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Effect of Foliar Application of Nano Titanium Dioxide and Ascorbic Acid on Ear Weight and some Biochemical Traits of Sweet Corn (Zea mays var saccharata) under Water Deficit Tension Conditions
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Saber Shahim Germi   , Farhad Farahvash * , Bahram Mirshekari , Ebrahim Khalilvand Behrouzyar , Mehrdad Yarnia |
| Department of Agronomy and Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran. |
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Abstract: (913 Views) |
In order to investigate the effect of foliar application of Nano Titanium dioxide and ascorbic acid on ear weight and some biochemical traits of sweet corn (Zea mays var saccharata) under water deficit tension conditions, the present experiment was conducted in split split plots in a randomized complete block design with three replications in the research station of the Faculty of Agriculture, Islamic Azad University, Tabriz Branch during the two crop years of 2016 and 2017. Experimental treatments were the main factor of water deficit tension at three levels (irrigation at field capacity level, irrigation up to 75 percent of field capacity and irrigation up to 50 percent of field capacity), sub-factor of ascorbic acid foliar application at two levels of zero, 0.05 percent and sub-sub factor of Titanium dioxide foliar application at three levels of zero, 0.02 and 0.04 percent. The results of this research showed that foliar application of 0.05 percent ascorbic acid and 0.02 percent Nano Titanium dioxide under irrigation conditions up to 50 percent field moisture increased the activity of polyphenol oxidase enzyme. Also, foliar application of 0.02 percent Nano Titanium dioxide in irrigation conditions up to 50 percent of field capacity increased the enzyme superoxide dismutase. Nano Titanium dioxide and ascorbic acid fertilizers were able to increase ear weight in all studied treatments by reducing the negative effect of water deficit tension, which indicates the positive effect of this compound on the plant. Foliar application with 0.02 percent Nano Titanium dioxide and 0.05 percent ascorbic acid with an average of 183.2 gram per plant maximum and no foliar application of both compounds with an average of 163.1 gram per plant had the lowest ear weight that caused a 12 percent increase in ear weight compared to the lack of foliar application of the above compounds.
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| Keywords: Enzyme, Ascorbic acid, Ear weight, Foliar application and Nano Titanium dioxide. |
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Full-Text [PDF 1016 kb]
(1784 Downloads)
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Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2022/01/5 | Accepted: 2021/12/31 | Published: 2021/12/31
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