This website theme is still in development
x

Skip to content. | Skip to navigation

Home Publications Tree Planters' Notes Tree Planters' Notes Volume 46, Number 1 (1995) A New Greenhouse Photoperiod Lighting System for Prevention of Seedling Dormancy

A New Greenhouse Photoperiod Lighting System for Prevention of Seedling Dormancy

An oscillating light fixture consisting of a 400-watt highpressure sodium arc lamp and an oscillating parabolic mirror was designed and tested on blue spruce (Picea pungens Engelm.). It successfully prevented apical bud dormancy at distances up to 13 m (43 ft) and light intensities as low as 0.5 µE/m2 /sec (4 footcandles) in a greenhouse. Tree Planters' Notes 46(1):11-14; 1995.


Download this file:

PDF document Download this file — PDF document, 1210Kb

Details

Author(s): Richard W. Tinus

Publication: Tree Planters' Notes - Volume 46, Number 1 (1995)

Volume: 46

Number: 1