Table 4. Summary of data acquisition by wheat growth stage and sensor system 
for Kansas 
and North Dakota test sites, 1976 
  
Sensor System 
  
  
Test Site/ Wheat Landsat Aircraft Helicopter Truck 
Mission Date Growth Stage MSS Scanner Spectrometer Spectrometer 
Finney Co., Kansas 
Sept. 14-17, Pre-emergence X X X 
Oct. 2-6 Emergence X X X 
Oct. 20-23 Seedling X X X 
Nov. 11-12 Tillering X X X 
March 13-19, Tillering X X X 
March 30-April 2 Tillering X X X 
April 9-10 Jointing X 
April 18-21 Jointing X X X X 
April 27-28 Jointing X 
May 4-7 Pre-boot X X X X 
May 14-16 Boot X X 
May 24-27 Heading X X 
June 2-3 Milk X 
June 11-13 Dough X X X 
June 20-21 Ripening X X 
June 29-July 2 Mature X X X X 
July 18-19 Post-harvest X 
Williams Co., North Dakota 
May 25-28 Emergence X X X 
June 3-7 Seedling X X X 
June 12-15 Seedling X X 
June 21-24 Tillering X X X X 
June 30-July 3 Jointing X X 
July 9-12 Boot X X X X 
July 18-21 Heading X X X 
July 27-30 Headed X X X 
Aug. 5-8 Milk-Dough X X X 
Aug. 14-17 Ripening X X X X 
Aug. 23-26 Mature X X X 
Sept. 1-4 Post Harvest X X X