144 
Journal of Agricultural Research 
Vol. XI, No. 4 
Table V .—Type and variability of high- and low-ear strains of Indian corn —Continued 
crop OF 1913 
Character and strain. 
Mean. 
Empir¬ 
ical 
mode. 
Standard devia¬ 
tion. 
Coefficient of varia¬ 
tion. 
Length of ear, in inches: 
High ears. 
6. 107 ±0. 037 
6. 362 ± . 032 
5. 895 ± .017 
6. 093 ± .017 
6. 224± . 068 
6. 2$o± . 057 
17.1901b . 076 
18. 8$4± ■ 089 
6 . 5 
1. l57=bo. 026 
18. 95 ±0.44 
Low ears. 
6. 5 
X. 172 ± . 023 
18. 42± -37 
Circumference of ear, in 
inches: 
High ears. 
6. 0 
.$29± .012 
8. 97 ± .21 
Low ears. 
6. 0 
. 66o± . 012 
10. 831b • 21 
Weight of ear, in ounces: 
High ears. 
6. 0 
2. 008i . 048 
32. 26± . 84 
Low ears. 
6. 0 
1.9421b .040 
31. o7± .69 
Rows of kernels on eark: 
High ears. 
16. 0 
2.o8o± .054 
12. 10 ± . 32 
Low ears. 
18. 0 
2. 5761b .063 
13. 663 ± .34 
crop of 1914 
Length of ear, in inches: 
High ears. 
5.581 ±0.035 
6. 4io± . 030 
5. 594 ± -017 
5. 992 ± .014 
5 - 49 i i • °53 
6.105 ± .047 
16. 35o± .075 
18. 992 ± .075 
6. 5 
1.149 ±o- 025 
20. 588 ±0. 46 
Low ears. 
7 * 0 
1.1831b . 022 
18.4561b -35 
Circumference of ear, in 
inches: 
High ears. 
5 - 75 
. 536± .012 
9- 5821b .22 
Low ears. 
6. 0 
. 540± . 009 
9. 0I2± , 17 
Weight of ear, in ounces: 
High ears. 
5 * 0 
1. 605 ± .038 
29. 230J: .35 
Low ears... 
6. 5 
1. 669 ± .033 
27. 338^ .35 
Rows of kernels on ears: 
High ears... 
16. q 
2.0981b .053 
12.8321b .33 
Low ears. 
18. 0 
2. 5io± .053 
13. 2161b . 28 
CROP OF 
1915 
Length of ear, in inches: 
High cars . 
6. 693 ±0. 034 
7 * 3 2 5 ± • ° 3 2 
5.9631b .015 
6. 7871b .017 
6. 991 ± .063 
9. 34 I ± .065 
17. 328± .072 
19. 992 ± .084 
6. 5 
1.137 ±0.024 
16. 990 ±0. 37 
Low ears. 
8.0 
1.1511b .023 
15. 7io± .33 
Circumference of ear, in 
inches: 
High ears. 
6, 0 
.4861b .011 
8.1501k . 18 
Low ears. 
6. 75 
. 590± . 012 
8. 69o± . 17 
Weight of ear, in ounces: 
High ears. 
8.0 
1.9461b .045 
27. 840± . 69 
Low ears. 
10. 0 
2. 1781b . 046 
23. 320± . 53 
Rows of kernels on ears: 
Hi oh ears. 
16. 0 
2. 28o± . 051 
13.150J1 .30 
T .nw ears. 
20.0 
2. 874± .059 
14. 3801b .3° 
CROP OF 1916® 
Length of ear, in inches: 
High ears.. 
5. 399 ±o. 039 
5-5 
1.147 ±0.028 
21. 24±o. 54 
Circumference of ear, in 
inches: 
High ears^. 
5.178'db • 014 
5 * 2 5 
. 465 ± .010 
8. 991b . 20 
Weight of ear, in ounces: 
Hish ears. 
4. 22I± . 058 
16. 631 dz . 090 
4.0 
1. 5ii± . 041 
35 - 79± I -°9 
Rows of kernels on ears: 
High ears. 
16.0 
2.075± .063 
12. 48± .39 
a No data on low ears in 1916. 
