Effect of chitosan on morpho-physiological traits and regeneration of Iris pseudacorus plantlets under in vitro conditions

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 131

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شناسه ملی سند علمی:

JR_BREDNG-12-2_007

تاریخ نمایه سازی: 11 آذر 1402

چکیده مقاله:

Iris pseudacorus is a highly valuable ornamental and medicinal plant. Chitin is one of the most abundant polysaccharides in nature and is widely used in agriculture for seed germination to stimulate plant growth. Chitosan can be used as an antibacterial component and can increase plant resistance to diseases. This study was conducted based on a completely randomized design. Treatments consisted of different concentrations of chitosan (۰, ۵, ۱۰, ۲۰, ۴۰, ۸۰, and ۱۲۰ ppm) with five replications. Morphological and physiological traits including leaf number, leaf weight, plantlets height, leaf area, percentage of regeneration, chlorophyll a, b and total, total phenol, and flavonoids were evaluated. Results of the analysis of variance showed that chitosan significantly affected leaf number, regeneration percentage, phenol content, and leaf fresh weight. Flavonoids, chlorophyll a and b, total chlorophyll were also significantly affected. Results also showed that the highest (۳۱.۶۰ mg/g gallic acid) and lowest (۱۵.۵۱ mg/g gallic acid) total phenol content was obtained from ۱۲۰ ppm chitosan and control samples, respectively. The highest flavonoid content (۵.۷۸ mM/g) was obtained by ۱۲۰ ppm chitosan and the lowest value (۳.۲۰ mM/g) was recorded in the control treatment. In general, our investigation showed that chitosan had a positive effect on all measured traits. In most of the measured traits, the best chitosan concentration was ۱۲۰ ppm.

نویسندگان

Younes Pourbeyrami Hir

Department of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran

Raana Adham

Department of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran

Esmaeil Chamani

Department of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran

Hassan Maleki Lajayer

Department of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran

Mohammad Hasanzadeh

Department of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran

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