EFFECT OF SIO2NPS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF HAWTHORN (CRATAEGUS ARONIA L.) SEEDLINGS

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ASHKAVAND P.; TABARI M.; ZARAFSHAR M.; GHANBARI E.

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Journal: Journal of Wood and Forest Science and Technology Year:2016 | Volume:23 | Issue:1 Page(s): 41-61

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Title

EFFECT OF SIO2NPS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF HAWTHORN (CRATAEGUS ARONIA L.) SEEDLINGS

Author(s)

ASHKAVAND P. | TABARI M. | ZARAFSHAR M. | GHANBARI E. | Issue Writer Certificate

Keywords

BIOMASSQ2

WATER POTENTIALQ1

GAS EXCHANGEQ1

RELATIVE WATER CONTENTQ1

NANOPARTICLESQ2

Abstract

Background and objectives: In order to utilize NANOPARTICLES in plant science, basic physiological research is required. So far, most investigations on NANOPARTICLES effects on plant performance have focused their attention on grasses and crops while information on woody plants is very scarce. In this study, effect of silica NANOPARTICLES on growth and physiological behavior of hawthorn (Crataegus aronia L.) seedlings - one of the most important species of Zagros habitat- was examined.Materials and methods: a greenhouse experiment was set up following a completely randomized design with 4 treatments and 5 replicates. The treatments included soil irrigation with tap water (without NANOPARTICLES) and three different concentrations of silica NANOPARTICLES (NPs) - 0, 10, 50 and 100 mg.l-1 - every three days until reach field capacity for a total period of 45 days. Assessment of GAS EXCHANGE parameters (net photosynthesis, stomatal conductance and transpiration rate) during the experiment period as well as some physiological changes (leaf RELATIVE WATER CONTENT and xylem WATER POTENTIAL) and BIOMASS allocation (roots, stems and leaves) were measured at the end of experiment. Scanning electron microscopy (SEM) was used to study the presence of NANOPARTICLES on the root epidermis.Results: Although nanosilica on hawthorn trees partially reduced plant WATER POTENTIAL (more negative), leaf RELATIVE WATER CONTENT was not affected by the SiO2 NPs treatments. Silica NANOPARTICLES significantly increased the GAS EXCHANGE rate during the experiment, which finally led to an increase of plant BIOMASS - especially of roots. Total BIOMASS of seedlings subjected to irrigation with 100 mg.l-1 was 40% higher compared to control plants. The evaluation of SEM images confirmed massive presence of silica NANOPARTICLES on root epidermical surface.Conclusion: In general, it can be stated that silica NANOPARTICLES improved the physiological activity of plants, which resulted in high BIOMASS accumulation in hawthorn seedling. Further studies are required to understand the mechanisms behind these responses. Genomic studies (gene and protein expression) might be considered by plant biologists as starting point to achieve this goal.

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APA: Copy

ASHKAVAND, P., TABARI, M., ZARAFSHAR, M., & GHANBARI, E.. (2016). EFFECT OF SIO₂NPS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF HAWTHORN (CRATAEGUS ARONIA L.) SEEDLINGS. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 23(1), 41-61. SID. https://sid.ir/paper/156664/en

Vancouver: Copy

ASHKAVAND P., TABARI M., ZARAFSHAR M., GHANBARI E.. EFFECT OF SIO₂NPS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF HAWTHORN (CRATAEGUS ARONIA L.) SEEDLINGS. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2016;23(1):41-61. Available from: https://sid.ir/paper/156664/en

IEEE: Copy

P. ASHKAVAND, M. TABARI, M. ZARAFSHAR, and E. GHANBARI, “EFFECT OF SIO₂NPS ON GROWTH AND PHYSIOLOGICAL CHARACTERISTICS OF HAWTHORN (CRATAEGUS ARONIA L.) SEEDLINGS,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 23, no. 1, pp. 41–61, 2016, [Online]. Available: https://sid.ir/paper/156664/en

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