自動底面灌水によるストックのセル苗生産(第1報)蒸発散量と環境要因, 特に日射量との関係について Transplant Production of Stock with Automatically Subirrigated Cell Flat (Part 1) Relationships between Evapotranspiration and Environmental Factors, Especially Solar Radiation

この論文にアクセスする

この論文をさがす

著者

抄録

Changes in the evapotranspiration (ETP) of stock (<I>Matthiola incana</I> R. Br.) cv. White Dorse seedlings in a cell flat were measured, and regression analyses were conducted to investigate the relationships between ETP and environmental factors (solar radiation ; SR, saturation deficit ; SD and air temperature ; AT). <BR>In each sowing month, ETP was positively correlated with SR, SD and AT. Coefficients of determination (R<SUP>2</SUP>) were higher than 0.81 in SR throughout the year and larger than those in SD or AT in most sowing months. Seasonal variation of R<SUP>2</SUP> in the regression lines was also lowest between ETP and SR compared to the other two factors. Thus, ETP was strongly affected by SR in each sowing month. <BR>When the yearly data were pooled, the regression line between ETP (y;mg·plant<SUP>-1</SUP>) and SR (x;MJ·M<SUP>-2</SUP>) was expressed as follows ; y = 276.2x+24.1 (R<SUP>2</SUP>= 0.873). Although R<SUP>2</SUP> of a multiple regression equation became 0.921 when SD and AT were included as explanatory variables, there was little difference between the values of R<SUP>-2</SUP>-. A simple regression line of ETP and SR could estimate ETP. <BR>Change in ETP during seedling growth caused by the increase in the total leaf area was only 1.7 fold in comparison to changes in total dry weight and leaf area which were 10 and 7 fold, respectively. ETP at night was considered negligible in the estimation of ETP. <BR>When the transplants of stock are grown with an automatic fertigation system for a cell flat (12m<I>l</I> cell volume), supplying every 5 to 6 MJ·m<SUP>-2</SUP> cumulative solar radiation may be a suitable value for fertigation frequency.

収録刊行物

  • 植物工場学会誌

    植物工場学会誌 14(2), 81-86, 2002-06-01

    JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS

参考文献:  17件中 1-17件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10012339180
  • NII書誌ID(NCID)
    AN10451761
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09186638
  • NDL 記事登録ID
    6152432
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z18-3397
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