Effect of 2-Azahypoxanthine (AHX) Produced by the Fairy-Ring-Forming Fungus on the Growth and the Grain Yield of Rice

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Author(s)

    • ASAI Tatsuo
    • Center for Education and Research in Field Sciences, Faculty of Agriculture, Shizuoka University
    • DEO Vipin Kumar
    • Research Institute of Green Science and Technology, Shizuoka University
    • MORITA Akio
    • Graduate School of Agriculture, Shizuoka University
    • KAWAGISHI Hirokazu
    • Research Institute of Green Science and Technology, Shizuoka University|Graduate School of Agriculture, Shizuoka University|Graduate School of Science and Technology, Shizuoka University
    • CHOI Jae-Hoon
    • Research Institute of Green Science and Technology, Shizuoka University|Graduate School of Agriculture, Shizuoka University
    • FUSHIMI Keiji
    • Graduate School of Science and Technology, Shizuoka University
    • ABE Nobuo
    • Graduate School of Agriculture, Shizuoka University
    • KOBORI Hajime
    • Graduate School of Science and Technology, Shizuoka University

Abstract

To examine the effect of 2-azahypoxanthine (AHX) on rice plant (<i>Oryza sativa</i> L. cv. Nipponbare) growth, we carried out pot and field experiments. AHX was applied at 50 μM for two weeks at four growth stages (transplanting, tillering, panicle formation and ripening stages) in the pot experiment, and 1 mM AHX at three stages [at rising of seedling in nursery boxes (seedling treatment), transplanting and panicle formation stages] in the field experiment. Both pot and field experiments showed a tendency toward increased panicle number (PN), culm length (CL) and plant dry weights with AHX treatments. Brown rice yields were also improved by AHX treatments, especially when applying at stages of tillering and panicle formation and seedling and transplanting during pot and field experiments, respectively. In the latter, yield increased drastically up to 18.7, 15.8, 9.6 and 5.8% of control. However, panicle length and 1000-grain weight were not affected by AHX application. These results suggested that AHX increased the brown rice yield through its effects on PN and/or CL.

Journal

  • Japan Agricultural Research Quarterly: JARQ

    Japan Agricultural Research Quarterly: JARQ 49(1), 45-49, 2015

    Japan International Research Center for Agricultural Sciences

Codes

  • NII Article ID (NAID)
    130004886284
  • NII NACSIS-CAT ID (NCID)
    AA0068709X
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    0021-3551
  • Data Source
    IR  J-STAGE 
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