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The protective role of Zinc in boron detoxification under the presence or absence of auxin as function of rooting response of mung bean (Vigna ratiata L. Wilczek)
الدور الوقائي للزنك في إزالة سمية البورون بوجود غياب الأوكسين بدلالة استجابة التجذير في عقل الماش

Authors: nasim niematan murizatan نسيم نعمة مرزة --- Khaled Ali Hussein خالد علي حسين --- Abdullah Ibrahim Shahid عبدالله إبراهيم شهيد
Journal: Albahir journal مجلة الباهر ISSN: 23125721 Year: 2015 Volume: 2 Issue: 3,4 Pages: 17-25
Publisher: AL-Abbas Holy Shrine العتبة العباسية المقدسة

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Abstract

Abstract The role of Zinc in alleviating B-toxicity in terms of adventitious root formation (ARF) in cuttings of mung bean was studied. The toxic level of B in addition, to the promotory conc. of Znsalt was determined. Two of Zn-salts were tested (sulphate, and chloride), auxin was supplied as inductive treatment to enhance rooting response. 1. The toxic level of boron was 150 (µg/ml), this reduced growth parameters in terms of rooting response to 50% compared to control. 2. Zinc sulfate at conc. 1 (ppm) and Zinc chloride at 5 (ppm) developed the highest rooting response in mung bean cuttings. 3. For Boron detoxification, Zn-(sulphate and chloride) were supplied as pre-treatment, posttreatment or simultaneously with toxic-B. The best treatment for boron detoxification occurred completely by supplying Zinc sulphate and chloride prior to toxic-B treatment (pre-treatment), but after supplying auxin inductive treatment. 4. The protective role of Zinc-sulphate and chloride significantly enhanced the average of root number/cutting to its highest level in control treatment.

