This study was conducted to find characteristics of photosynthesis for dwarf and street tree cultivars
of Hibiscus syriacus L. Characteristics of growth and flowering on some cultivars were investigated.
The photosynthetic capacity for the cultivars was also measured. Bulsae showed the best height
increase; Soyang represented the lowest growth. Baektanshim ?Kyungbuk1 had the largest number
of branches and leaves. Sundeok and Bulsae were the best in terms of height and width of flower.
Soyang showed the smallest flowers. According to the analysis of chlorophyll content (chlorophyll a, b,
total) for the cultivars, there was little difference between Sundeok and Bulsae. Based on light
response curves for cultivars, it was found that Baektanshim ?Kyungbuk1 and Soyang had lower
light compensation and light saturation points than Bulsae and Sundeok. Cultivars Baektanshim ?
Kyungbuk1 and Soyang were also low in dark respiration, photosynthetic capacity, and net apparent
quantum yield. In conclusion, it is recommended that cultivars Baektanshim ?Kyungbuk1 and
Soyang might be used as a dwarf type due to photosynthetic capacity.