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Effect of light and temperature on growth and photosynthesis of Anthuriumw
ere studied. Anatomically, the roots of anthurium cosist of stele, vasular
tissue andepidermis. The epidermis is developed as a velamen. The vascular b
oundleswere dispersed in the leaf tissue. Stomatal pores are only on the lowe
r surface of leaf. There are lentical observed on the cross section of stem.T
he leaf blade consists of two layers of palisade parenchyma cells and thechlor
oplasts are more concentrated in the palisade cells. The daily curve of the
photosynthesis arise from the beginning of dawn, have the highest value at 10
-11 am., and draw down till 6 pm. The stomatalconductance is affected by rela
tive humidity. The relative humidity is decreasing with the high light intens
ity. The stomatal conductance is decresing, too. With the stomata closed, in
tercellular CO2 concentration decreasing for C-fixation. Till the relative hu
midity increased, the stomata pore open and the leaf can make air exchange.
'Lady Jane' and 'Tropical' Anthurium have high leaf production and fastgrowth
rate in summer. The flower grow fast in spring and fall. The growthrate inc
reased with the light intensity increasing. Under low light level, the flower
of 'Lady Jane' Anthurium were all aborted. The abort rate of'Tropical' Anthu
rium is 0-10% under high and milddle light treatment. The netpohtosynthetic r
ate of 'Lady Jane' Anthurium increased with the increasinglight intensity. Th
e net photosynthetic rate of 'Tropical' under high and middle light intensity
are similar. When the newest leaf of Anthuriummature, three leaves and two fl
owers are developing in the terminal bud. The flower buds of 'Lady Jane' An
thurium were halfly aborted when displaying interior. The flower bud from eme
rgence to elongation is the mostsensitive stage to the change of light level.
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