This journal provides immediate access to some articles. Volume 28(1); January 1953 Articles Influence of Visible and Near Infrared Radiant Energy on Organ Development and Pigment Synthesis in Bean and Corn PMCID: PMC540350 Studies on the Chemistry of the Living Bark of the Black Locust in Relation to Its Frost Hardiness. III. The Validity of Plasmolysis and Desiccation Tests for Determining the Frost Hardiness of Bark Tissue PMCID: PMC540351 The Sprouting of Sweetgum in Relation to Season of Cutting and Carbohydrate Content PMCID: PMC540352 The Physiological Action of Smog on Plants. I. Initial Growth and Transpiration Studies PMCID: PMC540353 Some Respiratory Characteristics of the Blue-Green Alga, Anabaena PMCID: PMC540354 The Metabolism of Foliar-Applied Urea. I. Relative Rates of C14O2 Production by Certain Vegetable Plants Treated with Labeled Urea PMCID: PMC540355 The Relation of the Amino Acid Composition to the Development of Oats PMCID: PMC540356 Electrode Reactions of Isolated Chloroplast Fragments PMCID: PMC540357 Effect of Inorganic Ions and Their Conductances on Geotropic Curvature of the Avena Coleoptile PMCID: PMC540358 Filters for the Isolation of Narrow Regions in the Visible and Near-Visible Spectrum PMCID: PMC540359 Phosphogluconic Dehydrogenase in Higher Plants PMCID: PMC540360 Brief Papers: Frenching of Ragweed (Ambrosia artemisiifolia L.) PMCID: PMC540361 Effect of Stable Boron Isotopes on Growth of Tobacco in Solution Cultures PMCID: PMC540362 Low Temperature Inductions of Flowering in a Nicotiana rustica X N. tabacum Hybrid PMCID: PMC540363 The Effect of 2,4-Dichlorophenoxyacetic Acid on Phosphorylase, Phosphatase, Amylase, Catalase, and Peroxidase Activity in Wheat PMCID: PMC540364 Optimum Chloride Concentration for Malt Diastase Activity as a Function of Temperature PMCID: PMC540365 An Autoradiographic Technique for Detailed Studies with Plant Tissue PMCID: PMC540366 Note Notes PMCID: PMC540367 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||