浸潤法を用いた水ストレス下の果樹葉気孔反応の測定と潅水開始時期の簡易判定 Simple measurement of leaf stomatal behavior under water deficit in fruit trees and their irrigation time ssing an infiltration method

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著者

    • 田頭 玲子 TAGASHIRA Reiko
    • 山形大学農学部生物生産学科農業生産学講座 Section of Agricultural Production, Department of Bioproduction, Faculty of Agriculture, Yamagata University
    • 田中 宏明 [他] TANAKA Hiroaki
    • 山形大学農学部生物生産学科農業生産学講座 Section of Agricultural Production, Department of Bioproduction, Faculty of Agriculture, Yamagata University
    • 小平 尚寿 KODAIRA Naotoshi
    • 山形大学農学部生物生産学科農業生産学講座 Section of Agricultural Production, Department of Bioproduction, Faculty of Agriculture, Yamagata University

抄録

Summary : For the purpose of easy judge by growers of water stress and irrigation time in fruit trees, an infiltration method using kerosene liquid only was examined for several deciduous fruit trees (five fruit tree species and nine cultivars). Close and quantitative relations were found between the stomatal pore areas measured by an image processing analysis method and the infiltration times. From the experiments using the detached leaves in which the infiltration time was compared under different air temperatures, a calibration method was devised to correct measurement errors which were brought about by differences in air temperature. Changes of water vapor diffusive resistances (Rls) and the corrected infiltration times were investigated on both the potted fruit trees and the detached leaves under water deficits. Approximate leaf water potential (ψl) in grapes, a persimmon, cherries, apples and pears, when the Rl began to rise suddenly, was ?1.2MPa, ?1.4MPa, ?1.8~?2MPa, ?1.7 ~?1.9MPa and ?2.1~?2.5MPa, respectively. Infiltration times as photosynthesis declines at various degrees were estimated from the relationships between ψls, Rls and the corrected infiltration time in each cultivar, and proposed as indices of the irrigation commencing time. The amplification of the index was procured in a case of substituting liquid paraffin when the infiltration time using kerosene passed in the shortness.

収録刊行物

各種コード

  • NII論文ID(NAID)
    110008103293
  • NII書誌ID(NCID)
    AN00243054
  • 本文言語コード
    JPN
  • 資料種別
    Departmental Bulletin Paper
  • 雑誌種別
    大学紀要
  • ISSN
    05134676
  • NDL 記事登録ID
    11014908
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産)
  • NDL 請求記号
    Z18-585
  • データ提供元
    NDL  NII-ELS  IR 
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