Articles
INTERACTION OF LAMP TYPES AND IRRADIANCE ON THE GROWTH OF TOMATO PLANTS
Article number
128_11
Pages
109 – 116
Language
Abstract
Young tomato plants were subjected to various lamp types and irradiance levels at different natural light conditions in the winter.
Influorescent, high pressure mercury halide, and high pressure sodium lamps were compared.
Best growth was obtained with warm white fluorescent light and poorest growth with high pressure sodium.
The difference between the lamps was largest at lower irradiance levels.
It decreased by rise in irradiation.
The natural light conditions had a larger influence on plant growth by the use of high pressure sodium lamps than by the use of the other two light sources.
Influorescent, high pressure mercury halide, and high pressure sodium lamps were compared.
Best growth was obtained with warm white fluorescent light and poorest growth with high pressure sodium.
The difference between the lamps was largest at lower irradiance levels.
It decreased by rise in irradiation.
The natural light conditions had a larger influence on plant growth by the use of high pressure sodium lamps than by the use of the other two light sources.
Authors
S.O. Grimstad
Keywords
Online Articles (22)