Journal of Agricultural Research 
Vol. XI, No. 4 
138 
Table IV .—Type and variability of the erect - and declining-ear strains of Indian 
corn —Continued 
crop OP 1913 
Character and strain. 
Mean. 
Empir¬ 
ical 
mode. 
Standard devia¬ 
tion. 
Coefficient of varia¬ 
bility. 
Length of ear, in inches: 
Erect ears. 
6. 338 ±0.044 
6 - 5 
1. 3ii±o. 031 
20. 68±o. 51 
Declining ears. 
8.182 ± . 034 
8*5 
I. 277± . 024 
15. 6i±o. 30 
Circumference of ear, in 
inches: 
Erect ears. 
5. 205± .016 
O. 48o± .Oil 
9. 22±0. 22 
Declining ears. 
5. 969 ± .012 
6. 0 
0.437± • 008 
7- 3 2 ±°* r 4 
Weight of ear, in ounces: 
Erect ears. 
4- i .065 
4.0 
i- 543 ± - 04*5 
33. 8o±i. 12 
Declining ears. 
7. 661 ± . 050 
8.0 
i- 772 ± *035 
23. 13 ±0. 49 
Rows of kernels on ears: 
Erect ears. 
i 3 - 3 &o± .065 
12. 0 
1. 598 ± . 046 
11. 94 ±o. 35 
Declining ears. 
14- 3io± . 169 
14. 0 
1. 8n± . 119 
12. 6s±o. 91 
CROP OP 1914 
Length of ear, in inches: 
Erect ears. 
7. i97±o. 038 
7-5 
1. i98±o. 027 
16. 65±0.39 
Declining ears. 
6.849 ± .030 
7 - 5 
I. II2± . 022 
16. 24 ±0.32 
Circumference of ear, in 
inches: 
Erect ears... 
5 - 464 i *017 
5 -25 
0. 524± . 012 
9 - 59 °±°- 23 
Declining ears. 
5- 482 ± .013 
5 - 5 ° 
o.454± .009 
8. 281 ±0. 17 
Weight of ear, in ounces: 
Erect ears. 
6. 567 ± .057 
7.0 
1. 665 ± .041 
25.35±o. 66 
Declining ears. 
Rows of kernels on ears: 
6.145 ± .049 
6.0 
i- 555 ± *° 35 - 
25-3i±o. 61 
Erect ears. 
14. 796 ± .033 
14- 0 
1. 97o± . 023 
i 3 - 3 x 4 ± 0.16 
Declining ears. 
15. ioo± . 061 
14. 0 
1. 936± .043 
12. 821 ±0.30 
CROP OP 1915 
Length of ear, in inches: 
Erect ears. 
7 - 455 ±0. ° 3 ° 
8.0 
I. 220±0. 021 
16. 36±o. 29 
Declining ears. 
7. 2I2± .02 5 
7-5 
I. 020± . 0l8 
14. i 4 ±o. 25 
Circumference of ear, in 
inches: 
Erect ears. 
5. 728± . 012 
5 - 75 
0. 496± .009 
8. 66±o. 15 
Declining ears. 
5. 8$6± .012 
6. 00 
0.481 ± .008 
8. 22±o. 15 
Weight of ear, in ounces: 
Erect ears. 
7 - 449 ± .049 
8.0 
1. 889± .035 
25* 36±o. 50 
Declining ears. 
7 - 344 ± .044 
7.0 
1. 640 ± . 031 
22. 33±o. 45 
Rows of kernels on ears: 
Erect ears. 
14. 616 ± .044 
14. 0 
1. 768 ± . 031 
12. I0±0. 22 
Declining ears. 
14 - 9 3 °± .070 
14. 0 
2. n6± . 049 
14- 17 ±o -34 
