Chutipaijit, Sutee

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Preferred name
Chutipaijit, Sutee
Alternative Name
Chutipaijit, S.
Main Affiliation
Email
sutee.ch@kmitl.ac.th

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    Item type:Publication,
    Growth Responses and Regression Analysis of Zinc Oxide Nanoparticles in Indica Rice (Oryza sativa L.)
    (2022-01-01)
    Sutjaritvorakul, Thanawat
    ;
    Koomsubsiri, Amorn
    ;
    Sridam, Idhisak
    ;
    Meksiriporn, Bunyarit
    ;
    Chutipaijit, Sutee
    The use of metal nanomaterials to promote plant growth and inhibit plant pathogenic microorganisms is gaining interest. In this study, zinc oxide nanoparticles (ZnONPs) were evaluated for effects on growth and productivity of indica rice plants (Oryza sativa L.). The rice plant was exposed to ZnONPs with different concentrations i. e. 0, 200, 600 and 800 mg/l. The plant height, weight and the number of panicles per clump were investigated. The result showed that 200 mg/l of ZnONPs induced the highest enhancement of plant height, weight and the number of panicles per clump with a significant difference compared to other groups. The mathematical model of the height, weight and the number of panicles per clump was analyzed by linear regression, and the determination coefficient (R<sup>2</sup>) of the linear regression model was 0.86, 0.84 and 0.52, respectively. This linear regression model could be potentially extended to the indica rice plant cultivation process in practical applications to predict the rice plant growth and productivity in commercial cultivation.
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    Item type:Publication,
    Nanocarbon induced modifications in morpho-physiopgical characteristics in rice plants [oryza sativa l. cv. black jasmine rice (Hom-nin)]
    (2020-01-01)
    Samart, Sutichai
    ;
    Chutipaijit, Sutee
    The aim of this research was to evaluate the potential application of nanocarbon in plant growth and physiological responses in rice plants. This research was designed to evaluate the effects of different concentration of nanocarbon (0-1,000 mg L<sup>-1</sup>) on growth characterizations and physiological parameters after 1-4 weeks of nanocarbon-treatment. Induction in the growth performances and contents of photosynthetic pigments (chlorophyll A, chlorophyll B and carotenoids), antioxidant enzyme activities (catalase and peroxidase) and flavonoids was observed in the rice plants after treated with nanocarbon. The results showed that nanocarbon promoted the plant growth in rice plants cv. Black jasmine rice or Hom-nin by increasing the shoot lengths and dry weights. The significant increase of shoot length and dry weight were found in 200 and 600 mg L<sup>-1</sup> nanocarbontreatments. Additionally, the high contents of photosynthetic pigment concentrations in treated-plants showed significant difference at 600 mg L<sup>-1</sup> nanocarbon compared to the control (0 mg L<sup>-1</sup> nanocarbon). The antioxidant activities of catalase and peroxidase enzymes in nanocarbon treated-plants were significantly increased compared to the control. Furthermore, the induction of flavonoid contents in treated-plants was increased by 200 and 600 mg L<sup>-1</sup> nanocarbon. The results suggested that nanocarbon able to promote the biomass and has benefit to increase the photosynthetic pigments and antioxidant enzymes for plant growth performances. This research provided plant growth and physiological responses evidence on the beneficial effect of nanocarbon in rice plants, especially Black jasmine rice or Hom-nin cultivar.