Iranian Journal of Horticultural Science

Iranian Journal of Horticultural Science

The effect of salicylic acid and chelated magnesium sulfate on amount of α-tocopherol and some physiological characteristics of pear (cv. Louise Bonne de Jersey)

Document Type : Full Paper

Authors
Mahjabin Adel 1
Mohammad Esmail Amiri 2
Mohammad Ali Nejatian 3
Maryam Adel 1
1 Former M.Sc. Student, Faculty of Agriculture, Zanjan University, Zanjan, Iran
2 Professor, Faculty of Agriculture, Zanjan University, Zanjan, Iran
3 Associate Professor, Horticulture Crops Research Department, Qazvin Agricultural and Natural Resources Research and Education Center, AREEO, Qazvin, Iran
10.22059/ijhs.2017.137318.883
Abstract
The antioxidants are anti-oxidative system in higher plants and therefore their endogenous stimulation or exogenous application of them can be effective in overcoming on stresses. These combinations are included the kinds of enzymatic and non-enzymatic materials such as: vitamins, pigments and so on. In this present experiment, the influence of salicylic acid and chelatedmagnesium sulfate was studied on stimulatory or inhibitory effects on different antioxidants production in the pears' leaves. The experiment was conducted in the ecological conditions of Qazvin province in RCBD in 2013 and plant materials were selected pear trees belonging to Louise Bonne. The studied characteristics in this research include antioxidants of a-tocopherol, carotenoid, chlorophylls a, b and total. The results indicated that salisylic acid and chelatedmagnesium sulfate significantly affected on the content of a-tocopherol antioxidant, chlorophyll and carotenoid in the leaf pear. There was a highly significant difference (P≤ 0.01) among treatments. The changes for chlorophyll pigment were between 1.03 to 6.27 mg/g, for carotenoid between 0.06 to 1.985 mg/g and for a-tocopherol between 0.03 to 2.30 ppm. The LSD indicated that the highest amount of a-tocopherol compound was obtained in the combination of salicylic acid (0.5 g) and chelatedmagnesium sulfate (0.7 g) treatment. It can be interpreted the positive role of the aforementioned treatment in producing stimulation of this antioxidant.
Keywords
Antioxidant
carotenoid
Chlorophyll
non-enzymatic
Stress
Subjects
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Iranian Journal of Horticultural Science
Volume 48, Issue 2 - Serial Number 2
Summer 2017
Pages 285-292

  • Receive Date 17 December 2015
  • Revise Date 16 February 2016
  • Accept Date 22 February 2016