Blue Berry Chilling Hours - Ask Extension
Hello again, I have attached some figures below from a data logger. The manufacture can not help me to work out the Chilling hours between the dates o...
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Blue Berry Chilling Hours #165592
Asked January 30, 2014, 2:24 PM EST
Hello again, I have attached some figures below from a data logger. The manufacture can not help me to work out the Chilling hours between the dates on the data. I am surprised since they created the device and the soft ware. can you help me work it out please, thank you.
1
S/N 611356
Type TGU-4500
Description Cal Run
Property Temperature
Logging Started 12 Sep 2012 09:19:05
Logging Ended 22 Feb 2013 15:49:00
Logging Duration 163 days 6 hours 29 minutes 54 seconds
Offload Operator Laurence Tree
Trigger Start No
Start Delay 0 second
Interval 15 minutes
Stop Mode When full
Run Id 6zkr kjc1 poq1
Last Calibrated 7 Apr 2011 Calibration Agency Manufacturer
Offload Time 24 Mar 2013 15:53:04 Number of Readings 15675
Stop Reason Still Logging
Logging Mode Minutes Mode
Statistics Start Time 14 Nov 2012 20:03:11
Statistics End Time 22 Feb 2013 15:49:00
Minimum Reading -3.6 °C
Maximum Reading 28.4 °C
Average Reading 6.4 °C
Mean Kinetic Temperature 7.3 °C
Time above 1.7 °C 86 days 18 hours 48 seconds
Area above 1.7 °C 11791.2 °C hour
Time below 1.7 °C 13 days 1 hour 45 minutes
Area below 1.7 °C 537.4 °C hour
Time above 7.2 °C 45 days 15 hours 30 minutes 48 seconds
Area above 7.2 °C 2774.9 °C hour
Time below 7.2 °C 54 days 4 hours 15 minutes
Area below 7.2 °C 4697.8 °C hour
1
S/N 611356
Type TGU-4500
Description Cal Run
Property Temperature
Logging Started 12 Sep 2012 09:19:05
Logging Ended 22 Feb 2013 15:49:00
Logging Duration 163 days 6 hours 29 minutes 54 seconds
Offload Operator Laurence Tree
Trigger Start No
Start Delay 0 second
Interval 15 minutes
Stop Mode When full
Run Id 6zkr kjc1 poq1
Last Calibrated 7 Apr 2011 Calibration Agency Manufacturer
Offload Time 24 Mar 2013 15:53:04 Number of Readings 15675
Stop Reason Still Logging
Logging Mode Minutes Mode
Statistics Start Time 14 Nov 2012 20:03:11
Statistics End Time 22 Feb 2013 15:49:00
Minimum Reading -3.6 °C
Maximum Reading 28.4 °C
Average Reading 6.4 °C
Mean Kinetic Temperature 7.3 °C
Time above 1.7 °C 86 days 18 hours 48 seconds
Area above 1.7 °C 11791.2 °C hour
Time below 1.7 °C 13 days 1 hour 45 minutes
Area below 1.7 °C 537.4 °C hour
Time above 7.2 °C 45 days 15 hours 30 minutes 48 seconds
Area above 7.2 °C 2774.9 °C hour
Time below 7.2 °C 54 days 4 hours 15 minutes
Area below 7.2 °C 4697.8 °C hour
County Outside United States
Expert Response
It looks like if you subtract the time below 1.7 from the time below 7.2 the result will be the time between 1.7 and 7.2. Chilling hours and Chilling units are similar. I often use hours directly. Time spent much above 7.2 can reverse the process and it looks like you got some pretty High temperatures.I am not sure what the relationship is between time and area in this data. You should probably convert days to hours for your calculation.I calculate 1000 hours and if that is enough would depend on the variety
