Comparison of Growth Characteristics Between 5-year-old emblings Derived form Somatic Embryos and Seedlings in Liriodendron tulipifera
2012
Kim, Y.W., Korea Forest Research Institute, Suwon, Republic of Korea | Moon, H.K., Korea Forest Research Institute, Suwon, Republic of Korea
The 5-year-old seedlings and emblings which regenerated from somatic embryos were compared to the height, DBH, foliar characteristics, content of chlorophyll (chlorophyll a, b and total chlorophyll), carotenoid and leaf microstructure in Liriodendron tulipifera. In comparison of height and DBH (diameter at breast height), no significant differences were found in height (seedling, 3.8 m; embling, 3.87 m) and DBH (seedling, 12.09 cm; embling, 12.53 cm). The emblings and seedlings were similar in values of length (seedling, 108.11 mm, embling, 113.59 mm), width (seedling, 149.1 mm; embling, 167.71 mm), surface area (seedling, 119.92 ㎟; embling, 164.43 ㎟), fresh weight (seedling, 2.1 g; embling, 2.62 g) of leaf, and length (seedling, 81.49 mm; embling, 98.41 mm) and thickness (seedling, 1.66 mm; embling, 1.98 mm) of petiole. In case of chlorophyll content in the leaves, the chlorophyll a (seedlings, 11.2 ㎍/g; emblings, 13.2 ㎍/g), b (seedlings, 4.8 μ/g; emblings, 5.4 ㎍/g) and total content were higher in emblings (930.2 ㎍/g) than seedlings (800.1 ㎍/g), however, content of carotenoid (seedlings, 260.3 ㎍/g; embling, 265.2 ㎍/g) showed similar in both plants. Leaves of emblings had a similar pattern of histological structure (palisade or sponge parenchyma) to that of seedlings leaves. Therefore, the results showed that there were no remarkable growth differences when compared with 5-year-emblings and seedlings of yellow poplar.
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