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Effect of Arsenic and Nitrogen Application on Grain Yield and Some Physiological Parameters of Safflower (Carthamus Tinctorius L.)

Mostafa Heidari1 and Sepideh Mohamadi4
1.Agronomy and plant breeding Dept, University of Shahrood, Shahrood, P.O.Box:3619995161, Iran
2.Agronomy and plant breeding Dept, University of Zabol, Iran
Abstract—Arsenic causes physiological disorders in plants. In order to study effects of arsenic and nitrogen on safflower parameters, a plot experiment as completely randomized factorial design with three replicates was conducted in a greenhouse at university of Zabol, Iran. The nitrogen treatment was; N1=75, N2=150 and N3=225 kg N ha-1, and arsenic levels was A1=0, A2=30, A3=60 and A4=90 mg/kg.soil. Results showed grain yield was significantly affected by interaction nitrogen×arsenic and the highest grain yield was obtained at the N2A3 treatment. Data showed that application of nitrogen and arsenic had significantly effects on yield components (biological yield and number of seed per plant). By increasing arsenic concentration from A1 to A4, yield components decreased but by application of nitrogen, especial until N2 level, these components increased. Arsenic and nitrogen application, significantly affected on carbohydrate and chlorophyll content in leaves. Under arsenic treatment, chlorophyll and carbohydrate content increased.

Index Terms—arsenic, nitrogen, agronomy traits, safflower

Cite: Mostafa Heidari and Sepideh Mohamadi, "Effect of Arsenic and Nitrogen Application on Grain Yield and Some Physiological Parameters of Safflower (Carthamus Tinctorius L.)," Journal of Advanced Agricultural Technologies, Vol. 1, No. 1, pp. 48-51, June 2014. Doi: 10.12720/joaat.1.1.48-51
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