128 
• Journal of Agricultural Research 
Vol, XI, No. 4 
Table III .—Type and variability of the two-ear strains of Indian corn —Continued 
LOWER-EAR PLOT, CROP OP 1911 
Character and strain. 
Mean. 
Empir¬ 
ical 
mode. 
Standard devia¬ 
tion. 
Coefficient of varia¬ 
bility. 
Length of ear, in inches: 
Single ears. 
Upper ears. 
6. 462 ±0.087 
5 - 35 8 =b • 091 
i* 357io. 062 
1. 35 8 ± *°6s 
21. 00±I. OO 
2 5 - 3 S±i- 3 ° 
Lower ears. 
D 0 
5-5 
Circumference of ear, in 
inches: 
Single ears.. 
Upper ears. 
5. 790 ± . 078 
5. 2i6± .091 
6. 0 
e. 2C 
• 53 2 ± -056 
. 561 ± .065 
9.19 ± . 50 
10. 75± .65 
Lower ears. 
Weight of ear, in ounces: 
Single ears.. 
Upper ears. 
6. 18 ± . 170 
4- 04 db . 130 
6. 0 
I. 764^; . 120 
I. 677 ± . 089 
28.5 ±1.4 
41-S ± 2 -6 
Lower ears. 
3 - 0 
CROP OP 1912 
Length of ear, in inches: 
Single ears. 
7. 056 ±0.048 
7-5 
1. 233 ±0.034 
17. 47 ±0.49 
Upper ears. 
7. 25o± . 066 
7.0 
1. 900± . 047 
26. 21 ± .67 
Lower ears. 
6.176^ . 075 
6.5 
2. ioo± . 053 
34. oo± .84 
Circumference of ear, in 
inches: 
Single ears. 
5.853 d: .020 
6. 0 
. 523 ± .014 
8.94± . 24 
Upper ears. 
5. 7oo± . 015 
5 * 75 
.4171b -OlO 
7 * 3 2 ± • *9 
Lower ears. 
5. 427^ .014 
5*5 
.392± . 010 
7. 22 ± . 19 
Weight of ear, in ounces: 
Single ears. 
7. 004 ± . 088 
6. 0 
2. 053 ± . 062 
29. 3i± .96 
Upper ears. 
6. 429 ± • 052 
6. 0 
I. 406± . O37 
21. 87± .65 
Lower ears. 
4 - 977 i .052 
5 *o 
1. 245± .037 
25. 02 ± .79 
Rows of kernels on ear: 
Single ears. 
16. 560 ± . 088 
16. 0 
2. 2I2± . 062 
i 3 - 6 idb *39 
Upper ears. 
15* 5 6 ° ± . 069 
16. 0 
I. 990 ± . O49 
12. 79± .32 
Lower ean>. 
15. 822 ± • 023 
16. 0 
1. 87o± . 016 
11. 82 ± .10 
CROP OF 1913 
Length of ear, in inches: 
Single ears. 
Upper jears. 
Lower ears. 
Circumference of ear, in 
inches: 
Single ears. 
Upper ears. 
Lower ears. 
Weight of ear, in ounces: 
Single ears. 
Upper ears.. 
Lower ears. 
Rows of kernels on ears: 
Single ears. 
Upper ears. 
Lower ears. 
6. 202 ±0. 061 
6. 0 
1. 394 ±o. 043 
6. 741 ± . 064 
6.5 
1. 238± . 046 
5. 192 ± .069 
5 *o 
1. 257± .049 
S- 3 S 9 ± • ° 2 5 
5 *o 
. $8i± . 018 
5. 374 ± .028 
5 - 5 
. $28± . 020 
4. 844± . 025 
4 . 75 
• 454 ± .018 
5. qo8± .093 
6. 0 
1. 641 ± . 066 
5. 28o± . 083 
5 *o 
1. 4ii± .059 
3.6ss± .093 
3 *o 
1. I73± . 060 
16. 19 ± . 13 
16. 0 
2. 486± . 089 
16. 10 ± . 13 
16. 0 
2. 252± . 090 
15.42 ± . 15 
14. 0 
2. 07 ± . 10 
22. 48± o .‘75 
18. 37 ± .72 
24. 2 ±1.0 
10. 84 ± .35 
9-82± .39 
9* 37i -39 
27.8 ±1.3 
26. 7 ±1. 2 
32.1 ±1.8 
*5-35± -58 
I 3*99± • $8 
13* 4 2 ± .69 
