Energy biomass tree seedling production study. Progress report, January 1980-May 1980
Two lamp evaluation studies were conducted in the Geniponics system to determine the effect, if any, of various light treatments on tree seedling growth. A sixteen hour photoperiod followed by an uninterrupted eight hour dark period was utilized for this test series. Temperatures during the light period were held at 27/sup 0/C +- 1/sup 0/C. Carbon dioxide levels were maintained at 1500 parts per million during the light period. The tree seedlings were sub-irrigated with a high phosphate nutrient solution. Data was collected from twenty-five randomly selected seedlings from each of the replicated containers from each treatment. Heights were recorded to the nearest tenth of a centimeter. Root collar diameters, taken at media-atmosphere interface, were recorded to the nearest one-hundredth of a millimeter as measured with a Helios metric vernier caliper. Dry weights were recorded to the nearest ten-thousandth of a gram on a Sartorius 2003 MPI analytical recording balance. Light measurements were made with a Lambda Instruments LI-170 meter with quantum sensor.
- Research Organization:
- General Electric Co., Syracuse, NY (USA). Controlled Environment Agriculture Operation
- DOE Contract Number:
- AC02-78ET20606
- OSTI ID:
- 5199497
- Report Number(s):
- DOE/ET/20606-1
- Country of Publication:
- United States
- Language:
- English
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