
Low-oil. 
12. 8o6d: . 042 
12. 0 
1. 593 ± -° 3 ° 
12. 44d: . 24 
