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

Thinning shoots in bagged raspberries

We thinned the shoots in the bagged raspberries to 4 to 5 shoots per container. All of the raspberries lived through the winter although one or two may need to be replaced in the future. The work is done for the project funded by the MDA Specialty Crop Block Grant program.

Jennifer Morganthaler holds up the bagged raspberry to show some of the roots growing through the bag.
Jennifer Morganthaler holds up the bagged raspberry to show some of the roots growing through the bag.
We thinned the primocane shoots to 4 to 5 strong shoots per bag.
We thinned the primocane shoots to 4 to 5 strong shoots per bag.
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Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 176
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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Raspberries in grow bags fertilized today

The raspberries in grow bags were fertilized today with 1 Tablespoon 14-14-14 Osmocote per bag. All plants survived the winter. Next week we will thin the shoots to 4 per bag and make an assessment of plant size at this point. Hopefully all bags will eventually have 4 primocanes per bag.

All bagged raspberries in the high tunnel trial survived the winter.
All bagged raspberries in the high tunnel trial survived the winter.
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Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 104
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 phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 24
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 phenology and GDD accumulation

We set the growing degree day (GDD) clock to ZERO today, April 1st, when we begin accumulating GDD base 50 from now on. April 1 is usually when grape buds begin to expand, although it can be earlier or later in any given year.\

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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Winter bud cold injury minimal

We checked 100 buds of each cultivar in the Foundation Vineyard after we experienced a low of minus 6.7 degrees in February. Cold injury was minimal.

Foundation Vineyard winter bud cold injury count – 100 bud samples

Cultivar % killed buds
Norton 1%
Vignoles 2%
Cahmbourcin 1%
Taminette 0%
Chardonel 6%
Cayuga White 4%

 

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