Sökning: "EC50"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet EC50.

  1. 1. Efficacy of silver nanoparticles against rice blast disease and farmers perception about its management in Bangladesh

    Master-uppsats, SLU/Department of Biosystems and Technology (from 130101)

    Författare :Rumana Akter; [2019]
    Nyckelord :rice; blast disease; management; mycelial growth; silver nanoparticles;

    Sammanfattning : Rice blast caused by Magnaporthe grisea is one of the major and recurrent threats for sustainable rice production in Bangladesh. To mitigate this problem, the current study was aimed to investigate the efficacy of silver nanoparticles against rice blast disease and farmers’ perception or knowledge about rice blast disease management in Bangladesh. LÄS MER

  2. 2. Toxikologisk tillväxtstudie av sötvattenalgen Raphidocelis subcapitata : En jämförelse mellan flödescytometer NovoCyte och automatisk cellräknare TC20

    Kandidat-uppsats, Högskolan Kristianstad/Fakulteten för naturvetenskap

    Författare :Eva Andersson; [2018]
    Nyckelord :Toxicity test; subcapitata; EC50; ISO 8692; potassium dichromate; flow cytometry; cell counter; growth inhibition; Toxicitetstest; subcapitata; EC50; ISO 8692; kaliumdikromat; flödescytometer; cellräknare; tillväxtinhibering;

    Sammanfattning : Biologiska toxicitetstester utförs genom att exponera en testorganism för olika koncentrationer av kemikalier under en bestämd period. Det finns akuta toxicitetstester och kroniska. Resultat från akuta studier presenteras som EC50-värde (Effect Concentration, affecting 50 % of the population). LÄS MER

  3. 3. The impact of phosphorus and temperature on the toxicity of zinc on benthic diatom

    Kandidat-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Josabeth Ström; [2016]
    Nyckelord :benthic diatom; zinc; temperature; phosphorus; toxicity; ecological status;

    Sammanfattning : The current index, IPS, developed for benthic diatoms and used for assigning the ecological status of streams in Sweden reflects on levels of nutrients and organic pollution. Metals are not considered in the index, which leads to the risk that metal contaminated streams can be assigned a high ecological status based on this index. LÄS MER

  4. 4. Toxicity of chlorantraniliprole to the Collembola Folsomia candida : toxicodynamics and effects of organic matter content

    Master-uppsats, Mittuniversitetet/Avdelningen för naturvetenskap

    Författare :Kristina Berggren; [2013]
    Nyckelord :;

    Sammanfattning : Toxicity of pesticides to non-target organisms determines their impact on natural environments. And to find pesticides with a new, target-specific mode of action, which are safe to farmers and organisms in the surrounding environment, is important when developing new pesticides. LÄS MER

  5. 5. Combination effects of metals in soil - acute toxicity test of bacteria with the leucine incorporation method

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Ylva Sandberg; [2012]
    Nyckelord :Earth and Environmental Sciences;

    Sammanfattning : Within the field of ecotoxicology there is a concept called combination effects. There are two different approaches to combination effects, independent action (IA) and concentration addition (CA). The common assumption in both approaches is that there are no interactions between the substances within the mixture. LÄS MER