14C trace 第1页

THE RELATIONSHIP BETWEEN PHOTOSYNTHETIC RATE AND YIELD OF DENSELY PLANTING CORN STUDIES ON THE EFFECT OF RICE NODAL ROOTS OVER THE GROUND ON LATE GROWTH OF RICE BY ~(32)P AND 14C THE MESUREMENT OF PHOTOSYNTHETIC RATE OF PANAX GINSENG WITH ~(14)C TRACER METHOD