Sökning: "Late blight"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden Late blight.

  1. 1. Late infection of Fusarium graminearum in winter wheat grown under different nitrogen regimes

    Master-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Baraa Alkhaled; [2018]
    Nyckelord :F. graminearum; winter wheat; N fertilizer; late infection; DON; protein content;

    Sammanfattning : Fusarium spp. infection is a serious risk in wheat cultivation worldwide. In addition of reduce grain yield and quality, it also leads to grain and chaff contamination by toxic metabolites (mycotoxins). The mycotoxin deoxynivalenol (DON) is among the most important mycotoxins in Swedish wheat production and is mainly produced by F. LÄS MER

  2. 2. Model selection and optimization experiment of a feild trial with agricultural data using Python

    Kandidat-uppsats, Lunds universitet/Matematik LTH

    Författare :Lukas Bengtsson; [2018]
    Nyckelord :ADMM; Elastic Net; Model selection; optimization; Mathematics and Statistics;

    Sammanfattning : Potato cultivation is vast for many agricultures in southern Sweden. What many might not be aware of, is how much pesticides which are used in the cultivation process. In "Late blight prediction and analysis"[1] predictions of late-blight attacks was modelled on potato-corps using Elastic Net among other methods. LÄS MER

  3. 3. Early detection and recommendation of higher precision in treatment of late blight in potato crops by using drone photos

    Master-uppsats, Lunds universitet/Riskhantering (CI)

    Författare :Anna Lindéus; [2018]
    Nyckelord :Bayesian network; Decision Support systems; Drone photo; Late blight; Potato; Precision Agriculture; Remote sensing; Risk classification model; Risk prediction; Technology and Engineering;

    Sammanfattning : In this thesis an evaluation was performed for the potential use of drone photos in Decision Support System (DSS) to detect outbreak of late blight and provide recommend treatment with fungicides. Late blight is a common crop infection on potato in Sweden. A DSS with and without information from drones were developed in three steps. LÄS MER

  4. 4. Bekämpning av potatisbladmögel i ekologisk produktion

    Kandidat-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Sigrid Johansson; [2018]
    Nyckelord :potatismögel; phytophthora infestans; bekämpning; ekologisk produktion;

    Sammanfattning : Potatisbladmögel orsakas av den aggressiva oomyceten Phytophthora infestans, som om den får fäste i ett fält snabbt kan förstöra grödan och orsaka stora ekonomiska konsekvenser för lantbrukaren. Då patogenen är aggressiv behövs strategier för att bekämpa den och i den ekologiska potatisodlingen i Sverige finns inga effektiva bekämpningsmedel, utan lantbrukare har endast odlingstekniska åtgärder att tillgå. LÄS MER

  5. 5. Late Blight Prediction and Analysis

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Lukas Bengtsson; [2017]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : Phytophthora infestans cause severe losses in potato cultivation. Currently one of the most effective ways to reduce the related loss is using fungicides. For these to have optimal effect they must be applied approximately 10 days before the first visual sign of late blight. LÄS MER