. Effects of the rays of radium on plants . Summary When a sealed glass tube containing .52 gm. of radium bromide of 10,000 X is laid over, and in contact with soaked wheat grains placed to germinate, an acceleration of respiration results, but no effect could be detected when the grains were similarly exposed to radio-tellurium in a sealed glass tube. A like exposure to rays from 5 mg. of radium bromide of 1,500,000 x also resulted in an acceleration of respiration, but not to so great a degree as was caused by the preparation of 10,000 activity. If the grains were exposed dry, before soaking
. Effects of the rays of radium on plants . Summary When a sealed glass tube containing .52 gm. of radium bromide of 10,000 X is laid over, and in contact with soaked wheat grains placed to germinate, an acceleration of respiration results, but no effect could be detected when the grains were similarly exposed to radio-tellurium in a sealed glass tube. A like exposure to rays from 5 mg. of radium bromide of 1,500,000 x also resulted in an acceleration of respiration, but not to so great a degree as was caused by the preparation of 10,000 activity. If the grains were exposed dry, before soaking, for 54 hrs. to rays from the radium of 1,500,000 x , their respiration was at first retarded, but this was followed by recovery and marked acceleration.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants
