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This journal provides immediate access to some articles. Volume 21(3); July 1946 Articles EFFECTS OF NITROGEN ON GROWTH AND ASH CONSTITUENTS OF ANANAS COMOSUS (L.) MERR. PMCID: PMC437276 NITROGEN METABOLISM OF CORN (ZEA MAYS) AS INFLUENCED BY AMMONIUM NUTRITION PMCID: PMC437277 THE EFFECT OF COPPER DEFICIENCY ON THE NITROGEN METABOLISM AND OIL SYNTHESIS OF THE TUNG TREE PMCID: PMC437278 EFFECT OF OXYGEN AND SODIUM THIOGYCOLLATE ON GROWTH OF RICE PMCID: PMC437279 FACTORS INFLUENCING THE VOLATILE OIL CONTENT OF THE PEEL OF IMMATURE AND MATURE ORANGES PMCID: PMC437280 THE EFFECT OF TOP ENVIRONMENT AND FLOWERING UPON TOP-ROOT RATIOS PMCID: PMC437281 SELECTIVITY OF HERBICIDES PMCID: PMC437282 NOTE ON THE EFFECT OF UNILATERAL ILLUMINATION ON THE TRANSVERSE ELECTRICAL POLARITY IN THE AVENA COLEOPTILE PMCID: PMC437283 Brief Papers: THE EFFECTS OF AN INCREASE IN PRESSURE ON THE ACTION OF DIASTASE IN VITRO PMCID: PMC437284 RIDGES AND SECTORS INDUCED IN OLIVE FRUITS BY FUMIGATION WITH HYDROCYANIC ACID PMCID: PMC437285 Note NOTES PMCID: PMC437286 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||
