بررسی اثرات محلول پاشی سالیسیلیک اسید بر صفات مورفولوژیکی و بیوشیمیایی استویا ((Stevia rebaudiana
Publish place: Plant Process and Function، Vol: 9، Issue: 39
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JISPP-9-39_016
تاریخ نمایه سازی: 13 دی 1400
Abstract:
A greenhouse study was conducted to evaluate of salicylic acid foliar effect on morphological and biochemical characters of Stevia (Stevia rebaudiana) based on a Completely Randomized Design (CRD) experiment with three replications in Qazvin, Iran in ۲۰۱۶. The treatments of this research were defined as salicylic acid foliar levels as ۰ (control), ۱۰۰, ۳۰۰ and ۶۰۰ µM which were applied three months after transplanting. Evaluated characters were as plant height, branch number, plant dry weight, leaves dry weight, branches dry weight, the ratio of leaf to total dry weight, the percentage and yield of stevioside, rebaudioside-A, rebaudioside-B and rebaudioside-c. The results of this study revealed that foliar levels of salicylic acid had a significant effect on all of the evaluated characters except for SPAD index. The treatment of foliar ۱۰۰ µM salicylic acid led to a significant increase in plant height, stevioside percentage, rebaudioside C yield and its percentage compared with control treatment (۱۸.۲%, ۹۱.۷%, ۱۶۰% and ۱۸۶%, respectively). By increasing the concentration of salicylic acid foliar level to ۳۰۰ µM, the branches dry weight, leaves dry weight, plant dry weight, stevioside yield, rebaudioside. A percentage and its yield were increased in comparison to control treatment (۳.۹%, ۱۰.۳%, ۷.۰%, ۸۴.۶, ۷۸.۳ and ۱۰۰%, respectively). Finally the treatment of ۶۰۰ µM salicylic acid foliar level was significantly led to an increase in lateral branches number, the ratio of leaves dry weight to branches dry weight, rebaudioside-B percentage and its yield compared to control treatment (۳۶۵.۸%, ۴۳.۰%, ۳۸۳.۳and ۳۴۴.۴%, respectively). Therefore, a concentration of ۳۰۰ μM foliar application of salicylic acid can be effective for increasing the quantitative and qualitative performance of Stevia.
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Authors
حسن جلیلوند شیرخانی تبار
Department of Plant Production and Genetics, Agricultural Faculty, University of Zanjan, Zanjan, Iran
افشین توکلی
Department of Plant Production and Genetics, Agricultural Faculty, University of Zanjan, Zanjan, Iran
فواد مرادی
Agricultural Biotechnology Research Institute of Iran
فرید شکاری
Department of Plant Production and Genetics, Agricultural Faculty, University of Zanjan, Zanjan, Iran
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