This study was conducted to develop a method of treatment with plant growth regulators to enhance the value of a foliage plant, Spathiphyllum wallisii Hort. The plant growth regulators BA and GA3 were applied alone or in combination at different concentration levels. BA treatment was effective in increasing the plant height of S. wallisii Hort. compared with the control. GA3 treatment significantly increased plant height and leaf length compared with those in the control, while the number of leaves decreased. The number of flowers per plant was approximately 1 in the control treatment, while GA3 treatment increased the number of flowers to 5.3–9.3 per plant. The highest number of flowers per plant was 9.3 upon treatment with 300 mg·L-1 BA + 1,000 mg·L-1 GA3. However, GA3 treatment caused physiological disorder. Part of the leaves exhibited white discoloration. This symptom was considered to involve transformation of leaves into flowers on S. wallisii Hort., caused by gibberellin treatment. These results showed that gibberellin treatment was effective in inducing flowering of S. wallisii Hort. The presence of flowers is important for the ornamental value of pot plants. Therefore, gibberellin treatment could improve the ornamental value of S. wallisii Hort. by increasing the number of flowers.

Introduction
Materials and Methods
    Plant materials
    Plant growth regulator treatment
    Growth characteristic research
    Statistical analysis
Results and Discussions
    Growth characteristic
    Floral induction
References

• Hoon Geun Oh(Jujube Research Institute, Chungcheongbuk-do Agricultural Research & Extension Services, Boeun 28902, Korea) Corresponding author
• Joung Won Lee(Jujube Research Institute, Chungcheongbuk-do Agricultural Research & Extension Services, Boeun 28902, Korea)
• Min Jeong Lee(Smart Horticulture Research Division, Chungcheongbuk-do Agricultural Research & Extension Services, Cheongju 28130, Korea)
• Ju Sung Cho(Department of Horticultural Science, Chungbuk National University, Cheongju 28644, Korea)