Essays about: "Olfactometer"

Showing result 1 - 5 of 14 essays containing the word Olfactometer.

  1. 1. Effects of plant-fungal interactions on volatile emission of Hordeum vulgare and aphid preference

    University essay from SLU/Dept. of Ecology

    Author : Bina Johansson; [2022]
    Keywords : volatile organic compounds; chemical communication; Trichoderma atroviride; Fusarium graminearum; Rhopalosiphum padi; biological control;

    Abstract : Barley is one of the most economically important cultivated crops in the world. However, barley is a host for many insect pests and plant pathogenic fungi which is a threat to the production. Rhopalosiphum padi is an economically important insect pest that leads to large economical losses in agricultural crops such as barley. READ MORE

  3. 2. Can alteration in host odor blends change the olfactory preferences in Spodoptera littoralis?

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

    Author : Hanna Olovsson; [2017]
    Keywords : host preference; Spodoptera littoralis; induction of feeding; cotton; olfactometer; y-tube;

    Abstract : Gustatory and olfactory stimuli have been shown to induce feeding preferences in generalist phytophagous insect species. Generalists have to process a lot of information while performing host selection and it has been suggested that this may be a limitation, while it makes the host detection slower than for specialist species that process a lower amount of information. READ MORE

  4. 3. 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

  5. 4. Feeding preferences and foraging in Larvae of Manduca sexta and Spodoptera littoralis : a laboratory study based on olfaction

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Elin Nyström; [2013]
    Keywords : Manduca sexta; Spodoptera littoralis; larvae; foraging; olfaction; larval dual choice test; induced feeding preference;

    Abstract : Larvae of Lepidopteran Manduca sexta and Spodoptera littoralis are pests of economical importance in several horticultural and agricultural crops. Knowledge of insect feeding preferences and behavior is crucial in order to find economically and ecologically sustainable solutions to the problems caused by these herbivores. READ MORE

  6. 5. Odor sensitivity in CD-1 mice for "green" odors

    University essay from Molekylär genetik

    Author : Sathish kumar Murali; [2011]
    Keywords : CD-1 mice; ―green‖ odors; Odor sensitivity and detection threshold values;

    Abstract : ―Green‖ odors comprise a group of eight structurally related aliphatic alkenals and alkenols which are characteristic for the odor of a wide variety of plant materials. Using an automated olfactometer, the olfactory detection thresholds for ―green‖ odors were determined in six CD-1 mice and compared with that of spider monkeys and human subjects. READ MORE