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Paper Information

Journal:   PAJOUHESH-VA-SAZANDEGI   FALL 2008 , Volume 21 , Number 3 (80 IN AGRONOMY AND HORTICULTURE); Page(s) 203 To 210.
 
Paper: 

INVESTIGATION OF THE EFFECT OF DIFFERENT CONCENTRATION OF CRUDE OIL ON GROWTH PARAMETERS OF TALL FESCUE (FESTUCA ARUNDINACEU) AND ALFALFA (MEDICAGO SATIVA) IN THE CALCAREOUS SOIL

 
 
Author(s):  SHAHRIARI M.H.*, SAVAGHEBI FIROOZABADI GH., MINAI TEHRANI D.
 
* SOIL SCIENCE ENGINEERING DEPARTMENT, COLLEGE OF AGRICULTURE AND NATURAL RESOURSE, TEHRAN UNIVERSITY, KARAJ, IRAN
 
Abstract: 

Hydrocarbons contaminants depend on their type and concentration can cause variable toxicity in soils, on the other hand different kind of plants also response concentration of contaminant differently, because of the diversity of physiological and morphological characteristics. In this study the effect of different levels of light crude oil was investigated on emergence and plant biomass of tall fescue (Festuca arundinaceu) and alfalfa (Medicago sativa). Tall fescue and alfalfa were planted in pots of uncontaminated and contaminated (1, 3, 5, 7 and 10 percent crude oil) soil, and kept to be grown in lab for 4 months. The results indicated that emergence and plant biomass were significantly different in contaminated and uncontaminated soil. Growth rate of plants indicated signs of toxicity and reduced in contaminated soil. Alfalfa showed low resistance to toxicity of petroleum hydrocarbons compare to tall fescue so that the seedlings of alfalfa died after a period of time in soil contaminated with ten percent of crude oil.

 
Keyword(s): CONTAMINANT, LIGHT CRUDE OIL, PETROLEUM HYDROCARBONS, TALL FESCUE, ALFALFA, BIOMASS
 
References: 
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