28 
BULLETIN 1248, U. S. DEPARTMENT OF AGRICULTURE. 
Table 11. — Comparative and average yields from Charles Downing and Russet 
Burbank potato sets of different sizes at Jerome, Idaho, in 1916 and 1917. 
Weight 
of 
set. 
Yields per acre, 1916. 
Yields per acre, 1917. 
Average yields per acre, 
1916 and 1917. 
Variety and 
Yield of 
Yield of 
Yield of 
kind of set 
planted. 
Primes. 
Culls. 
primes. 
Culls. 
primes. 
Primes. 
Culls 
primes. 
Ac- 
tual. 
Net. 
Ac- 
tual. 
Net. 
Ac- 
tual. 
Net. 
CHARLES 
DOWNING. 
Per 
Per 
Per 
Whole: 
Ozs. 
Bus. 
Bus. 
cent. 
Bus. 
Bvs. 
Bits. 
cent. 
Bus. 
Bus. 
Bus. 
cent. 
Bus. 
1-ounce 
1 
274.8 
71.2 
79.4 
263.5 
146.0 
48.0 
75.3 
134.7 
210.4 
59.6 
77.9 
199. 1 
2-ounce 
2 
226.2 
104.7 
79.2 
203.5 
184.7 
61.6 
75.0 
162.0 
205.5 
83.1 
71.2 
182. v 
3-ounce 
3 
253.7 
152.7 
62.4 
219.7 
195.0 
80.2 
70.9 
161.0 
224.4 
116.4 
65.8 
190.4 
4-ounce 
4 
219.8 
151.5 
59.2 
174.5 
224. 5 
89.3 
71.5 
179.2 
222.2 
120.4 
64.9] 
17o. 8 
5-ounce 
5 
283.7 
167.9 
62.8 
227.0 
203.5 
80.9 
71.6 
146.9 
243.6 
124.4 
66.2 
186.9 
6-ounce 
6 
260.5 
164.9 
61.2 
192.2 
199.7 
86.7 
69.7 
131.7 
230.1 
125.8 
64.6 
162.1 
Halved : 
2-ounce 
1 
243.2 
58.6 
80.6 
231.9 
173. 9 
45.7 
79.2 
162.6 
208.6 
62.1 
80.0 
197.3 
3-ounce 
1* 
271.8 
76.8 
78.0 
254.8 
186.0 
51.4 
78.4 
169.0 
228.9 
64.1 
78.1 
211.9 
4-ounce .. 
2 
282.8 
91.5 
75.6 
260.1 
195.5 
57.1 
77.4 
172.8 
239.2 
74.3 
76.3 
216.5 
5-ounce 
2§ 
295.3 
96.2 
75.4 
267.0 
189.8 
58.6 
76.4 
161.5 
242.6 
77.4 
75.8 
214. 3 
6-ounce 
Quartered: 
3-ounce 
3 
270.9 
103.7 
72.3 
236.9 
207.7 
55.8 
78.8 
173.7 
239.3 
79.8 
75.0 
205.3 
3 
262.8 
47.6 
84.7 
254.3 
181.2 
43.2 
80.7 
172.7 
222.0 
45.4 
83.0 
213.5 
4-ounce 
1 
260.3 
59.0 
81.5 
249.0 
169.7 
38.9 
81.3 
158.4 
215.0 
48.9 
81.5 
203. 7 
5-ounce 
l\ 
262.7 
61.6 
81.0 
248.5 
162.8 
37.5 
81.2 
148.6 
212.8 
49.5 
81.1 
198.6 
6-ounce 
H 
245.0 
62.8 
79.6 
228.0 
165.4 
38.3 
81.2 
148.4 
205.2 
50.6 
80.2 
188.2 
RUSSET 
BURBANK. 
Whole: 
l-ounce 
1 
243.3 
36.8 
86.9 
232.0 
214.8 
56.1 
79.3 
203.5 
229.1 
46.5 
83.1 
217.8 
2-ounce 
2 
241.7 
59.4 
80.3 
219.0 
278.2 
51.6 
84.4 
255.6 
260.0 
55.5 
82.4 
237.2 
3-ounce 
3 
236.2 
79.7 
74.8 
202.2 
336.3 
75.2 
81.7 
302.3 
286.3 
77.5 
78.7 
252.2 
4-ounce 
4 
307.0 
93.3 
76.7 
261.6 
304.9 
82.5 
78.7 
259.5 
306. 
87. S 
77.7 
260.6 
5-ounce 
5 
250.1 
100.6 
71.3 
193.4 
320.4 
94.6 
77.2 
263.7 
285.3 
97.6 
74.5 
228.6 
6-ounce 
6 
293.3 
86.7 
77.2 
225.2 
289.5 
86.4 
77.0 
221.4 
291.4 
86.6 
77.1 
223.3 
Salved: 
2-ounce 
1 
248.6 
38.2 
86.7 
237.3 
226.4 
38.8 
85.4 
215.1 
237.5 
38.5 
86.0 
226.2 
3-ounce 
n 
269.1 
41.4 
86.6 
252.1 
254.1 
52.1 
83.0 
237.1 
261.6 
46.7 
84.S 
244. 6 
4-ounce .. 
