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Advances in Crop Science and Technology

.: Home > Advances in Crop Science and Technology > 2015 > Volume 3 Number 4 > Bhagawan Bharali1 *, Bhupendra Haloi1 , Jayashree Chutia1 , Sonbeer Chack1 and Koilash Hazarika2

Susceptibility of Some Wheat (Triticum aestivum L.) Varieties to Aerosols of Oxidised and Reduced Nitrogen

Bhagawan Bharali1 *, Bhupendra Haloi1 , Jayashree Chutia1 , Sonbeer Chack1 and Koilash Hazarika2
1Department of Crop physiology, Faculty of Agriculture, AAU, Jorhat, Assam, India 2Instruction-Cum-Research Farm, AAU, Jorhat, India
Abstract :

In a pot culture (2011), aerosols of oxidized nitrogen (NaNO2 ) @20 kgha-1 yr-1 (≈200 ppm), reduced nitrogen (NH4 Cl) @10 kg-1 hayr-1 (≈100 ppm) and distilled water (control) were sprayed (1500 cm3 plant-1 of each solution) weekly at different days after sowing (DAS) to study their impacts on physiology of wheat varieties (Ankur Omkar, Sonalika and K-306). In a field trial (2012), the simulated N-aerosols @ 200 ppm and 400 ppm (1000 cm3 m-2 for each solution) along with a control were sprayed to population of the best variety (Ankur Omkar) at four different growth stages. In both pot and field experiments foliar feeding of aerosols with lower dose at the earlier growth stages influenced nitrogen use efficiency and yield. Fluctuations of cellular cations (Ca2+, K+) or peroxidase activity were caused by the aerosols and altered membrane permeability.

Keywords :
Cations; Nitrogen use efficiency; Nitrate reductase; Net photosynthesis; Peroxidase; Membrane permeability

Date Deposited : 02 Apr 2016 11:54

Last Modified : 04 Apr 2016 11:30

Official URL: http://1Ethiopian Sugar Corporation Research and Training 15, Wonji, Ethiopia 2Bayer Trade Representative Office 1/1065, Addis Ababa, Ethiopia

Volume 3, Number 4, November 2015 , ISSN ISSN: 2329-8863

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