Sökning: "LANTBRUKSVETENSKAPER"

Visar resultat 16 - 20 av 1445 avhandlingar innehållade ordet LANTBRUKSVETENSKAPER.

1. 16. Crop production without fossil fuel : production systems for tractor fuel and mineral nitrogen based on biomass

   Författare :Serina Ahlgren; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : .... LÄS MER

3. 17. Organic dairy production : herd characteristics and genotype by environment interactions

   Författare :Therese Ahlman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The aim of this thesis was to gain further knowledge about the performance of cows in organic dairy production and their ability to adapt to the organic production environment. Milk production traits, fertility traits, somatic cell count (SCC) and longevity traits were analysed in organic and conventional herds and the reasons for culling in the two systems were investigated. LÄS MER

4. 18. Stand development and growth in uneven-aged Norway spruce and multi-layered Scots pine forests in boreal Sweden

   Författare :Martin Ahlström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The use of the selection system has always been a marginal part of Swedish forestry, and so has research about the system under Swedish conditions. However, the interest in Sweden for uneven-aged forest management has increased because of a rising concern for the ecological and aesthetical consequences from use of the dominating rotation forests system, which creates even-aged forest and has clear-cutting as primary harvesting method. LÄS MER

5. 19. New insights into plant amino acid transport and its contribution to nitrogen nutrition

   Författare :Iftikhar Ahmad; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Nitrogen (N) is a crucial element for plant growth and development, as it is a key constituent of numerous plant metabolites and structural components. However, most plant N is in the form of amino acids, which are building blocks of proteins, precursors of many secondary metabolites and the “currency” of N within plants (i.e. LÄS MER

7. 20. Genetic variation in resistance to fungal storage diseases in apple : inoculation-based screening, transcriptomics and biochemistry

   Författare :Masoud Ahmadi Afzadi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Apple is one of the economically and culturally most important fruit crops and has many health-related benefits. Apple production is, however, sensitive to several fungal diseases including blue mold, caused by Penicillium expansum. LÄS MER