Greenhouse Experiment No. 1

Experiment No. 1 was conducted in tub growers in the research greenhouse.  Four tubs each of corn and beans were grown for 60 days to maturity for determining yields for both edible food (grams in wet weight) and plant materials (grams in dry weight).
 
 
 

  
Corn

Four tubs of Native American corn were planted and thinned to six plants per tub.  The mature corn was harvested at the end of a 60 day cycle.   

The corn plants were seperated into edible food parts by cutting and scraping the corn kernels from the cob to obtain their wet weight in grams.   

Plant materials were seperated, dried and weighed in grams. 
 
Exp. 1 
Corn:
Kernels 
grams
Cob 
grams
Stem 
grams
Leaf 
grams
Root 
grams
Tub 1 208.0 198.4 317.4 60.4
Tub 2 142.4 178.8 363.2 107.8
Tub 3 140.6 178.8 292.4 62.5
Tub 4 148.8 129.9 284.6 125.8

 
Beans

Anasasi vine green beans were planted in four tub growers, 6 plants in each tub, and were supported by string trellaces.   

The beans matured and harvesting began in the fifth week and continued for three weeks producing similar numbers.  The harvested fresh green beens were weighed (wet weight) after picking each day. 

After 60 days, the bean plant material was collected, dried and weighed in grams. 
 
Bean  
Summary
Tub 1 
grams
Tub 2 
grams
Tub 3 
grams
Tub 4 
grams
13-Sep 33.0 33.3 11.4 82.0
14-Sep 130.4 137.2 27.6 138.1
15-Sep 54.5 58.9 92.2 32.9
16-Sep 33.3 24.7 48.0 60.7
17-Sep 39.4 15.0 12.7 50.7
18-Sep 64.2 16.9 0.0 55.0
Total Wet 
Weight
354.8 286.0 191.9 419.4
  

 

 
 

 
Revised: 12 September 2000 
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Copyright © 2000 Institute of Simplified Hydroponics