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Headspace composition |
Table 1. Headspace composition, pressure and volume of two container types, containing 10 Prunus shootlets in stage II. Type 1 consists of a Meli-jar with nick and a PP screw on lid with sample device (closure). A type 4 container consists of a Meli-jar with sampling device (body), a rubber ring and a PP-membrane pressed together with a clamp system.
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Parameter |
Type |
time (days in culture) |
||||
|
1. Headspace composition |
- |
2 |
7 |
16 |
21 |
28 |
|
[CO2] (%) |
1 |
0.374 |
0.718 |
1.728 |
2.425 |
1.615 |
|
4 |
2.022 |
3.738 |
6.787 |
8.149 |
6.58 |
|
|
[CO2 + Ar] (%) |
1 |
22.11 |
21.98 |
21.05 |
20.56 |
21.93 |
|
4 |
19.49 |
14.83 |
8.376 |
4.318 |
6.471 |
|
|
[N2] (%) |
1 |
77.52 |
77.30 |
77.22 |
77.02 |
77.30 |
|
4 |
78.14 |
81.43 |
84.84 |
87.53 |
86.95 |
|
|
[Ethylene] (ppm) |
1 |
0.134 |
0.159 |
0.104 |
0.135 |
0.131 |
|
4 |
0.440 |
0.674 |
1.10 |
2.14 |
1.32 |
|
|
2. Pressure (Pa) |
Atm. |
102906 |
102325 |
102858 |
103458 |
103092 |
|
1 |
102906 |
102325 |
102858 |
103458 |
103092 |
|
|
4 |
101906 |
100649 |
98710 |
98748 |
98648 |
|
|
3. Container volume (ml) |
1 |
282 |
282 |
282 |
282 |
282 |
|
4 |
281 |
272 |
265 |
265 |
264 |
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