110 research outputs found

    Sjukdomar och skadedjur pÄ dill

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    Dill Àr en gammal kulturvÀxt som hÀrstammar frÄn FrÀmre Asien och Indien som ocksÄ har förekommit naturligt i de europeiska lÀnderna runt Medelhavet. I Egypten och i Romarriket anvÀndes dill frÀmst som medicinalvÀxt. Hit upp till Norden kom dillen pÄ 1100-1200-talet och har alltsedan dess varit en viktig kryddvÀxt. SÄvÀl blad- som krondill odlas i Sverige. Bladdill odlas bÄde för fÄrskvarnförsÀljning och till djupfrysning. Krondill sÀljs numera huvudsakligen pÄ fÀrskvarnmarknaden sedan livsmedelsindustrins odling av krondill för inlÀggningar har upphört

    Bladmögel pÄ gurka

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    Bladmögel kan angripa bÄde frilands-och vÀxthusgurka med fÄrödande verkan. Förutom gurka kan Àven melon, asiagurka samt i mindre utstrÀckning squash och pumpa angripas. Sjukdomen betraktas sedan 1984 som allmÀnt förekommande i södra Sverige. Om sjukdomen etableras tidigt under skördesÀsongen kan den orsaka omfattande angrepp

    Vitmögel

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    Vitmögel, som orsakas av svampen Belerotium cepivorum, Ă€r en jordburen parasit som Ă€r spridd i alla vĂ€rldsdelar. Svampen angriper endast vĂ€xter inom slĂ€ktetAllium och huvudsakligen löksorter odlade för konsumtion. Den vanligamatlöken (kepalök), sĂ€ttlök sĂ„vĂ€l som frösĂ„dd lök, angrips i stor utstrĂ€ckning. Även vitlök och sebarlottenlök Ă€r utsatta för angrepp medan purjolök angrips i betydligt mindre omfattning. Vitmögelsvampen kan förorsaka omfattande skördeförluster och dess angrepp kan leda till stora kostnader vid sortering och lagring. Svampen kan ligga vilande i Ă„tskilliga Ă„r för att vid gynnsam Ă„rsmĂ„n bli ytterst aggressiv

    Trips

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    Tripsar Àr allmÀnt förekommande skadedjur, som förökar och sprider sig snabbt. De tycker om torr och varm omgivning. Tripsar gör Äverkan pÄ ett stort antal kulturer, sÄvÀl vÀxthuskulturer (gurka, melon, gröna vÀxter m.fi. prydnadsvÀxter) som frilandsvÀxter (kÄl, purjolök, Àrter, rosor m.fi.). Ett 100-tal tripsarter lÀr förekomma i Sverige. NÄgra vanliga skadegörare pÄ trÀdgÄrdsvÀxter Àr: Nejliktrips (Thrips tabaci), rosentrips (T. fuscipennis), bandad vÀxthustrips (Parthenothrips dracaenae), gladiolustrips (T. simplex), Àrttrips (Kakothrips pisivorus J. U n der 1985 fick vi in en ny tripsart i vÄra vÀxthus och bland vÄra rumsvÀxter, den amerikanska blomtripsen (Frankliniella occidentalis). Denhar sedan dess kommit att bli en allvarlig skadegörare pÄ prydnadsvÀxter i vÀxthus

    Mjöldagg

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    Jordloppor

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    Factor VIII:C concentrate purified from plasma using monoclonal antibodies: human studies

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    Conventional clotting factor concentrates have, until recently, been of intermediate purity, containing less than 1% of the coagulation factor, and greater than 99% extraneous plasma proteins such as fibrinogen, fibronectin, gamma globulins, and traces of many others. We report here the results of a new factor VIII concentrate that is purified from human plasma using a mouse monoclonal antibody to factor VIII:vWF in an affinity chromatography system. The resultant concentrate has an activity of between 3,000 and 5,000 U/mg protein before albumin is added as a stabilizer. Seven patients with severe hemophilia A and no inhibitor who were positive for antibody to human immunodeficiency virus (HIV) have been treated solely with this concentrate for over 24 months. Factor usage in these patients has ranged from 611 U/kg/yr to 2,022 U/kg/yr. These patients have infused approximately once per week on the average, most often for joint hemorrhages. The efficacy of the concentrate is excellent. No allergic reactions have occurred and no factor VIII antibodies have developed. In these seven patients mean CD4 counts stabilized (856 +/- 619 at screen v 778 +/- 686 at 24 months) and there was reversal of skin test anergy. In a comparison group on conventional intermediate purity concentrate chosen retrospectively decreases in mean CD4 cell counts similarly did not occur. However, the number of the comparison patients who were anergic increased over the course of the study. These observations indicate the possibility that more highly purified concentrates may stabilize immune function in HIV seropositive patients

    Stratigraphy and palaeosol profiles of the Upper Triassic Isfjorden Member, Svalbard

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    The Isfjorden Member forms the upper part of the De Geerdalen Formation in Svalbard and is well exposed throughout central and eastern Spitsbergen, including the island of Wilhelmþya. We examine palaeosol profiles identified in the Isfjorden Member and compare these to profiles seen in the remainder of the De Geerdalen Formation. In addition, we address the nuances of the Isfjorden Member, its practicality as a stratigraphic interval and attempt to constrain the unit’s presence, as well as the nature of its lower boundary throughout outcrops in Svalbard. The Isfjorden Member is easily recognised by its conspicuous beds of alternating red and green coloured palaeosols, occasional caliche profiles and bivalve coquina beds. These beds have commonly been used to identify the unit in outcrop and we explore their relevance to the formal stratigraphic definition. The lower boundary is typically difficult to identify, especially when using the original definition; however, we find that placing it at the top of the last major sandstone in the De Geerdalen Formation is a practical solution. The boundary is conformable throughout Spitsbergen with no obvious erosion or break in sedimentation observed.The abundance, thickness and maturity of palaeosols increases upwards through the De Geerdalen Formation. Mature palaeosol and occasional caliche horizons are found to dominate within the Isfjorden Member. Immature palaeosols are in general constrained to the strata below. The position of palaeosols in relation to sedimentary successions is typically restricted to floodplain and interdistributary bay deposits, or atop upper shoreface deposits. The transition from immature palaeosols with common histosols to mature palaeosols and caliche reflects the development of the delta plain from a dynamic paralic setting to a morestable proximal system.publishedVersio
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