Essays about: "Odour collection"

Found 4 essays containing the words Odour collection.

  1. 1. Behavioural studies and collection of volatiles to identify the pheromone(s) of the great Capricorn (Cerambyx cerdo)

    University essay from SLU/Dept. of Plant Protection Biology

    Author : Fredric Svensson; [2016]
    Keywords : Cerambyx cerdo; Cerambycidae; great Capricorn; chemical ecology;

    Abstract : This work was aimed at identifying the pheromone component(s) of the great Capricorn longhorn beetle (Cerambyx cerdo). Volatile samples from beetles were obtained by means of collection of headspace volatiles from the animals, and by direct solvent extraction of body parts, and analysed by gas chromatography-mass spectrometry (GC-MS) and gas chromatography- Electroanntennography (GC-EAG). READ MORE

  3. 2. The effect of domestication on insect resistance in cotton : bioassays with the insect herbivores Spodoptera littoralis and Agriotes spp.

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Joakim Sjöstrand; [2014]
    Keywords : Spodoptera littoralis; Agriotes lineatus; insect resistance; cotton; gossypium;

    Abstract : A plant's defensive ability against herbivore attack can be influenced by many different factors, one of them being domestication. During human selection to improve the yield of plants, the resistance against herbivore attack can have been lowered, due to a trade-off for use of resources between these traits in the plants. READ MORE

  4. 3. Differences in host plant preferences and olfactory physiology between populations of the moth Spodoptera littoralis established in Egypt and Benin

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Louise Wyke; [2013]
    Keywords : Odour collection; electroantennographic recordings; Spodoptera littoralis strains; oviposition preferences; larval development; diets;

    Abstract : This study was made to compare and distinguish any differences in olfactory recognition and host plant adaptation between two strains of cotton leaf worm, Spodoptera littoralis. The populations used were established in Egypt and Benin, Africa. READ MORE

  5. 4. Urinsorterande toaletter : rensning av stopp samt uppsamling och attityder

    University essay from SLU/Dept. of Energy and Technology

    Author : Magnus Lindgren; [1999]
    Keywords : Urinsorterade toaletter; Stopp; Uppsamling; Attityder; kretslopp;

    Abstract : It is important that the current urine separating systems are evaluated to allow improvements to be made and consequently increase their future propagation. In order to increase the knowledge about urine separating systems this study was made. READ MORE