for wrapped rice or meat, cooked greens, kimchi and pickle. In Korean medicine, it effects strengthening of stomach,
sedation, urination, sweating and so on. It has a bright future as health food. Therefore, we researched the growth
and yield according to the different planting distances of Lactuca indica L. 'Seonhyang'. Seeds were sown in 105
cells tray-pot on 4th March 2013 in greenhouse and raised for 45 days. Seedlings were planted 10×10-30×40 cm (9
degrees) distances on 2nd May in the field contained compost 2 ton and N:P:K=14:10:9 kg/10 a. We harvested stems
with leaves in about 1 cm diameter, 25 cm length. The first harvest was 20th June, the second was 20th July and the
third was 19th August. The growth and yield per plant were best in first harvest of 30×25 cm planting distance (leaf
length 27.8 cm, leaf width 8.6 cm, stem width 14.8 mm, chlorophyll SPAD 47.4, yield 236.1 g/plant) and total yield
was 3,833 kg/10 a. In 10×10 cm, leaf length 26.7 cm, leaf width 6.6 cm, stem width 9.3 mm, chlorophyll SPAD
34.7 and yield 66.6 g/plant were low. But the total yield was 7,910 kg/10 a and it was twice compared with 30×25
cm. It was good for making pickle and kimchi because stem slimmed in 10×10 cm. The yields decreased according
to harvesting time (4,662 kg/10 a in 1st, 2,520 kg/10 a in 2nd and, 728 kg/10 a in 3rd).
6-노희선(최종).pdf
