Dynamic studies on photosynthetic and growth characteristics of Angecila dahurcia STUDIES ON PHOTOSYNTHETIC CHARACTERISTICS IN RICE HYBRID PROGENIES AND THEIR PARENTS Ⅱ. HILL REACTION, PHOTOPHOSPHORYLATION, ATPase ACTlVITY AND ATP CONTENT IN LEAVES Dynamic studies on photosynthetic characteristics and growth development of Perilla frutescens STUDY ON HILL REACTION OF HYBRID RICE AT SEEDLING STAGE