Sökning: "stem rust"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden stem rust.

  1. 1. A look into stem rust resistance breeding

    Kandidat-uppsats, SLU/Dept. of Plant Breeding (from 130101)

    Författare :Lucas Sydh Sjögren; [2023]
    Nyckelord :Stem rust; Black rust; Puccinia graminis f. sp. tritici; Plant breeding; Ug99; TKTTF; Plant resistance; Social challenges; Political challenges; Practical challenges;

    Sammanfattning : Wheat is one of the largest food commodities globally, but the cultivation of wheat faces many challenges. Among these is the stem rust disease, which historically has caused mass starvation and misery. This thesis explores the stem rust disease in wheat, and the plant breeding for the potential of resistance to stem rust in the future. LÄS MER

  3. 2. Skadebild och fördelning av törskate på träd- och beståndsnivå hos tallungskog

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Moa Kinnunen; Björn Jönsson; [2022]
    Nyckelord :Törskate; Törskaterost; Svampskador; Rostsvamp; Multiskadad ungskog; Skadebild av törskate; Cronartium pini; Cronartium flaccidum; Peridermum pini; Resin-top disease; Rust fungi; Scots pine bister rust; Two-needle pine stem rust; Pine rust;

    Sammanfattning : Törskate är ett alltmer uppmärksammat problem i framförallt Sveriges norra delar, där 12 till 15 % av de naturliga avgångarna av tall anses orsakade av svampen. Detta motsvarar en produktionsförlust på ca 350 000 kubikmeter talltimmer årligen. LÄS MER

  4. 3. Population structure of Puccinia graminis, the cause of stem rust on wheat, barley, and rye in Sweden

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

    Författare :Clara Kjellström; [2021]
    Nyckelord :plant pathology; plant disease; crop protection; fungi; P; graminis f.sp. tritci; P. graminis f.sp. secale; P. graminis f.sp. hordei;

    Sammanfattning : Rust fungi belong to the phylum Basidiomycetes, order Uredinales cause damage on almost all plants, including cereal crops. Some of the species within the genus Puccinia causes rust disease on cereal crops. One example of a disease from this genus is Puccinia graminis, which historically has caused severe damage in cereal crop production. LÄS MER

  5. 4. Genotypic variation of Puccinia graminis infecting barberry and grasses

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Karolina Jörgensen; [2016]
    Nyckelord :Puccini graminis; population biology; barberry; Berberis spp.; phylogeny; small sequence repeats;

    Sammanfattning : Stem rust on cereals is a large problem in parts of the world, and it may reduce the yields significantly. It is caused by Puccinia graminis, a heteroecious basidiomycete with 365 known telial host grass species. Puccinia graminis reproduces asexually on the grass host. LÄS MER

  7. 5. Förekomst av törskate (Cronartium flaccidum, Peridermium pini) på tall (Pinus sylvestris) i relation till markfuktighet och fältskikt : en studie om 2000-talets törskateepidemi i norra Sverige

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Mikael Dufberg; Anders Lundholm; [2012]
    Nyckelord :skada; skadefrekvens; bördighet; fuktighet; ståndortsfaktorer; skogskovall; Melampyrum sylvaticum;

    Sammanfattning : Resin-top disease is a rust fungi that occurs both as a host alternating form, Cronartium flaccidum G. Winter., and as a non-host alternating form, Peridermium pini Pers. The host alternating form can use a variety of hosts but the most commonly used species in the boreal forest is Melampyrum sylvaticum. LÄS MER