INFLUENCE OF POSTHARVEST LIGHT LEVEL ON LEAF DROP AND LEAF NECROSIS OF FICUS BENJAMINA 'STARLIGHT'

G.E. Mulderij
Ficus benjamina 'Starlight' is an important pot plant cultivar which has variegated leaves. Especially after transport, but sometimes already during growth in the greenhouse, severe leaf drop and leaf necrosis can occur. The effect of a dark storage period and of the subsequent light intensity in the interior environment on leaf drop and leaf necrosis has been studied.

Plants from two commercial growers were given a transport simulation of 7 or 14 days. Both control plants and stored plants were transferred into interior environments with different light intensities (1.5, 3.0, 4.5 or 6.0 W/m2). Leaf drop occurred two weeks after transport simulation, leaf necrosis some weeks later. Leaf drop and leaf necrosis of plants placed under the lowest light intensity was significantly higher than those under higher light intensities. Transport simulation increased leaf drop and leaf necrosis. Except for plants placed under 1.5 W/m2, the effect of transport on leaf drop disappeared after about 6 weeks.

Mulderij, G.E. (1991). INFLUENCE OF POSTHARVEST LIGHT LEVEL ON LEAF DROP AND LEAF NECROSIS OF FICUS BENJAMINA 'STARLIGHT'. Acta Hortic. 298, 153-160
DOI: 10.17660/ActaHortic.1991.298.17
https://doi.org/10.17660/ActaHortic.1991.298.17

Acta Horticulturae