Impact of foliar silicon application on yield attributes of wheat (Triticum aestivum L.) under water deficit environment

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Research Paper 01/08/2019
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Impact of foliar silicon application on yield attributes of wheat (Triticum aestivum L.) under water deficit environment

Annum Khalid, Naeem Iqbal, Muhammad Tariq Javed, Makhdoom Hussain, Muhammad Yasin Ashraf
Int. J. Biosci.15( 2), 328-339, August 2019.
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The consequences of climate change, particularly in the form of water deficiency are now evident in different parts of the world that negatively affecting the crop productivity. The current study was conducted to explore the involvement of exogenously applied silicon in reducing the negative effects of drought stress on yield of wheat. The wheat cultivar “Faisalabad- 08” was subjected to two water regimes (normal irrigation and no irrigation) and four levels of silicon including no spray, 0, 0.01 and 0.1 mM. All the silicon levels were applied at three different stages of wheat growth. The sources of the silicon used in the current experiment were sodium silicate, potassium silicate and silicic acid. At maturity of crop different yield parameters (number of tiller per plant, number of spike per plant, number of spikelet per plant, spike length, number of grain per plant, number of grain per spike, number of grain per spikelet, single grain weight and yield per hector) were recorded. The results indicated that the yields of related attributes were significantly reduced under water deficit environment. The application of silicon from the two different sources sodium silicate and potassium silicate was more beneficial to alleviate the negative effects of water deficit on wheat yield. Sodium silicate (0.01 and 0.1 mM) and potassium silicate (0.1 mM) were found more beneficial for enhancing wheat yield under water stress to enhance wheat productivity.


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