Contents: DNA synthesis by plant and bacteriod cells in detached soybean nodules / Shirley McKee, Janoid cells in detached soybean nodules / Shirley McKee, Janet Peters and Marvin R. Lamborg -- The effect of water stress on nitrogenfixation efficiency of field-grown soybeans / Jih-Min Sung-- Subtropical Rhizobium-legume symbiosis. 1. Nodulation and growth of soybeans in relation to Rhizobium strain and soil PH / Liang-Ping Lin, Cing-Hoen Huang and Hsin Su