2 
248.6 
45.2 
84.6 
225. 9 
242.0 
63.0 
79.4 
219.3 
245. 3 
54.1 
81.9 
222. 6 
5-ounce 
2£ 
216.8 
67.4 
76.3 
188.4 
280. C 
66.2 
83.3 
251.6 
248.4 
61.8 
80.1 
220.0 
6-ounce 
Quartered: 
3-ounce 
3 
252.1 
62.6 
80.1 
218.1 
262.9 
69.9 
79.0 
228. 9 
257.5 
66.3 
79.5 
223.5 
3 
240. 5| 38.0 
86.4 
232.0 
240.5 
24.6 
90.7 
232.0 
240.5 
31.3 
88.5 
232.0 
4-ounce. _. 
1 
200. 46. 2 
81.2 
188.7 
233.6 
29.1 
88.9 
222.3 
216.8 
37.7 
85.3 
205. 5 
5-ounce.. . 
H 
253. 3 1 42. 7 
85.6 
239.4 
221.6 
33.9 
86.7 
207.4 
237. 5 
38.2 
86. 1 
223.4 
6-ounce 
li 
243. 5j 41.9 
85.3 
226.5 
229.4 
37.4 
85.9 
212.4 
236.5 
39.7 
85.6 219.5 
Table 12. — Comparative yields of prime and cull potatoes from whole and cut sets 
of equal weight in Virginia, Maine, Colorado, and Idaho. 
Weight 
ofset. 
Grade of 
tubers. 
Average yields (bushels) . 
1915tol918; 
Irish Cobbler. 
1917 
and 
1918, 
Presque 
Isle, 
Me.; 
Green 
Moun- 
tain. 
1916 and 1917. 
All data. 
Kind of set 
planted. 
Nor- 
folk, 
Va. 
Presque 
Isle, 
Me. 
Greeley, 
Colo.; 
Rural 
New 
Yorker 
No. 2. 
Jerome, Idaho. 
Sep- 
arate. 
Charles 
Down- 
ing. 
Russet 
Bur- 
bank. 
Total. 
1 -ounce, whole. . 
Ounces. 
1 
1 
1 
M. 
11 
2 
2 
3 
8 
/Primes 
271.8 
18. 1 
251.9 
20. 2 
270.8 
9.5 
291.3 
23. 5 
273. 3 
28. 3 
324.8 
29.8 
305. 2 
27.8 
323. 8 
36. 6 
302.4 
36.7 
210.4 
59.6 
208.6 
52. 1 
215. 
48. 9 
228.9 
64. 1 
205.2 
50. 6 
205. 5 
53. 1 
239. 2 
7 1. 3 
224. 4 
116.4 
239. 3 
79. 8 
232. 6 
46.5 
237. 5 
38.5 
216.8 
37. 1 
261.6 
46.7 
236. 4 
39.7 
259. 9 
56. 6 
245. 3 
54. 1 
286. 2 
77.5 
257. 5 
66 8 
238.3 
41.4 
226.9 
44.3 
237.2 
39.6 
253.5 
52. 2 
239. 6 
67.4 
249. 1 
78.0 
258.6 
67.4 
264.9 
96.0 
253. 9 
80 
\ 279. 7 
\Culls 
2-ounce, halved . 
4-ounce, quar- 
tered. 
3-ounce, halved. 
•'.-ounce, quar- 
1 ered. 
2-ounoe, whole.. 
(•ounce, halved 
3-ounce, whole 
. halved 
/Primes 
\Culls 
/Primes 
\Culls 
/Primes 
\Culls 
/Primes 
(Culls 
/Primes 
U'ulls 
/Primes 
ICulls 
/Primes 
ICulls 
/Primes 
(Culls 
192.9 
26.4 
234.7 
45. 7 
244.2 
51.9 
232.7 
47. 1 
220. 6 
69. 8 
258. 2 
57. 
253. 3 
81.5 
255.8 
65.6 
296.4 
69.2 
288.6 
48.0 
299.8 
82.9 
272.0 
62. 5 
301. 1 
L08. 8 
313.9 
100. 4 
304.8 
138. 1 
288.1 
129.5 
173. 8 
59.3 
197.6 
48.6 
195.4 
71.0 
217.8 
84.7 
182.6 
121.3 
189. 7 
91.0 
196. 9 
125.8 
180. 6 
LOLA 
} 271.2 
} », 
} 305. 7 
| 307.0 
} 327. ! 
| 326.0 
| 360.9 
} 833.9 
