Effect of radiation quality on growth and photosynthesis of Acacia mangium seedlings

Abstract

Radiation quality was an important environmental cue to stimulate seed germination in Acacia mangium. The photosynthetic CO2 assimilation rate, dark respiration rate, total biomass, and relative growth rate of seedlings grown under monochromatic radiation were significantly lower than those of seedlings grown under full spectrum radiation. Blue and red radiation induced shade-avoidance and shade-tolerant responses of A. mangium seedlings, respectively.