Essays about: "Silene latifolia"

Found 4 essays containing the words Silene latifolia.

  1. 1. Vitblära tar över Gotland : en sammanställning av kunskapsläget kring dess biologi och bekämpning

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Sally Karlsson Bondesson; [2022]
    Keywords : bekämpning; biologi; demonstrationsförsök; enkätstudie; förebyggande åtgärder; gröda; konkurrens; lantbrukare; Silene latifolia subsp. alba Mill. ; vitblära; växtföljd;

    Abstract : Vitblära (Silene latifolia subsp. alba (Mill.) Greuter & Burdet) är ett relativt vanligt förekommande örtogräs i Europa och Nordamerika som på senare år blivit ett stort problem på Gotland. READ MORE

  3. 2. Does size matter? : A study on pollen size distribution and pollen viability in Silene latifolia and S. dioica

    University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Elliot Örjes; [2021]
    Keywords : Silene latifolia; silene dioica; pollen size; pollen tube; pollen viability;

    Abstract : Pollen size dimorphism, i.e., when a plant produces more than one size of pollen, has been observed in several plant families but the underlying mechanisms have rarely been discussed. One of the hypotheses is that the smaller pollen produced by individuals with bimodal pollen size distributions are dead or non-viable. READ MORE

  4. 3. An investigation into trait differentiation within and between two closely related Silene species.

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Daniel Connaghan; [2017]
    Keywords : Silene; speciation; ecological differentiation;

    Abstract : Ecological differentiation and adaptation are processes that can drive divergence and speciation. Measuring ecologically revenant traits can help to identify possible targets of natural selection that may have mediated ecological differentiation. READ MORE

  5. 4. Which is the costlier sex? : Sexual dimorphism and resource allocation in a dioecious herb, Silene dioica

    University essay from Institutionen för ekologi, miljö och geovetenskap

    Author : Elisabet Åkerlund; [2011]
    Keywords : sexual dimorphism; resource allocation; cost of reproduction;

    Abstract : Life-history theory proposes that different activities, such as growth, maintenance and reproduction compete for limited resources and therefore, life-history traits are bound together by physiological trade-offs. In dioecious species, females are assumed to invest a higher amount of resources in reproduction in comparison with males and this higher investment in reproduction is then assumed to have numerous consequences for the expression of other life-history traits. READ MORE