Pflanzenphysiologie

Ergebnisse 13 – 24 von 31 werden angezeigtNach Durchschnittsbewertung sortiert

Interacting Stresses on Plants in a Changing Climate
139,09 € In den Warenkorb
Intercellular Communication in Plants: Studies on Plasmodesmata
139,09 € In den Warenkorb
General Index
139,09 € In den Warenkorb
Funktionelle Pflanzenanatomie
49,99 € In den Warenkorb
Physiological Plant Pathology
129,99 € In den Warenkorb
Plasmodesmata
117,69 € In den Warenkorb
Sauteria 6: Tagungsbeiträge der Tagung der ostalpin-dinarischen Gesellschaft für Vegetationskunde 1992 in Grafenau (Bayrischer Wald) und der 7. österreichischen Botanikertagung 1993 in Neukirchen am Großvenediger (Salzburg)
19,00 € In den Warenkorb
Nitric Oxide in Plant Physiology
105,00 € In den Warenkorb
$Honighäuschen (Bonn) - In biological literature, several definitions of quantitative autoradio graphy are given. The term is defined as either the determination and com parison of the density of silver grains above various structures or under varying conditions, or the determination of absolute quantities of radio activity. In both these cases, photometric measurement serves for more rapid and more exact evaluation of grain densities than would be possible by visual counting of the grains. The equipment generally used for the photometric measurement of silver grains consists of a microscope, a photocell, an electronic amplifier system and a display unit. Grains can be made accessible to photometric evaluation by various kinds of microscopic illumination: 1. Substage bright-field illumination. 2. Substage dark-field illumination. 3. Incident dark-field illumination. 4. Vertical bright-field illumination. With all these types of illumination, the relationship between the luminous flux I absorbed by the film, scattered into the objective and reflected or diffracted, and the flux 10 which is not affected by the film is used as a measure of grain density. Since these are differential measurements, the light beam I transmitted by the film is in itself a measure of grain density if the luminous flux 10 incident on the grains is kept constant. This approach has been used in a large number of measuring setups.$
Microautoradiography and Electron Probe Analysis
117,69 € In den Warenkorb
Edelrassen des Waldes
74,99 € In den Warenkorb
Neuartige Lebensformen an den Thermalquellen der Tiefsee
54,99 € In den Warenkorb
Plant Biology of the Basin and Range
139,09 € In den Warenkorb

Asiatische Hornisse in der Region Bonn und Rhein-Sieg aufgetaucht

Pflanzenphysiologie

Interacting Stresses on Plants in a Changing Climate

Intercellular Communication in Plants: Studies on Plasmodesmata

General Index

Funktionelle Pflanzenanatomie

Physiological Plant Pathology

Plasmodesmata

Sauteria 6: Tagungsbeiträge der Tagung der ostalpin-dinarischen Gesellschaft für Vegetationskunde 1992 in Grafenau (Bayrischer Wald) und der 7. österreichischen Botanikertagung 1993 in Neukirchen am Großvenediger (Salzburg)

Nitric Oxide in Plant Physiology

Microautoradiography and Electron Probe Analysis

Edelrassen des Waldes

Neuartige Lebensformen an den Thermalquellen der Tiefsee

Plant Biology of the Basin and Range

Querdenker, Wespen und aculeate Hymenopteren

Dachdecker trifft Baumhummel – was tun?

Filialisierung bei Hornissen

Wildbienen, Bienenhotels und Kindergärten – Gehören Wildbienen zu Deutschland?

Ein Hornissennest in einem Rollladenkasten

Hilfe, eine riesige Hornisse baut bei mir