Effects of Planting Density and Air Current Speed on the Growth and That Uniformity of Tomato Plug Seedlings in a Closed Transplant Production System

• YOKOI Shingo

  Faculty of Horticulture, Chiba University

• GOTO Eiji

  Faculty of Horticulture, Chiba University

• KOZAI Toyoki

  Chiba University

• NISHIMURA Masao

  Environmental Business Center, Yamatake Corporation

• TAGUCHI Katsunori

  Network Division, PC Works Corporation

• ISHIGAMI Yasuhiro

  Faculty of Horticulture, Chiba University

Bibliographic Information

Other Title

• 閉鎖型苗生産システムにおける栽植密度および気流速度がセル成型トマト実生苗の生育およびその均一性に及ぼす影響
• ヘイサガタ ナエ セイサン システム ニ オケル サイショク ミツド オヨビ キリュウ ソクド ガ セル セイケイ トマト ミショウ ナエ ノ セイイク オヨビ ソノ キンイツセイ ニ オヨボス エイキョウ

Abstract

Tomato seedlings were grown in plug trays at three planting densities (700, 1100, or 1600 m^-2) under two air current speed conditions (0.3 or 0.7 m s^-1) either in closed transplant production system or in a greenhouse without air current speed control. The growth and that uniformity of the tomato plug seedlings decreased with an Increase in the planting density in the closed transplant production system. At the higher air current speed, the growth increased without a decrease in the growth uniformity and excessive stem elongation. The growth and that uniformity of seedlings grown in the closed transplant production system were greater than those of seedlings grown in the greenhouse. These results indicate that the closed transplant production system under the higher air current speed condition enabled transplant production using plug trays with higher planting densities than those in the greenhouse. The environments in the closed system and greenhouse were measured and compared. Based on the results, high integrated light intensity and light sources with a high red to far-red ratio in the closed system appeared to be the reasons for the decrease in excessive stem elongation and increase in growth uniformity when compared with those in the greenhouse.

Journal

• Shokubutsu Kankyo Kogaku

  Shokubutsu Kankyo Kogaku 19 (4), 159-166, 2007

  Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists

Keywords

• artificial lighting
• fluorescent lamp
• <I>Lycopersicon esculentum</I>
• plant factory

Details

• CRID: 1390282680207598208
• NII Article ID: 10019963657
• NII Book ID: AA12010914
• DOI: 10.2525/shita.19.159
• ISSN: 18803563
• ISSN: 18802028
• NDL BIB ID: 9287355
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010752620
• Web Site: https://opac.ll.chiba-u.jp/da/curator/107551/
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9287355
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed