| Summary: | The cut chrysanthemum (Chrysanthemum
×morifolium Ramat.) is one of the most recognized cut
flowers in the world. Light quality significantly affects the
development and growth of plants. To conduct an in-depth
investigation of the effects of light quality on the growth
and development of cut chrysanthemums, seedlings of
the cut chrysanthemum cultivar ‘Riqietaohong’ were
cultured under four different light emitting diode (LED)
systems: red (R), blue (B), red : blue = 2:1 (RB) and blue
: red = 2:1 (BR). A fluorescent lamp was used for control
group lighting. The Duncan multiple comparisons
analysis showed that the B light promoted stem and leaf
development of seedlings but inhibited photosynthesis.
The R light stimulated their rooting but inhibited the
accumulation of biomass. RB improved transpiration.
Moreover, a comprehensive evaluation system that
combined the analytic hierarchy process (AHP) method
with the technique for order preference by similarity to
an ideal solution (TOPSIS) method indicated that the
photosynthesis index, transpiration index and biomass
index were the most important indicators for the growth
and development of cut chrysanthemums, and RB
was the best LED system for cut chrysanthemums. The
present study provides references for the lower energy
consumption and industrial annual production of cut
chrysanthemums.
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