Green Global
Foundation   Journal
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EFFECT OF 137Cs ON THE TRANSFER OF NUTRIENT ELEMENTS AND ON GROWTH OF KALMI (Ipomoea aquatica) (Pages : 7 - 17)

A pot experiment was conducted during the month of March, 2006 to May, 2006 in the net house of the Department of Soil, Water and Environment, University of Dhaka to examine the effect of 137Cs on the growth of different parts (root and shoot) of Kalmi (Ipomoea aquatica) grown in three representative soils of Bangladesh (Pabna, Gazipur and Munshigang) having different soil characteristics. The soils belonging to three different series (Gopalpur, Bhatpara and Pagla) were used to observe the effects of 137Cs on the growth of roots and shoots of the Kalmi plant. Two treatments were used to see the effects of 137Cs on the transfer of the different nutrient elements from soil to plant body and to observe the dry weights of roots and shoots of Kalmi. The average dry weight production of Kalmi (roots and shoots) in the three soil series was reduced about 8% due to the application of 137Cs in soil and the dry weight reduction was as high as 25.70% in Gopalpur soil where 19.83% decrease in the shoot production was observed due to the application 137Cs in soil. No significant effect was observed in the case of Pagla soil. Although the nitrogen and phosphorous uptake was not hampered but the average dry weight production of Kalmi was reduced due to the imposed radiation in soil.Download