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  • Open Access

    ARTICLE

    Selenium invoked antioxidant defense system in Azolla caroliniana plant

    Hassan AMA, EM Mostafa

    Phyton-International Journal of Experimental Botany, Vol.85, pp. 262-269, 2016, DOI:10.32604/phyton.2016.85.262

    Abstract Plants of Azolla caroliniana were treated with different selenium concentrations (0, 1, 2, 5, 7, 10 ppm) for seven days. Selenium (Se) content in Azolla plants increased significantly with increasing Se concentrations in the culture media up to 5 ppm. This indicated that Azolla plants were a good accumulator for Se. Selenium accumulation determined changes in Azolla biomass, doubling time and relative growth rates. Treatment of Azolla plants with low concentrations of Se (1 ppm) resulted in a significant increase in biomass. This was accompanied by a reduction in hydrogen peroxide and malondialdehyde (MDA) contents; the decrease percentages were 78%… More >

  • Open Access

    ARTICLE

    Growth and biochemical responses of moringa (Moringa oleifera L.) to vermicompost and phosphate rock under water stress conditions

    Abud-Archila M1, AK Espinosa-Arrioja1, T González-Soto2, VF Gutiérrez-Oliva1, V Ruíz-Valdiviezo1, D González-Mendoza2, L Rodríguez-Hernández3, FA Gutiérrez-Miceli1

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 209-215, 2018, DOI:10.32604/phyton.2018.87.209

    Abstract The aim of this investigation was to analyze the effect of vermicompost and phosphate rock on plant growth and biochemical responses of Moringa oleifera exposed to water deficit and waterlogging conditions. Treatments included 152 g of vermicompost (V) and 1.3 g of phosphate rock (PR) added to each cultivation bag. Control was prepared with 2.3 g of urea. All treatments were irrigated under different watering conditions [water deficit: irrigated at 20% water holding capacity (WHC); control (40% WHC) and waterlogging (60% WHC)]. The overall average in plant height was 90, 86 and 68 cm, whereas chlorophyll was 45, 40 and… More >

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