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2021 Vol.34, Issue 5 Preview Page

Research Article

Effects of Artificial Shading on Flowering and Growth of Maesa japonica Seedlings

차광 처리가 빌레나무(Maesa japonica)의 개화 및 생장에 미치는 영향

Min Ji Park1
,
Yeon Ok Seo2*
,
Hyung Soon Choi3
,
Byoung Ki Choi2
,
Eun Young Im2
,
Ju Eun Yang1
,
Chae bin Lee1
박 민지1
,
서 연옥2*
,
최 형순3
,
최 병기2
,
임 은영2
,
양 주은1
,
이 채빈1
1Master’s Degree Researcher, Warm-temperate and Subtropical Forest Research Center, National Institute of Forest Science, Seogwipo 63582, Korea
2Researcher, Warm-temperate and Subtropical Forest Research Center, National Institute of Forest Science, Seogwipo 63582, Korea
3Senior Researcher, Division of Global Forestry, National Institute of Forest Science, Seoul 02455, Korea
1국립산림과학원 난대아열대산림연구소, 석사연구원
2국립산림과학원 난대아열대산림연구소, 임업연구사
3국립산림과학원 국제산림연구과, 임업연구관
*Corresponding Author
1 October 2021. pp. 462-469
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Abstract

Maesa japonica (Thunb.) Moritzi & Zoll. is a rare evergreen shrub that occurs in west Gotjawal, Jeju island, Korea. This study was conducted to investigate effects of an artificial shading on flowering and growth characteristics of M. japonica seedlings. The level of shading had been set to be 35%, 55% and 75% using shading net. The stage of flowering and flowering ratio, seedling height, the number of leaves and stems, leaf area were measured. Flowering timings were delayed by shading. The number of flowering seedlings per plot and inflorescences per seedling were the most in 55% shading level. Tendency of decreased seedling height with increased shading level was shown. The number of leaves and stems were the fewest values in 75% shading level. The increased biomass with decreased shading level was statistically significant. Aboveground and underground biomass were 2.1 and 1.7 times higher in shading 35% than in shading 75%, respectively. Meanwhile, all seedlings in non-shading plots were dead in winter. Such might be speculated as results of the light stress. As a result, we conclude that M. japonica vitally demands the shading for growth and the optimal shading levels for growth and flowering are 35% and 55%, respectively.

Keywords
Anthesis
Biomass
Light environment
Seedling height
Shade-intolerance
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 34
  • No :5
  • Pages :462-469
  • Received Date : 2021-06-30
  • Revised Date : 2021-08-03
  • Accepted Date : 2021-08-05
  • DOI :https://doi.org/10.7732/kjpr.2021.34.5.462
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