Sökning: "breeding sites"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden breeding sites.

  1. 1. Quantitative Genetics and Genomic Selection of Scots pine

    Författare :Ainhoa Calleja-Rodriguez; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The final objective of tree improvement programs is to increase the frequency of favourable alleles in a population, for the traits of interest within the breeding programs. To achieve this, it is crucial to decompose the phenotypic variance accurately into its genetic and environmental components in order to obtain a precise estimation of genetic parameters and to increase genetic gains. LÄS MER

  3. 2. Monitoring important soil-borne plant pathogens in Swedish crop production using real-time PCR

    Författare :Charlotta Almquist; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The global demand for food will increase considerably in the nearest future and among the major constraints to agricultural productivity are biotic stresses caused by microorganisms. In this thesis, the causal agents of four of the most important soil-borne diseases threatening the Swedish production of oilseed rape, sugar beets and red clover were selected as targets for developing diagnostic assays using real-time PCR. LÄS MER

  4. 3. Sustainable Kelp Aquaculture in Sweden

    Författare :Wouter Visch; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biofouling; cryopreservation; ecosystem services; environmental impact; extractive aquaculture; gametophytes; kelp; population diversity; Saccharina latissima; seaweed cultivation; selective breeding; site selection;

    Sammanfattning : Seaweed aquaculture is gaining more interest worldwide, including Europe. However, despite its long coast seaweed farming is still very minor in Sweden. LÄS MER

  5. 4. Developing the basis of a breeding program for sustainable Rufiji tilapia aquaculture in Tanzania

    Författare :Christer Simon Nyinondi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Tanzania has a rich natural fauna of tilapiine fish. However, a proper management of tilapia farming is lacking. Use of inappropriate technology to produce seed and inadequate extension efforts resulted in a poor production output from aquaculture. LÄS MER

  7. 5. Across landscapes and seascapes : The movement ecology of diving and flying guillemots and gulls during breeding

    Författare :Thomas J. Evans; Evolutionär ekologi; []
    Nyckelord :Uria aalge; Larus fuscus; Laridae; animal flight; foraging ecology; movement ecology; seabirds;

    Sammanfattning : Most seabirds breed colonially, at which time they make central-place foraging trips. Parents must collect food both for themselves and for egg production/chick-rearing. LÄS MER