28 
Journal of Agricultural Research 
Vol. XXVII, No. I 
ing sugars were being completely oxidized to C 0 2 and H 2 0 . On the other 
hand, if 0 2 is not available, C0 2 will still be formed, as a result of anerobic 
respiration, or alcoholic fermentation, with a resulting formation of cer¬ 
tain products that give a bad flavor to the fruit. The normal oxidation 
of organic acids to C 0 2 and H 2 0 will also result in a respiratory ratio 
superior to i. 
Table VI. —Respiration of apples at 64.5° F, ( 18 0 C.) 
Ex¬ 
peri¬ 
ment 
No. 
Description of fruit. 
Weight 
of 
fruit. 
Run 
No. 
Length 
of run. 
Kilo¬ 
gram 
hours. 
1 
1 
1 
COs 
given 
off. 
! 
| co 2 
per 
kilo¬ 
gram 
hour. 
Vol¬ 
ume 
COa 
per 
kilo¬ 
gram 
hour. 
| Vol- 
| ume 
i O2 
per 
i kilo¬ 
gram 
hour. 
Res¬ 
pira¬ 
tion 
ratio 
COa. 
O2 
1 
Gm. 
Hours. 
Mgm. 
Mgm. 
Cc. 
! Cc. 
i 
1 
Rome Beauty; early pick. 
2,338 
1 
nVz 
167.6 
2, 947 - 7 
17. 6 
8.96 
7.88 
1.14 
(Sept. 14,) held at 32 0 in 
2 
93 X 
219.3 
4, 292. 3 
19. 6 
9 - 98 
9 - 51 
1. 05 
unwrapped box until 
3 
94 X 
221. 5 
4 . 077 - 0 
18.4 
9-37 
8. 28 
1. 13 
Dec. 18. 
2 
Rome Beauty; fruit similar 
2,240 
I 
71 
159.0 
1, 711. 5 
10. 8 
5 * 50 
to experiment 1; lightly 
2 
93A 
209.6 
1, 994. 2 
9. 5 
4- 84 
coated with mineral oil. 
3 
9 S l A 
213-4 
1, 844. 7 
8.6 
4.38 
4-33 
1. 01 
3 
Rome Beauty; similar to 
2, 2l8 j 
1 
70X 
156.4 
2,646.3 
16. 9 
8. 60 
7 - 70 
1. 12 
experiments 1 and 2 ex¬ 
2 
93 X 
207.9 
3, 828. 0 
18.4 
9-37 
9.38 
1. 00 
cept held in oiled paper 
i 
3 
95 X 
212.4 
3 , 728. 3 
17.5 
8.91 
8.85 
1. 01 
wraps. 
I 
4 
Rome Beauty; late pick 
2,471 ; 
1 
69X 
170.9 
2, 253. 6 
13- 2 
6. 71 
5.27 
1. 28 
(Oct. 17); well colored 
i 
2 
94 ^ 
233-5 
3,443 3 
14. 7 
7.48 
7.41 
1. 01 
and rather soft 
3 
96 X 
238.5 
3 , 492 . 3 
14.6 
7-43 
7.40 
1. 00 
5 
York Imperial; from oil 
2,5691 
i 
1 
76 
195.3 
2, 553.5 
13.0 
6. 62 
paper wrapped box held 
2 
94 tt 
243.8 
2, 954 - 0 
12.1 
6.16 
5.17 
1. 19 
at 32 0 F. 3 months. 
1 
t 
3 
116K 
298.9 
3 , 359 - 8 
11. 2 
5 - 70 
564 
1. 01 
6 
York Imperial; similar to 
2,528 j 
1 
96 X 
244.6 
2,180. 4 
8.9 
4 - 53 
3 - 58 
1. 21 
experiment 5, but oil 
2,404 ; 
2 
95 H 
228.8 
i, 841. 6 
8.05 
4. 10 
3- 08 
i. 33 
coated when put in32° 
3 
116K 
280. 1 
r, 949.1 
6. 9 
3 - 51 
3- 62 
•99 
storage. 
! 
I 
7 
York Imperial; similar to 
2,580 | 
1 
96 K 
249.0 
3 , 363- 7 
1 3-5 
6. 87 
6-93 
.99 
experiments 5 and 6, 
| 
2 
95 X 
246. 0 
2, 893.2 
11. 8 
6. 01 
5 - 5 i 
1.09 
held inordinary wrapped 
| 
3 
117X 
301. 2 
3 , 327 . 1 
11. 0 
5- 60 
5 . 78 
•97 
box. 
i 
8 
York Imperial; barrel 
2, 609 i 
1 
96 l A 
251.8 
3 , 315 - 7 
13- 2 
6. 72 
6.61 
1. 01 
storage. 
1 
2 
95 & 
248.9 
2, 695. 8 
10. 9 
5 - 55 
5 - 34 
1. 04 
i 
3 
116X 
304- 6 
3 , 289. 0 
10. 8 
5 - 50 
5-37 
1. 02 
9 
York Imperial; unwrapped 
2,667 
1 
96 H 
256.5 
3 , 274- 9 
12. 8 
6. 52 
6. 53 
1. 00 
box storage. 
j 
2 
95 U 
255.8 
2, 942. 1 
11.1 
5 - 65 
5 - 39 
1. 05 
3 
116H 
294. 7 
3 . 352 . 8 
11. 4 
5- 80 
5 - 85 
•99 
10 
Winesap; held 3 months at 
2. 709 j 
1 
98 
265. 5 
4, 240. 9 
16. 0 
8.14 
8.20 
•99 
32 0 F.; unwrapped box. 
| 
2 
116M 
3153 
5 , 372 . 8 
17. 0 
8. 65 
8. 04 
1. 07 
11 
Winesap; similar to exper¬ 
2, 606 j 
1 
97 X 
254.1 
2, 756 . 3 
10. 8 
5 . 50 
5. 16 
1. 07 
iment 10, but oil-coated 
2 
117 
305.1 
3 , 308. 4 
10. 8 
5 - 50 
4 - 5 i 
1. 22 
when removed to 64.5 0 F. 
j 
12 
Winesap; fruit paraffin- 
2, 298 1 
1 
98K 
226.4 
2,172. 6 
9.6 
4.89 
4.48 
1.09 
coated when put in at 
j 
2 
116K 
266. 1 
2, 776 . 4 
10.4 
5 . 29 
4. 27 
1. 24 
13 
Winesap; held in wrapped 
2,723 ! 
1 
96X 
262.1 
4.184. 7 
16. 0 
8.14 
8.07 
1. 01 
box; no treatment. 
j 
2 
118X 
323.4 
5 . 439 - 0 
16.8 
8. 55 
7. 82 
1.09 
Table VII .—Composition of intercellular atmosphere of Rome Beauty apples held at 
64.5 0 F. ( 18 0 C.) 
Res¬ 
piration 
experi¬ 
ments 
No. 
Description of fruit. 
CO,. 
COS. 
Per cent 
Ns by 
difference. 
1 
Early pick, untreated. 
Per cent. 
4-95 
15-8 
6.8 
Per cent. 
14.7 
1, 0 
80 . 3 s 
82.2 
2 
Early pick, oil coated. 
A 
Late pick, colored ripe. 
• y 
15-5 
77-7 
T 
