This journal provides immediate access to some articles. Volume 43(12); December 1968 Articles The Circadian Rhythm of Leaf Movement of Coleus blumei x C. frederici, a Short Day Plant. I. Under Constant Light Conditions PMCID: PMC1087098 The Circadian Rhythm of Leaf Movement of Coleus blumei x C. frederici, a Short Day Plant. II. The Effects of Light and Temperature Signals PMCID: PMC1087099 The Flowering Response of Coleus in Relation to Photoperiod and the Circadian Rhythm of Leaf Movement PMCID: PMC1087100 Enzymic Mechanism of Starch Breakdown in Germinating Rice Seeds I. An Analytical Study PMCID: PMC1087101 Purification and Some Properties of the Nitrogenase From Soybean (Glycine max Merr.) Nodules PMCID: PMC1087102 Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots PMCID: PMC1087103 CO2 Metabolism in Corn Roots. III. Inhibition of P-enolpyruvate Carboxylase by l-malate PMCID: PMC1087104 Atrazine Metabolism in Resistant Corn and Sorghum PMCID: PMC1087105 Diurnal Pattern of Water Potential in Woody Plants PMCID: PMC1087106 Comparative Studies on Plastoquinones. IV. Plastoquinones in Algae PMCID: PMC1087107 Effects of Potassium Nutrition on Ribonucleic Acid and Ribonuclease in Zea mays L. PMCID: PMC1087108 Stomatal Opening in Isolated Epidermal Strips of Vicia faba. I. Response to Light and to CO2-free Air PMCID: PMC1087109 Stomatal Opening in Isolated Epidermal Strips of Vicia faba. II. Responses to KCl Concentration and the Role of Potassium Absorption PMCID: PMC1087110 The Biogenesis of Ethylene in Penicillium Digitatum PMCID: PMC1087111 Studies on a Maize Mutant Sensitive to Low Temperature I. Influence of Temperature and Light on the Production of Chloroplast Pigments PMCID: PMC1087112 The Auxin Induced Curvature of Citrus Petals PMCID: PMC1087113 Photoreduction and Photophosphorylation with Tris-Washed Chloroplasts PMCID: PMC1087114 The Induction of Biplanar Growth in Fern Gametophytes in the Presence of RNA Base Analogues PMCID: PMC1087115 Photosynthetic Enhancement in the Diatom Phaeodactylum tricornutum PMCID: PMC1087116 Oxidative and Phosphorylative Activities of Mitochondria Isolated From Cotton Hypocotyls PMCID: PMC1087117 Studies on Ultrastructure and Purification of Isolated Plant Mitochondria PMCID: PMC1087118 Opposing Actions of Light in Seed Germination of Poa pratensis and Amaranthus arenicola PMCID: PMC1087119 Effects of Kinetin, IAA, and Gibberellin on Ethylene Production, and Their Interactions in Growth of Seedlings PMCID: PMC1087120 Inhibition of Chloroplasts by UV-Irradiation and Heat-Treatment PMCID: PMC1087121 ATP Sulfurylase Activity in the Soybean [Glycine max (L.) Merr.] PMCID: PMC1087122 Transport of the Auxin, Picloram, Through Petioles of Bean and Coleus and Stem Sections of Pea PMCID: PMC1087123 Gibberellin-like Substances From Vegetative Tissue of a Conifer, Arizona Cypress PMCID: PMC1087124 Short Communications Uptake of 86Rb and K by Excised Maize Roots PMCID: PMC1087125 Freeze-Preservation of Cultured Flax Cells Utilizing Dimethyl Sulfoxide PMCID: PMC1087126 Structure of Microbodies in Abscission Cells PMCID: PMC1087127 Effects of Storage and Aging on Properties of Phosphofructokinase From Jerusalem Artichoke Tubers PMCID: PMC1087128 Substances Essential for a Red, Far-Red Light Reversible Attachment of Mung Bean Root Tips to Glass PMCID: PMC1087129 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||