GRAIN-SORGHUM EXPERIMENTS IN OKLAHOMA. 
49 
Feterita has shown an ability to mature grain when seeded later 
than Dwarf Yellow milo, and it has possibilities as a crop to be seeded 
in July for grain. From these data feterita appears to be a consist- 
ent grain yielder and to be less influenced by droughty periods than 
milo. 
BLACKHULL KAOLIANG. 
Blackhull kaoliang has been sown in the date-of-seeding experi- 
ments on the same dates as feterita. The agronomic data recorded 
for this crop are shown in Table 20, and the grain yields are summar- 
ized in Table 21 for comparison with those of other varieties. 
The same difficulty has been found with Blackhull kaoliang as 
with feterita in obtaining stands. Under conditions when the 
stands are comparable this kaoliang produces fewer suckers than 
feterita. The length of the total growing period is practically the 
same, though feterita begins heading a few days earlier than this 
variety of kaoliang. 
Blackhull kaoliang sown on June 15 has made the highest grain 
yield, though in 1919 this may have been due to the better stand. 
It may be used as a late grain crop like feterita, though feterita 
probably will mature grain from later seedings. 
Table 20. — Agronomic data in the date-of-seeding experiments with Blackhull kaoliang at 
the Woodward Field Station for the years 1919, 1920, and 1921. 
[In the statement of yields per acre the bushel is rated at 53 pounds.] 
Row space. Length of period. 
Date of 
seeding. 
Plant. Stalk. £g£ 
9.32 
6.31 
6.20 
5.91 
5.41 
6.17 
1919: In. 
Apr. 30 100.72 
Mavll 23.3-5 
May 31 17.17 
June 14 8.00 
1920: 
Mayl 
May 17 
June l 
June 15. . . . 
July 1 
July 15 
1921: 
Apr. 30 13.04 
May 16 8.35 
June 1 
June 15 7.48 
Julyl 7.42 
July 15 (*) 
3 -rear average, 
1919 to 1921: 
Mayl 
May 15 
June 1 
June 15 
41. 03 
13. 67 
10.61 
7.13 
In. 
48.55 
13.08 
11.08 
6.65 
5.40 
4. 33 
4.19 
5.26 
5.12 
4.45 
7.47 
5.89 
6.34 
6.22 
6.18 
4.28 
20.48 
7.76 
7. 20 
6.04 
Fruit- 
ing. 
Total. 
Days. 
'85 
76 
65 
54 
78 
68 
61 
60 
62 
60 
77 
70 
64 
59 
59 
57 
Days. 
39 
34 
37 
39 
Days. 
124 
110 
102 
93 
Stalks 
per 
plant. 
31 
112 
99 
30 
91 
37 
97 
36 
98 
39 
99 
32 
109 
91 
101 
97 
105 
2.28 
2.02 
1.55 
1.20 
1.78 
1.46 
1.48 
1.12 
1.07 
1.39 
1.74 
1.42 
1. 33 
1.20 
1.20 
(2) . 
Stalks Height Grain 
Yields per acre. 
head- of 
ed. plants. 
P.ct. 
70.6 
91.7 
93.1 
91.9 
90.5 
92.4 
89.7 
92.5 
92.9 
87.0 
35 115 1.91 
31 103 1.63 
32 9 3 1.45 
39 97 1. 18 
Feet. 
5.8 
5.5 
5.3 
5.3 
6.5 
6.1 
6.3 
5. 6 
6.9 
5. 5 
in 
crop. Total 
P.ct. Lbs. 
37. 2 1, 013 
39.7 3.319 
39.0 3^431 
41.0 3,544 
97.9 
5.8 
95.1 
6.4 
95.7 
5.9 
97.4 
5.4 
91.1 
5.8 
( 2 ) 
4.5 
83.3 
6.0 
93.1 
6.0 
92.8 
5.8 
93.9 
5.4 
30.6 
3 3.3 
35.9 
34.1 
28.9 
30.3 
39.4 
39.4 
38.3 
39.7 
41.9 
34.9 
35. 7 
38. 5 
37. 7 
38.3 
3,675 
4,875 
5,150 
6,900 
6,900 
6,525 
5,250 
5,250 
5,925 
5,925 
4, 725 
3,938 
3,313 
4,481 
4,839 
5,458 
Grain. 
Lbs. 
377 
1,316 
1,339 
1,451 
1,125 
1,770 
1,830 
2,355 
1,995 
1,980 
2,070 
2,070 
2,255 
2.355 
1,980 
1,373 
1,191 
1,719 
1,821 
2,054 
Hush. 
6.5 
22.7 
23.1 
25.0 
19.4 
30.5 
32.1 
40.6 
34.4 
34.1 
35.7 
35. 7 
39.1 
40.6 
34.1 
23.6 
20.5 
29.6 
31.4 
35.4 
1 The July 15 so .ving was not fully ripe when harvested. 
- Stalks only counted for July 15 seeding, plants badly tangled. 
COMPARATIVE YIELDS IN DATE-OF-SEEDING EXPERIMENTS. 
Table 21 shows the annual and average acre yields from the dif- 
ferent dates of seeding for the five varieties which have been grown 
in these experiments for at least three years. The averages for three, 
five, and six years are computed where data are available. Dwarf 
