Essays about: "R. padi"

Showing result 1 - 5 of 6 essays containing the words R. padi.

  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. Naturliga fiender till havrebladlöss vid en kantzon med varierad vegetation : en fältstudie av naturliga fienders förekomst vid två olika utformningar av vegetation och deras attraktion till metylsalicylat

    University essay from SLU/Dept. of Ecology

    Author : Louise Malmquist; [2017]
    Keywords : Araneae; Carabidae; Coccinellidae; ekosystemtjänster; havrebladlöss; integrerat växtskydd; IPM; metylsalicylat; MeSA; Staphylinidae;

    Abstract : Många växtskadegörare finns inom jordbruket som kan orsaka skördeförluster. Dessa kan bland annat bekämpas med kemiska växtskyddsmedel. Pågående utfasning av aktiva substanser kräver dock utveckling av alternativa bekämpningsmetoder. READ MORE

  4. 3. The role of midfield islets in pest control

    University essay from Institutionen för naturgeografi och kvartärgeologi (INK)

    Author : Sabine Sigfridsson; [2013]
    Keywords : Agriculture; aphid interaction; biological pest control; bird cherry-oat aphid; cereal aphids; ecosystem services; landscape diversity; midfield islets; natural enemies; non-crop habitats; predators; Prunus padus; Rhopalosiphum padi; Biodiversitet; biologisk bekämpningsstrategi; ekosystemtjänster; havrebladlus; heterogent landskap; hägg; jordbruk; landskapsekologi; lusreducering; naturliga fiender; nyttoinsekter; predatorer; Prunus padus; Rhopalosiphum padi; skadeinsekter; åkerholmar.;

    Abstract : During last century rising populations and changed market preferences have led to large structuralchanges in agriculture in the developed world. Most conventional cultivation methods involve theproduction of few monoculture crops within a homogenous landscape, where pesticides and inorganicfertilizers are used to increase yields. READ MORE

  5. 4. Plant chemical signalling affecting aphid-plant interactions

    University essay from SLU/Horticulture (until 121231)

    Author : Erika Qvarfordt; [2009]
    Keywords : plant-plant interactions; barley; aphids; root exudates; induced defence;

    Abstract : Aphid-plant interaction are complex processes where much still remains to be explored. This project tested the capacity of aphid-infested barley, Hordeum vulgare (L.), to induce defencelike responses in neighbouring plants via chemical signals, making them less acceptable to the bird cherry-oat aphid Rhopalosiphum padi (L.). READ MORE

  6. 5. Analysis of gene expression in barley upon aphid attack

    University essay from Institutionen för livsvetenskaper

    Author : Nicolas Richerioux; [2007]
    Keywords : aphids; barley; R. padi; defense reactions; gene regulation; genomic PCR;

    Abstract : Since plants can not escape their predators by walking, they use some other defense systems, like induction or repression of defense genes. A microarray experiment performed with barley attacked by the bird cherry-oat aphid (Rhopalosiphum padi), led to the hypothesis that contig 16360 (similar to ser/thr kinases) could be linked with the resistance of barley against R. READ MORE