英文摘要 |
Artificial lighting in Horticulture is quite popular. Tubular fluorescent lamp is the most frequently used light source in tissue culture laboratories and the growth rooms of a greenhouse (for germinating large quantities of seeds). In terms of light level, different units are suitabale for different purposes. The photometric unit is for illumination and quantum unit is for photosynthesis related studies. There is also the radiometric unit which deals with the question of energy. The purposes of this study are first to collect commercially available tubular fluorescent lamps, then measure their spectral distributions and, lastly, derive lamp specific conversion factors among radiometric, photometric and quantum units. |