Effect of gibberellic acid and priming on germination and some constituents of Stevia (Stevia rebaudiana Bertoni)

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SEDGHI MOHAMMAD; Sheikhnavaz Jahed Parisa; SEYED SHARIFI RAOUF

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Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2018 | Volume:7 | Issue:26 Page(s): 199-207

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Title

Effect of gibberellic acid and priming on germination and some constituents of Stevia (Stevia rebaudiana Bertoni)

Author(s)

SEDGHI MOHAMMAD | Sheikhnavaz Jahed Parisa | SEYED SHARIFI RAOUF | Issue Writer Certificate

Keywords

Anti-oxidant enzymesQ2

GerminationQ1

seed pre-treatmentQ2

gibberellic acidQ2

alpha-amylaseQ2

Abstract

Considering low vigor of Stevia (Stevia rebaudiana Bertoni) seeds and difficulty of its Germination, the purpose of this experiment was to evaluating the effect of different priming types on Germination and seedling growth of Stevia in the presence of gibberellic acid. A factorial experiment was carried out based on a completely randomized design with three replications. Treatments consisted of different concentrations of gibberellic acid (G1=0, G2 =25 and G3=50 mg L-1) and seed priming as hydro, hormone (gibberellic acid, 0. 2 mg L-1) and Osmo (3% potassium nitrate) for 18 hours. The essential oil constituents were measured by gas chromatography (GC). The activity of hydrolytic and antioxidant enzymes in seedlings also were measured. The highest Germination percentage (67. 26 %) observed in the hormone priming and the concentration of 50 mg L-1 of gibberellic acid. Osmopriming had the highest Germination rate. The highest levels of SOD activity and MDA content observed in osmopriming and catalase and peroxidase achieved in hydro priming without application of gibberellic acid. The highest level of alpha-amylase enzyme activity was related to hormone priming with 50 mg L-1 gibberellic acid. The highest levels of alphacadinol, methyl salicylate and Safranal and also carbohydrates and protein observed in hormone priming and 50 mg L-1 gibberellic acid. In conclusion, to achieve the highest essential oil contents in Stevia using hormone priming and application of 50 mg L-1 gibberellic acid was suitable.

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APA: Copy

SEDGHI, MOHAMMAD, Sheikhnavaz Jahed, Parisa, & SEYED SHARIFI, RAOUF. (2018). Effect of gibberellic acid and priming on germination and some constituents of Stevia (Stevia rebaudiana Bertoni). JOURNAL OF PLANT PROCESS AND FUNCTION, 7(26 ), 199-207. SID. https://sid.ir/paper/371113/en

Vancouver: Copy

SEDGHI MOHAMMAD, Sheikhnavaz Jahed Parisa, SEYED SHARIFI RAOUF. Effect of gibberellic acid and priming on germination and some constituents of Stevia (Stevia rebaudiana Bertoni). JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2018;7(26 ):199-207. Available from: https://sid.ir/paper/371113/en

IEEE: Copy

MOHAMMAD SEDGHI, Parisa Sheikhnavaz Jahed, and RAOUF SEYED SHARIFI, “Effect of gibberellic acid and priming on germination and some constituents of Stevia (Stevia rebaudiana Bertoni),” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 7, no. 26 , pp. 199–207, 2018, [Online]. Available: https://sid.ir/paper/371113/en

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