title: Influence of purines and pyrimidines on cold hardiness of plants. IV. An analysis of the chemistry of cold hardiness in alfalfa when growth is regulated by chemicals.
mesh_terms: D000222:Adaptation, Physiological; D000643:Ammonium Chloride / Q000494:pharmacology; D002241:Carbohydrates / Q000032:analysis; D003080:Cold Temperature; D003596:Cytosine / Q000494:pharmacology; D006147:Guanine / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D000455:Medicago sativa / Q000187:drug effects / Q000254:growth & development*; D009696:Nucleic Acids / Q000032:analysis; D010937:Plant Growth Regulators / Q000494:pharmacology*; D010940:Plant Proteins / Q000032:analysis; D011687:Purines / Q000494:pharmacology*; D011743:Pyrimidines / Q000494:pharmacology*; D013045:Species Specificity
chemical_list: D002241:Carbohydrates; D009696:Nucleic Acids; D010937:Plant Growth Regulators; D010940:Plant Proteins; D011687:Purines; D011743:Pyrimidines; D000643:Ammonium Chloride; D006147:Guanine; D003596:Cytosine