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Information Journal Paper

Title

Effects of ascorbic acid on physiological and biochemical responses of Zinnia elegans L. to different levels of light intensity

Pages

  259-273

Abstract

 The aim of this study was to investigate the effects of different light intensities and Ascorbic acid on some physiological and biochemical characteristics of Zinnia elegans L. The experiment was designed as a completely randomized design in a form of split-plot with three replications. The treatments consisted of three light intensity levels (600, 1200 and 1800 μ mol m-2-1 s ) as the main factor using shade net and weekly spraying three Ascorbic acid concentrations (0, 1, 2 mM) as sub-plots. Analysis of variance showed that light intensity had a significant effect on all the studied traits, except for the guard cell width. As light intensity increased, Proline content, catalase, and ascorbate peroxidase activity increased. The lower light intensity increased chlorophyll a and b, carotenoids, total chlorophyll, and peroxidase enzyme activity. Furthemore, with increasing light intensity, stomatal density and index, and epidermal cells density increased, so that stomatal density of plants grown under 1800 μ mol m-2-1 s light intensity was twice of that under 600 -2-1 μ mol m s light intensity. Moreover, application of Ascorbic acid increased ascorbate peroxidase enzyme activity, stomatal density, guard cell length, while, it reduced Proline content, catalase and peroxidase enzyme activities. Overall, the results showed that increasing light intensity induced stress in Zinnia and weekly application of Ascorbic acid alleviated the stress effects.

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    APA: Copy

    Mahdavifard, Mehri, Rezaei Nejad, Abdolhossein, & MOUSAVI FARD, SADEGH. (2020). Effects of ascorbic acid on physiological and biochemical responses of Zinnia elegans L. to different levels of light intensity. JOURNAL OF PLANT PROCESS AND FUNCTION, 9(35 ), 259-273. SID. https://sid.ir/paper/407178/en

    Vancouver: Copy

    Mahdavifard Mehri, Rezaei Nejad Abdolhossein, MOUSAVI FARD SADEGH. Effects of ascorbic acid on physiological and biochemical responses of Zinnia elegans L. to different levels of light intensity. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2020;9(35 ):259-273. Available from: https://sid.ir/paper/407178/en

    IEEE: Copy

    Mehri Mahdavifard, Abdolhossein Rezaei Nejad, and SADEGH MOUSAVI FARD, “Effects of ascorbic acid on physiological and biochemical responses of Zinnia elegans L. to different levels of light intensity,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 9, no. 35 , pp. 259–273, 2020, [Online]. Available: https://sid.ir/paper/407178/en

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