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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   fall 2017 , Volume 9 , Number 30 ; Page(s) 214 To 224.
 
Paper: 

Effect of Zn without and with Sodium Nitro-Prusside (SNP) on growth and some physiological characteristics of Eldar pine (Pinus eldarica Medw)

 
 
Author(s):  Abtin T., MIRZAEI J., Saleh Arani A., AZIMZADEH H.R.
 
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Abstract: 
Although Zn is an essential element for plants, but it is poisonous in high concentrations and affect growth disturbance. This study was performed in 2013 to investigated the effects of different concentration (0, 100, 200 and 400 mg/L) of the Zn and also done a fixed amount (750mg) of SNP on growth and some physiological parameters in Pinus eldarica. Results showed the accumulation of Zn (without SNP) in root, stem and leaves increased when concentration of Zn in soil increased. The most were measured in root (538. 80mg/kg) and the lowest in leaves (105. 73mg/kg). Different concentration of Zn did not significantly effect on chlorophyll a, b, and total chlorophyll, MDA, and proline but increased soluble sugar in root and leaves. Also, SNP increased concentration of Zn in soil significantly increased in the root, stem, leaf and root and the most content were in root (662. 36 mg/kg) and the lowest in leaves (46. 16 mg/kg). These treatments caused a significant increase in leaf proline and MDA. In general, due to the good resistance in 400 ml/l concentration and also the better accumulations in roots rather than shoots in Pinus eldarica, can use as refinement in pollutant soils. It is also recommended to evaluate the highest level of accumulation on this species in higher concentrations.
 
Keyword(s): Growth disorders,Pinus eldarica Medw,chlorophyll,phytoremediation,MDA
 
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