This journal provides immediate access to some articles. Volume 34(6); November 1959 Articles A Soluble Pyridine Nucleotide Oxidase System from Barley Roots. PMCID: PMC541263 Growth Regulators and Flowering. II. The Cobaltous Ion. PMCID: PMC541264 Flowering in Fruit Trees and Annual Plants as Affected by Purines, Pyrimidines and Triiodobenzoic Acid. PMCID: PMC541265 Molybdenum-Manganese-Iron Antagonisms in the Nutrition of Tomato Plants. PMCID: PMC541266 Further Studies on Comparative Mobility of Labeled Herbicides. PMCID: PMC541267 Some Observations on Potassium Accumulation in Corn Root Mitochondria. PMCID: PMC541268 The Aseptic Culture of Isolated Buds of Pseudotsuga Taxifolia. PMCID: PMC541269 An Improved Technique for the Growth of Chlorella in C14O2. PMCID: PMC541270 The Effects of Triiodobenzoic Acid and Urea on the Response of Chlorotic Lemon (Citrus Limonia) Trees to Foliar Application of Iron Compounds. PMCID: PMC541271 Effect of Vernalization on Heat Resistance in Two Varieties of Peas. PMCID: PMC541272 The Possible Role of Adenosine Triphosphate in Rubidium Absorption as Revealed by the Influence of External Phosphate, Dinitrophenol and Arsenate. PMCID: PMC541273 Ribulose 1,5-Diphosphate Carboxylase Activity in Relation to Photosynthesis by Intact Leaves And Isolated Chloroplasts. PMCID: PMC541274 Estimated Contributions of Root and Shoot to the Nicotine Content of the Tobacco Plant. PMCID: PMC541275 A Wide-Range A.C. Bridge for Determining Injury and Death. PMCID: PMC541276 Nitrogen Mobilization in Pea Seedlings. PMCID: PMC541277 Bound Water and Frost Hardiness. PMCID: PMC541278 News and Notes PMCID: PMC541279 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||