Sökning: "seedling development"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden seedling development.

  1. 11. Growth of genetically improved stands of Norway spruce, Scots pine and loblolly pine

    Författare :Samuel Egbäck; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Genetically improved material of Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.) and loblolly pine (Pinus taeda L. LÄS MER

  3. 12. Grain Yield and Quality Traits of Rice (Oryza sativa L.) Cultivars under Intermittent Drought and Contrasting Temperatures : physiological, biochemical and molecular characterisation

    Författare :Alphonsine Mukamuhirwa; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Rice (Oryza sativa) has evolved in a semi-aquatic tropical environment and therefore thrives better in a water intensive system and optimal temperature between 25 and 30°C. With the future climate change, frequent droughts and heat stress are predicted to happen simultaneously in field but little is known about their combined effects on rice productivity and quality. LÄS MER

  4. 13. Functional analysis of homeodomain-leucine zipper transcription factors in Arabidopsis thaliana

    Författare :Henrik Johannesson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; fysiologisk botanik; Physiological Botany;

    Sammanfattning : Homeodomain-leucine zipper (HDZip) proteins constitute a large family of transcription factors apparently unique to plants. To elucidate the function of these factors, the biochemical properties in vitro as well as the effects on transgenic plants when expressed at high levels were studied. LÄS MER

  5. 14. Forest restoration on degraded lands in Laos

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

    Sammanfattning : Deforestation and land-use change have been, and still are, major threats to biodiversity and ecosystem services in the tropics, and forest areas are being lost at high rates in many countries in Southeast Asia, including Laos. Progress in the development and application of forest policies and programs, coupled with increasing trends to end damaging practices associated with swidden cultivation have created opportunities to restore forests. LÄS MER

  7. 15. Effects of site preparation and stump harvest on carbon dynamics in forest soils

    Författare :Kristina Mjöfors; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Efforts are being made to substitute fossil fuels with renewable alternatives to address increasing concerns regarding global climate change driven by anthropogenic emissions of CO2 and other greenhouse gases. Stumps of harvested trees could make a significant contribution to these efforts in Scandinavia. LÄS MER