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  • Open Access


    Estimation of Growth and Photosynthetic Performance of Two C4 Species (Pennisetum spicatum (L.) Körn. and Zea mays L.) under a Low Temperature Treatment

    Abdulkhaliq Alshoaibi*

    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 45-55, 2022, DOI:10.32604/phyton.2022.016434

    Abstract Pearl millet (Pennisetum spicatum (L.) Körn.) and maize (Zea mays L.) are C4 grass species grown for feeding humans and animals in Almadinah Almunawwarah, which is in the western part of Saudi Arabia. During the winter, the mean temperature, which drops to 14°C, represents a major problem for the growth of these species in this region. Therefore, the objectives of this research were to investigate the growth response and the photosynthetic performance of P. spicatum and Z. mays under a low temperature stress. The treatments involved daytime and nighttime temperatures of 14/12°C (low temperature) and 24/22°C (optimum temperature). The results… More >

  • Open Access


    Improved Tolerance of Three Saudi Pearl Millet Cultivars (Pennisetum spicatum) to Salt Stress by Mycorrhiza

    Abdulkhaliq Alshoaibi*

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 731-745, 2021, DOI:10.32604/phyton.2021.015476

    Abstract Seeds of three Saudi pearl millet cultivars (Pennisetum spicatum) from three regions (Madinah, Khulais and Jaizan) were inoculated with arbuscular mycorrhizal fungus Glomus mosseae obtained from the Agriculture Research Center of Giza, Egypt to enhance their salt tolerance. Five different NaCl concentrations (0, 30, 60, 90, and 120 mM) were used for treating cultivars with and without mycorrhiza. Growth rates, chlorophyll content, chlorophyll fluorescence (Fv/Fm), proline content and gas exchange were measured to determine the effect of salinity on these cultivars. The results indicated that compared to cultivars without mycorrhiza, all cultivars with mycorrhiza had enhanced growth and physiological parameters… More >

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