• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1994 Fiscal Year Final Research Report Summary

Studies on the Growth Regulating Substances Related to Biochemical Interactions among Crop Plants

Research Project

Project/Area Number 04454046
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 作物
Research InstitutionMIYAZAKI Univesity

Principal Investigator

TSUZUKI Eiji  Miyazaki University, Agriculture and Forest Sciences, Professor, 農学部, 教授 (30041049)

Co-Investigator(Kenkyū-buntansha) TERAO Hiroyuki  Miyazaki University, Agriculture and Forest Sciences, Associate Prof., 農学部, 助教授 (60117174)
Project Period (FY) 1992 – 1994
KeywordsAllelopathy / Injury by continuously cropping / Biochemical interactions among crop plants / Growth inhibitors / 他感作用
Research Abstract

The present experiments were conducted to investigate the causes of growth injury by continuous cropping from standpoint of biochemical interactions in alfalfa and taro plants. (1) Alfalfa ; Allelopathic effects (biochemical interactions) of alfalfa plants were investigated using soil previously grown with alfalfa (alfalfa soil). Alfalfa soil inhibited emergence of alfalfa seeds and also the growth of alfalfa and radish. Aqeous and methanol extracts from the alfalfa soil and the plants markedly inhibited the elongation of radish hypocotyl and alfalfa radicle, suggesting the presence of allelopathic substances. Allelopathic substances in alfalfa plants were purifid from methanol extracts of alfalfa shoots. Two substances from methanol extracts of alfalfa were identified using HPLC,Mass-spectro-meter, IR and NMR as follows : Felulic and salicylic acids. (2) Taro plants ; The results of analysis of chemical and biological properties of the soils, which were continuously planted with taro and rotated with other crops showed that there were little differences in chemical properties, and nematoda. The soil which cropped continuously totaro eaduced significantly dry weight of turnip as compared to one rotated with other crops and the aqueous extracts from taro plants inhibited elongation of length of hypocotyl and radicle of radish. Methanol extracts from taro soil and shoots and residues of taro alaso inhibited remarkably elongation of hypocotyl and radicle in turnip. The results obtained suggest that the growth inhibitors in taro might be connected with injury by continuously cropping.

  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] Nakahisa,K.Tsuzuki,E.他: "Study on the allelopathy of alfalfa.(1) Observation of allelopathy and surveg for substances inducing growth inhibition." Japan Journal of Crop Science. 62. 294-299 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakahisa,K.Tsuzuki,E.他: "Study on the allelopathy of alfalfa.(2)Isolation and identitication of allelopathie substances in alfalfa." Japan Journal of Crop Science. 63. 278-284 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 続 栄治 他: "サトイモの連作障害に関与する要因" 日本作物学会紀事. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] NAKAHISA,K.TSUZUKI,E.et al: "Studies on the allelopathy of alfalfa. (1) Observation of allelopathy and survey for substances inducing growth inhibition." Jpn.Jour.Crop Sci.62-2. 294-299 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] NAKAHISA,K.TSUZUKI,E.et al: "Studies on the allelopathy of alfalfa. (2) Isolation and identification of allelopathic substances in alfalfa." Jpn.Jour.Crop Sci.63-2. 278-284 (1993)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1996-04-15  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi