Growth and Flowering of <i>Doritaenopsis</i> Queen Beer ‘Mantefon’ as Affected by Different Potting Substrates

DOI Web Site Web Site 13 References
  • Kim Hyun Jin
    Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women’s University
  • Kim Jongyun
    Division of Biotechnology, Korea University
  • Yun Do Lee
    Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women’s University
  • Kim Ki Sun
    Department of Horticultural Science & Biotechnology, Seoul National University
  • Kim Yoon Jin
    Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women’s University

Bibliographic Information

Other Title
  • コチョウラン品種‘満天紅’における植え込み培土の違いが生育と開花に及ぼす影響
  • Growth and Flowering of Doritaenopsis Queen Beer 'Mantefon' as Affected by Different Potting Substrates

Search this article

Abstract

<p>To assess the growth and flowering of the Doritaenopsis orchid in alternative substrates, Doritaenopsis Queen Beer ‘Mantefon’ was grown for 15 months in four different substrates; a commercial 100% Chilean sphagnum moss (S), peat moss (P), medium-grade Douglas fir bark mixed with P with a 3:7 ratio (v/v) (BP), and S and P mixes (SP) with a 4:6 ratio (v/v). Physical (porosity and water holding capacity) and chemical (pH and EC) properties of the four substrates were investigated. SP substrate had significantly higher substrate volumetric water content (VWC) than the other three substrates only for the first 3 days after fertigation, and only the BP substrate maintained lower air space than the other substrates. Although there was no relevant growth responses to VWC and air space changes, a better growth in shoots and fastened flowering of Doritaenopsis ‘Mantefon’ occurred in plants grown in the P substrate, which could be attributed to providing better contact of terrestrial roots to the substrate enabling enough water and nutrient supply, along with a proper pH range of 6.15. At 15 months after transplanting, plants grown in the P and BP substrates had larger leaves and a greater shoot dry weight than the plants grown in the S and SP substrates. Plants grown in the P substrate produced 2.75 flower spikes, whereas the plants grown in the S, BP, and SP substrates produced 2.00 to 2.33 flower spikes. Plants grown in the P, BP, S, and SP substrates produced a third flower spike, being 67%, 33%, 17%, and 8%, respectively. There was no significant difference in the total number of flowers, while the total numbers of buds were 32.3, 23.4, 23.0, and 19.7 in plants grown in the P, S, BP, and SP substrates, respectively. Time to visible flower spike was shortened in plants grown in the P substrate compared to the plants grown in other substrates. With these results, using alternative substrates including peat moss for Doritaenopsis cultivation, growers may be able to promote leaf growth and flower spike induction with lower expenses on substrate costs, resulting in a high quality production of Doritaenopsis ‘Mantefon’ with more profit.</p>

Journal

  • The Horticulture Journal

    The Horticulture Journal 85 (4), 360-365, 2016

    The Japanese Society for Horticultural Science

References(13)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top