• Choose a colour
  • The mineral content of young tomato plants grown in nutrient solutions with systematically varied ion contents and predominantly high concentrations.

    Foreign Title : Mineralstoffgehalt junger Tomatenpflanzen nach systematischer Variation von Nährionen in vorwiegend hohen Konzentrationen.

    Author(s) : ALT, D.HACKBARTH, H. J.

    Journal article : Gartenbauwissenschaft 1970 Vol.35 pp.29-43 ref.bibl. 20

    Abstract : Young tomato plantsplantsSubject Category: Organism Names
    see more details
    were grown in nutrient solutionsnutrient solutionsSubject Category: Miscellaneous
    see more details
    in which the cationscationsSubject Category: Chemicals and Chemical Groups
    see more details
    and anionsanionsSubject Category: Chemicals and Chemical Groups
    see more details
    were systematically varied so that while any one ion pair amounted to 70 % of the total equivalent sum, the remaining 3 ion pairs amounted to 10% each. The dry matter contents of the cations (K, NH4, Ca, Mg), the anions (NO3, S, P, Cl) and total N differed according to the supply ratios. An increase in ion concentration did not necessarily lead to a proportional ion uptakeuptakeSubject Category: Miscellaneous
    see more details
    . The K content was most severely reduced by a predominant supply of NH4. A high NH4-N plant content occurred only when ammonium, especially as NH4C1, dominated in the nutrient solution. An especially high Ca content occurred with predominant Ca(H2PO4)3, whereas a lower Ca content was observed with predominant NH4 and Mg. Different K: Ca: NH4 ratios only slightly affected the Mg content of the plants. The ion ratios had no essential influence on the S content of plants provided the S supply was comparable. Very high P contents occurred with increasing concentrations of a toxic solution rich in Ca (H2PO4)2, and high P contents frequently occurred with predominant Mg and Cl supply. The lowest Cl content was observed with solutions rich in NO3. Predominant NO3 as KNO3 caused the highest, and as NH4NO3 the lowest, NO8-N contents of the plants. The reducing effect of the NH4 ions on the NO3-N content of the dry matter was also observed with a low NO3 supply. Of the anions Cl caused the lowest NO3-N content.-Inst. PflErnähr., technisch. Univ. Hannover.

    ISSN : 0016-478X

    Record Number : 19710301464

    Language of text : not specified

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Solanum lycopersicumsolanum lycopersicumSubject Category: Organism Names
    see more details

    Descriptor(s) : anionsanionsSubject Category: Chemicals and Chemical Groups
    see more details
    , calciumcalciumSubject Category: Chemicals and Chemical Groups
    see more details
    , cationscationsSubject Category: Chemicals and Chemical Groups
    see more details
    , effectseffectsSubject Category: Properties
    see more details
    , magnesiummagnesiumSubject Category: Chemicals and Chemical Groups
    see more details
    , mineral contentmineral contentSubject Category: Properties
    see more details
    , nutrient solutionsnutrient solutionsSubject Category: Miscellaneous
    see more details
    , plant compositionplant compositionSubject Category: Properties
    see more details
    , potassiumpotassiumSubject Category: Chemicals and Chemical Groups
    see more details
    , sulfursulfurSubject Category: Chemicals and Chemical Groups
    see more details
    , tomatoestomatoesSubject Category: Commodities and Products
    see more details
    , uptakeuptakeSubject Category: Miscellaneous
    see more details

    Identifier(s) : chemical constituents of plants, elemental sulphur, Lycopersicon esculentum, potassium content, sulphur

    Broader term(s) : SolanumsolanumSubject Category: Organism Names
    see more details
    , SolanaceaesolanaceaeSubject Category: Organism Names
    see more details
    , SolanalessolanalesSubject Category: Organism Names
    see more details
    , eudicotseudicotsSubject Category: Organism Names
    see more details
    , angiospermsangiospermsSubject Category: Organism Names
    see more details
    , SpermatophytaspermatophytaSubject Category: Organism Names
    see more details
    , plantsplantsSubject Category: Organism Names
    see more details
    , eukaryoteseukaryotesSubject Category: Organism Names
    see more details