Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

EFFECT OF 137Cs ON THE TRANSFER OF NUTRIENT ELEMENTS AND ON GROWTH OF LETTUCE (Lactuca sativa) (Pages : 18 - 30)

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 of University of Dhaka to examine the effects of 137Cs on the growth of different parts (root and shoot) of lettuce (Lactuca sativa) and nutrient uptake by lettuce grown in three representative soils of Bangladesh (Pabna, Gazipur and Munshigang) having different soil characteristics (pH, organic matter content, clay content and CEC). The soils belonging to three different series were used to see the effects of 137Cs on the dry weight production of roots and shoots of the lettuce plant and two treatments of 137Cs were used in this purpose. From the study it has been observed that the imposed radiation in the soils reduced the uptake of nitrogen by 15.19%, potassium by 15.67% and calcium by 42.58%. The average dry weight production of shoot of lettuce in the three soils was also decreased by 46.83% though no significant growth reduction of root was noticed due to the imposed radiation in soil. Imposed radiation in soil reduced the average dry weight production of lettuce (root and shoot) by 24.22% and showed the negative impact on the growth of lettuce plant.Download