Missouri State University
What's happening in the field?
At the Missouri State Fruit Experiment Station

Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 3276
http://agebb.missouri.edu/weather/reports/gddTable.asp

Phenology stages according to the Modified E-L system
http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

 

 

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Grape juice chemistry

Here is the juice analysis results from the berries taken YESTERDAY morning, September 24.

24-Sep-14
Cultivar ˚Brix pH TA g/100ml
Catawba W 17.5 3.20 1.180
Norton F 23.3 3.31 0.840

Due to problems with the pH meter, I think the pH results may be lower than actual. The TAs were determined by visual assessment of phenolpthalien color change rather than the neutral end point using the pH meter as is usually done.

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Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 3155
http://agebb.missouri.edu/weather/reports/gddTable.asp

Phenology stages according to the Modified E-L system
http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

 

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The Great Pumpkin

Logan Duncan, graduate student in Dr. Chin-Feng Hwang’s program, is working on a project cucurbita breeding. He harvested all sizes of pumpkins from his research planting but here we see the biggest one.

The group that harvested the giant pumpkins is from left to right: Randy Stout, Jeremy Emery, Logan Duncan, C. J. Odneal and Pragya Adhikari. Photo by Leslie Akers.
The group that helped to harvest the giant pumpkins is from left to right: Randy Stout, Jeremy Emery, Logan Duncan, C. J. Odneal and Pragya Adhikari. Photo by Leslie Akers.
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Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 3064
http://agebb.missouri.edu/weather/reports/gddTable.asp

Phenology stages according to the Modified E-L system
http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

 

Posted in Grapes, Phenology | Leave a comment