Inorganic Plant Poisons and Stimulants

Name: Inorganic Plant Poisons and Stimulants
Author: Brenchley, Winifred Elsie

Brenchley, Winifred Elsie

Growth (Plants); Plants -- Effect of poisons on

Germination, effect of arsenic on, 60
      effect of boron on, 72
      effect of copper on, 27, 28
      effect of manganese on, 84
      effect of zinc on, 43
      of seeds in sawdust, 11

    Grading of seeds, 11

    Growth in copper-distilled water, 17
      of peas in water cultures, 11


    Hydrochloric acid, 22

    Hydroquinone, 91

    Hypothesis of universal stimulation, 93


    Iodine, 2, 91

    Individuality of plants, error due to, 13
      of species, 61

    Interaction between soil and poison, 9

    Iron, 31, 49
      oxide, 78
      sesquioxide, 84
      sulphate, 48, 81, 85, 88


    Laccase, 91, 95

    Lack of control over field experiments, 9

    Lead, 10, 26, 42, 44


    Magnesium carbonate, 83, 84, 87
      chloride, 20
      sulphate, 1

    Manganese as top-dressing, 89
      chloride, 86, 88
      commercial value of, 88
      cytological action of, 81, 82
      dioxide, 84, 87
      essential to Coniferae, 80
      in Australian soils, 83
      in leaves, deposition of, 82
      in organic combination, 79
      iodide, 83, 84
      manuring, after-effects of, 88
      nitrate, 83, 84
      oxide, 78, 79, 83, 84, 86, 88
      phosphate, 79, 83, 86
      retardation of ripening by, 82, 85
      sulphate, 81–89, 94

    Masking effect of inorganic food salts, 4, 20

    Mercuric chloride, 22
      oxide, 41

    Mercury, 26

    Metallic oxides, 78

    Methods;
      field experiments, 9
      sand cultures, 8
      soil cultures in pots, 9
      water cultures, 7, 11

    Mode of entry of poisons into plants, 4


    Nickel, 24, 50

    Nucleinic combination, 79

    Nutrient solutions, composition, 13


    Oligodynamic action, 28

    Over-mineralisation of plants, 71


    Phosphoric acid, 53, 54, 62, 64

    Photo-synthesis, effect of copper on, 32

    Potassium hydrate, 22

    Presence of arsenic in animals, 51
      in plants, 51
      of boron in plants, 65
      of copper in plants, 15
      of manganese in plants, 78
      of zinc in plants, 36

    Pyrogallol, 91


    Raulin’s solution, 49

    Reproduction of poisoned plants, 40


    Silver nitrate, 22

    Sodium chloride, 20, 44
      hydroxide, 22
      nitrate, 4

    Sterile cultures, 24

    Stimulation, by injection of copper solutions, 31
      by small doses of poisons, 2
      definition of, 2
      local, 47
      of Aspergillus niger, 50
      of fungi by copper, 34
      of plants by arsenic, 61
      of plants by boron, 73
      of plants by copper (negative), 28
      of plants by manganese, 84
      of plants by zinc, 45–47
      physiological considerations of manganese, 90

    Strontium sulphate, 5

    Sugar, 22, 31, 48, 49, 50, 68

    Sulphur, flowers of, 10


    Thymol, 22

    Toxic action, effect of arsenic, 52
      effect of boron, 67
      effect of copper, 17
      effect of light on, 44
      effect of manganese, 81
      effect of zinc, 38
      equivalent, 18
      limits of plant poisons, estimation of, 26

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Inorganic Plant Poisons and StimulantsBrenchley, Winifred Elsie

Science

Inorganic Plant Poisons and Stimulants

Brenchley, Winifred Elsie

Growth (Plants); Plants -- Effect of poisons on

Germination, effect of arsenic on, 60
      effect of boron on, 72
      effect of copper on, 27, 28
      effect of manganese on, 84
      effect of zinc on, 43
      of seeds in sawdust, 11

    Grading of seeds, 11

    Growth in copper-distilled water, 17
      of peas in water cultures, 11


    Hydrochloric acid, 22

    Hydroquinone, 91

    Hypothesis of universal stimulation, 93


    Iodine, 2, 91

    Individuality of plants, error due to, 13
      of species, 61

    Interaction between soil and poison, 9

    Iron, 31, 49
      oxide, 78
      sesquioxide, 84
      sulphate, 48, 81, 85, 88


    Laccase, 91, 95

    Lack of control over field experiments, 9

    Lead, 10, 26, 42, 44


    Magnesium carbonate, 83, 84, 87
      chloride, 20
      sulphate, 1

    Manganese as top-dressing, 89
      chloride, 86, 88
      commercial value of, 88
      cytological action of, 81, 82
      dioxide, 84, 87
      essential to Coniferae, 80
      in Australian soils, 83
      in leaves, deposition of, 82
      in organic combination, 79
      iodide, 83, 84
      manuring, after-effects of, 88
      nitrate, 83, 84
      oxide, 78, 79, 83, 84, 86, 88
      phosphate, 79, 83, 86
      retardation of ripening by, 82, 85
      sulphate, 81–89, 94

    Masking effect of inorganic food salts, 4, 20

    Mercuric chloride, 22
      oxide, 41

    Mercury, 26

    Metallic oxides, 78

    Methods;
      field experiments, 9
      sand cultures, 8
      soil cultures in pots, 9
      water cultures, 7, 11

    Mode of entry of poisons into plants, 4


    Nickel, 24, 50

    Nucleinic combination, 79

    Nutrient solutions, composition, 13


    Oligodynamic action, 28

    Over-mineralisation of plants, 71


    Phosphoric acid, 53, 54, 62, 64

    Photo-synthesis, effect of copper on, 32

    Potassium hydrate, 22

    Presence of arsenic in animals, 51
      in plants, 51
      of boron in plants, 65
      of copper in plants, 15
      of manganese in plants, 78
      of zinc in plants, 36

    Pyrogallol, 91


    Raulin’s solution, 49

    Reproduction of poisoned plants, 40


    Silver nitrate, 22

    Sodium chloride, 20, 44
      hydroxide, 22
      nitrate, 4

    Sterile cultures, 24

    Stimulation, by injection of copper solutions, 31
      by small doses of poisons, 2
      definition of, 2
      local, 47
      of Aspergillus niger, 50
      of fungi by copper, 34
      of plants by arsenic, 61
      of plants by boron, 73
      of plants by copper (negative), 28
      of plants by manganese, 84
      of plants by zinc, 45–47
      physiological considerations of manganese, 90

    Strontium sulphate, 5

    Sugar, 22, 31, 48, 49, 50, 68

    Sulphur, flowers of, 10


    Thymol, 22

    Toxic action, effect of arsenic, 52
      effect of boron, 67
      effect of copper, 17
      effect of light on, 44
      effect of manganese, 81
      effect of zinc, 38
      equivalent, 18
      limits of plant poisons, estimation of, 26

Public-domain text, read in full here on John Shaqi.

Inorganic Plant Poisons and Stimulants

Inorganic Plant Poisons and Stimulants

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