اﳋلاﺻة ﺇﻥ ﺩﻭﺭ ﺍﻟﺰﻧﻚ ﰲ ﲣﻔﻴﺾ ﺳﻤﻴﺔ ﺍﻟﺒﻮﺭﻭﻥ ﺑﺪﻻﻟﺔ ﺗﻜﻮﻳﻦ ﺍﳉﺬﻭﺭ ﺍﻟﻌﺮﺿﻴﺔ ﰲ ﻋﻘﻞ ﺍﳌﺎﺵ ﻗﺪ ﺩﺭﺱ ﺑﻌﺪ ﲢﺪﻳﺪ ﺍﻟﱰﻛﻴﺰ ﺍﻟﺴﺎﻡ ﻣﻦ ﺍﻟﺒﻮﺭﻭﻥ ﻭﺍﻟﱰﺍﻛﻴﺰ ﺍﳌﺤﻔﺰﺓ ﻟﻜﻞ ﻣﻦ ﻛﱪﻳﺘﺎﺕ ﻭﻛﻠﻮﺭﻳﺪ ﺍﻟﺰﻧﻚ ﺣﻴﺚ ﺟﻬﺰ ﺍﻻﻭﻛﺴﲔ ﻛﻤﻌﺎﻣﻠﺔ ﺍﺳﺘﺤﺜﺎﺛﻴﺔ ﻟﺘﺤﻔﻴﺰ ﺍﻟﺘﺠﺬﻳﺮ ﻭﻗﺪ ﺑﻴﻨﺖ ﺍﻟﻨﺘﺎﺋﺞ ﺍﻵﰐ: ( ﺣﻴﺚ ﺃﺧﺘﺰﻝ ﻣﺆﴍ ﺍﻟﻨﻤﻮﺍﳌﺘﻤﺜﻞ ﺑﻌﺪﺩ ﺍﳉﺬﻭﺭ ﺍﻟﻌﺮﺿﻴﺔ  .1 1- )ﻣﺎﻳﻜﺮﻭﻏﺮﺍﻡ. ﻣﻞ150ﺍﻥ ﺍﻟﱰﻛﻴﺰ ﺍﻟﺴﺎﻡ ﻣﻦ ﺍﻟﺒﻮﺭﻭﻥ ﺍﳌﺘﻜﺸﻔﺔ ﰲ ﺍﻟﻌﻘﻞ ﺍﱃ ﺍﻟﻨﺼﻒ ﺗﻘﺮﻳﺒﺎ ﻣﻘﺎﺭﻧﺔ ﺑﻌﻘﻞ ﺍﻟﺴﻴﻄﺮﺓ. ﺃﻋﲆ ﺍﺳﺘﺠﺎﺑﺔ ﻟﺘﺠﺬﻳﺮ ﻋﻘﻞ ﺍﳌﺎﺵ.  .2 (ppm) 5 ﻳﻠﻴﻬﺎ ﻛﻠﻮﺭﻳﺪ ﺍﻟﺰﻧﻚ ﻋﻨﺪ ﺍﻟﱰﻛﻴﺰ (ppm) 1ﺣﻘﻘﺖ ﻛﱪﻳﺘﺎﺕ ﺍﻟﺰﻧﻚ ﻋﻨﺪ ﺍﻟﱰﻛﻴﺰ ﺍﻭﲠﺪﻑ ﲣﻔﻴﻒ ﺳﻤﻴﺔ ﺍﻟﺒﻮﺭﻭﻥ ﻓﻘﺪ ﺟﻬﺰﺕ ﻛﱪﻳﺘﺎﺕ ﻭﻛﻠﻮﺭﻳﺪ ﺍﻟﺰﻧﻚ ﻗﺒﻞ ﻭﺑﻌﺪ ﺍﻟﺘﻌﺮﺽ ﻟﻠﺴﻤﻴﺔ ﺍﻟﺒﻮﺭﻭﻥ ﻭﺳﻮﻳﺔ  .3 ﻭﻛﺎﻧﺖ ﺍﳌﻌﺎﻣﻠﺔ ﺍﻷﻓﻀﻞ ﰲ ﺍﺯﺍﻟﺔ ﺳﻤﻴﺔ ﺍﻟﺒﻮﺭﻭﻥ ﻋﻨﺪ ﲡﻬﻴﺰ ﺍﻟﻜﱪﻳﺘﺎﺕ ﺍﻭﻛﻠﻮﺭﻳﺪ ﺍﻟﺰﻧﻚ ﺑﻮﺟﻮﺩ ﺍﻻﻭﻛﺴﲔ ﻗﺒﻞ ﺍﻟﺘﻌﺮﺽ ﻟﻠﱰﻛﻴﺰ ﺍﻟﺴﺎﻡ ﺣﻴﺚ ﲤﺖ ﺍﺯﺍﻟﺔ ﺳﻤﻴﺔ ﺍﻟﺒﻮﺭﻭﻥ ﺑﺎﻟﻜﺎﻣﻞ ﻟﻜﻦ ﻣﻦ ﺧﻼﻝ ﲡﻬﻴﺰﻫﺎ ﻻﺣﻘﺎﹰ ﺑﺎﻻﻭﻛﺴﲔ. ﹰ  .4 ﺍﻥ ﺍﻟﺪﻭﺭ ﺍﻟﻮﻗﺎﺋﻲ ﻟﻠﻜﱪﻳﺘﺎﺕ ﻭﻛﻠﻮﺭﻳﺪ ﺍﻟﺰﻧﻚ ﲢﻘﻖ ﻣﻦ ﺧﻼﻝ ﺍﻟﺘﺸﺠﻴﻊ ﺍﳌﻌﻨﻮﻱ ﳌﻌﺪﻝ ﻋﺪﺩ ﺍﳉﺬﻭﺭ ﺍﳌﺘﻜﺸﻔﺔ ﻭﺻﻮﻻ ﺍﱃ ﻣﺴﺘﻮﺍﻫﺎ ﰲ ﻣﻌﺎﻣﻠﺔ ﺍﻟﺴﻴﻄﺮﺓ.

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