ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 906-907 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ion, hydroxy-aquofo'sethylenediamine cobalt(III) [A] which is stable between PH 6 and 8 reacts with a-amino-acids and peptides to form complexes B as shown: Fig.1. Absorption spectrum for [Coen2(H2O)(OH)][N03]2 (A)\ ' , absorption spectrum of (A) and tris buffer (C). Both run at pH 7-3 in ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 210 (1966), S. 253-255 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RAPID fluctuations are sometimes observed in the received carrier frequencies of ionospherically propagated high-frequency radio waves1-4. Some of these frequency fluctuations, which can be readily identified from the records, have been called sudden frequency deviations, and have been attributed ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 205 (1965), S. 306-307 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Coleus is particularly suitable for an investigation of this kind because the main vascular bundles are situated at the angles of the square stem. We used CaldwelFs split root technique on Coleus frederici. Cuttings were taken and a fortnight later the rooted stumps were carefully split from the ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 22 (1969), S. 0 
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In upland cotton (Gossypium hirsutum L.) certain varieties are available with the mutant character “okra” leaves. These deeply lobed leaves were found to have thinner boundary layers than their normal analogues. Apparent photosynthesis and transpiration measurements were made in field-grown stands under a variety of light intensities and carbon dioxide levels to assess the effect of leaf boundary layer diffusion resistance on photosynthetic efficiency. The thinner boundary layers associated with deeply lobed “okra” cotton failed to euhance carbon fixation rates per unit land area. It was concluded that the leaf boundary layer resistance under field conditions is small compared with the total CO2 diffusion resistance.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The flux of water, $$f_{{\text{H}}_{\text{2}} {\text{O}}}$$ , to the xylem of exuding root systems of Ricinus communis was controlled using a range of mannitol concentrations permitting the influence of this water flux on the potassium flux, f K, to be studied. The relationship between $$f_{{\text{H}}_{\text{2}} {\text{O}}}$$ and f K thus obtained was investigated, for a number of external concentrations of potassium, Cm, supplied as potassium nitrate. An analysis of these data indicated the presence of a water dependent and a water independent f K both of which varied with Cm. The water dependent f K shows a parabolic relationship with Cm for Cm values 〈1 mM followed by a sharp inflection and decline at higher Cm values whereas the water independent f K shows an hyperbolic relationship over the same range of Cm values. Uptake of potassium by exuding root systems was measured and shown to be dependent on the solute potential of the medium. The uptake was also shown to exhibit a dual absorption isotherm the kinetics of which indicate a low Km system (system 1) and a high Km system (system 2). The Km value obtained for system 1 is very similar to that obtained for the water independent f K. It is postulated that the water independent f K is contributed by that portion of f K arriving in the stele via the cortical symplast and is directly dependent on Cm. The water dependent f K is contributed by those ions moved across the root in response to centripetal water movement through the cortical cell walls.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Planta 83 (1968), S. 390-392 
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 5 (1967), S. 623-626 
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Plant foods for human nutrition 13 (1966), S. 98-104 
    ISSN: 1573-9104
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Studien über die Anreicherung von Mineralstoffen im Blattgewebe vom Mais haben gezeigt, daß bei einigen Elementen die Höhe der Anreicherung teilweise unter genetischer Kontrolle steht. Dieser genetische Hintergrund ist von viel weniger komplexer Natur als derjenige, der den Körnerertrag beeinflußt. Ausserdem ist die Höhe der Anreicherung in der Nachkommenschaft von Einzelkreuzungsbastarden im allgemeinen abhängig von den Inzuchtlinien, von denen sie abstammten. Die Höhe der Anreicherung gewisser Mineralstoffe scheint mit der Resistenz gegen die Dörrfleckenkrankheit (Helminthosporium turcicum Pass.) in Zusammenhang zu stehen. Zwischen allen untersuchten Mineralstoffen bestand nur eine einzige Relation. Es war die positive Korrelation zwischen Strontium und Kalzium. Untersuchungen der Genotypen mit hohem bzw. niedrigem Phosphorsäuregehalt von Böden verschiedenen Phosphorsäuregehalts zeigten, daß keine Wechselwirkung zwischen Genotyp und Düngungsstufe besteht. Für die meisten Mineralstoffe stimmt die Höhe der Anreicherung in den Hüllblättern der Maiskolben mit der in der ganzen Pflanze überein. Wenig Übereinstimmung war aber zwischen der Anreicherung der Mineralstoffe in den Maiskörnern und in den vegetativen Teilen der Pflanze vorhanden.
    Abstract: Résumé Des études sur l'accumulation d'éléments chimiques dans le tissu des feuilles de Maïs ont montré que le niveau d'accumulation de certains éléments est controlé partiellement par des facteurs génétiques. Ce facteur génétique est de charactère moins complexe que celui qui conditionne le rendement en grains du Maïs. En outre, le niveau d'accumulation chez les Hybrides de descendance de simple croisement fut lié en général au taux les lignes observé les quelles ils furent le produit. Le niveau d'accumulation de certains éléments semble être associé à la résistance contre l'helminthosporiose (Helminthosporium turcicum Pass.). De tous les éléments étudies, la corrélation du strontium et du calcium fut la seule relation valable. L'évaluation des niveaux hauts et bas chez des génotypes accumulant du phosphore, lorsqu'ils sont cultivés dans des sols à différentes teneur en phosphore, a montré qu'il n'y a pas d'interaction au niveau de fertilité du génotype x. Le taux d'accumulation dans les feuilles près des épis fut étroitement lié à celui de la plante entière. La relation entre l'accumulation d'éléments dans le grainét la partie végétale de la plante était insignifiante.
    Notes: Summary Studies of chemical element accumulation in leaf tissue of corn have shown that the level of accumulation is under partial genetic control. Differences in the accumulation level of some elements have been shown to have some relationship to resistance to corn leaf blight (H. turcicum Pass.). One can infer from the large differences in level of accumulation of chemical elements in the F3 from selected F2 plants, that breeding efforts to select for low accumulating genotypes for some elements could serve as a mechanism of reducing the intake of radioactive elements in the food chain should the level of these elements become serious.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 1967-11-01
    Print ISSN: 0002-1962
    Electronic ISSN: 1435-0645
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1968-02-12
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...