The plants this week are in the middle of the fastest phase of dry matter accumulation.   They are approaching the stage of maximum water use.  On a hot and windy day, the plants will use as much as 0.4 inches of water a day and on a hot calm day they'll use as much as 0.3 inches of water per day. 

Growing degree days for week of 6/7 - 6/13 = 149.5
Accumulated growing degree days (emergence to 6/13) = 1114.5

Merit 2-row Barley

Merit: 2-row spring barley.  Picture taken 6/14/99 at late boot stage.   Zadoks scale: 49, Feekes scale: 10, Haun scale: 10.1.  At this stage it is too late to use Tilt and/or Cerone on the barley.

Picture taken 6/14/99.  Developing head from Merit, 2-row spring barley, at late boot stage.  The tip of the awns on this head were approximately 1-2 inches from the flag leaf collar.

Whitebird Soft White Spring Wheat

Whitebird: soft white spring wheat..  Picture taken 6/14/99 at mid boot stage.  Zadoks scale: 41, Feekes scale: 10, Haun scale: 8.5.  A producer could still use Tilt and/or Cerone at this stage.

Picture taken 6/14/99.  Developing head from Whitebird, soft white spring wheat, at mid boot stage.  The tip of the awns on this head were approximately 2-3 inches from the flag leaf collar.

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