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    Wyświetlanie 1-6 z 6
    Tytuł:
    Fusarium equiseti as one of the main Fusarium species causing wilt and root rot of chickpeas in Morocco
    Autorzy:
    El Hazzat, Naila
    Adnani, Manal
    Soukaina, Msairi
    El Alaoui, My Abdelaziz
    Mouden, Najoua
    Chliyeh, Mohamed
    Boughribil, Said
    Selmaoui, Karima
    Ouazzani Touhami, Amina
    Douira, Allal
    Powiązania:
    https://bibliotekanauki.pl/articles/11543480.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    chickpeas
    inoculation
    Fusarium equiseti
    rot
    wilting
    Opis:
    Fungal isolates of Fusarium were collected from symptomatic chickpea (Cicer arietinum L.) plants growing in fields within Souk Tlat commune in the Gharb region. Morphological and molecular characterizations were performed of the fungal isolate N3 obtained from a chickpea plant. PCR amplification and sequencing of the internal transcribed spacer using the primers ITS1 and ITS4 was applied to identify the fungal isolate N3. The maximum similarity index of the fungus was found to be 99.33% with Fusarium equiseti (accession no. MT111122). In the pathogenicity test, both chickpea seed dip inoculation and soil infestation by the spore suspension of Fusarium isolate were adopted. Four weeks after chickpea seed inoculation, few plants emerged and those that emerged were stunted. A high percentage of inoculated seeds did not emerge and showed accentuated rot symptoms. Eight weeks after sowing seeds in infested soil, the obtained chickpea seedlings displayed root necrosis, browning at the crown, and wilting. In addition, these plants showed a foliar alteration index of 0.395. The re-isolation was positive for different parts of chickpea plants for both seed and soil inoculation. Fusarium equiseti isolate decreased the length of the root and aerial parts, and number of leaves and branches of the inoculated chickpea plants either by seed inoculation or soil infestation with values of 0.91 cm and 19.73 cm, 1.29 cm and 19.44 cm, 1.11 and 18.66, and 0.0 and 2.08 respectively, whereas the corresponding values for the control plants were 27.16 and 28.33 cm, 29.05 and 31.05 cm, 24.21 and 25.66, and 3.50 and 3.11, respectively. To the best of our knowledge, this is the first report of F. equiseti on chickpea (Cicer arietinum L.) in Morocco.
    Źródło:
    Acta Mycologica; 2022, 57; 576
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe
    Autorzy:
    Polláková, Nora
    Šimanský, Vladimír
    Jonczak, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1838319.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    available water
    drought
    porosity
    soil aeration
    soil texture
    wilting point
    Opis:
    Suitable soil and environmental conditions are the main prerequisites for successful growth of plants. Generally, all soil properties are substantially affected by textural composition. Therefore, the objective of the study was to test the interrelationships between particle size distribution and such physical soil properties, which usually predetermine the survival/death of plants, since they significantly affect the content and availability of water and air. Textural composition and physical soil properties were studied in profiles under monocultures of selected exotic trees in Arboretum Mlyňany, Slovakia. The results showed that medium-textured dominated in topsoils, whereas heavy-textured classes were dominant in luvic and stagnic horizons. Evaluation of entire profiles had confirmed standard, expected relationships between the individual grain fractions and soil physical properties. However, differences have occurred when the correlations between texture and physical properties in individual horizons were evaluated. Considering entire soil profiles, increased sand content significantly supported drainage of rainwater and soil aeration; silt contributed to increase the total porosity and aeration as well as available water capacity; clay contributed to the decrease in the available water capacity, total, and particularly coarse porosity and aeration, and to rise water retention, as well as the values of the wilting point. The results showed silt as key fraction providing suitable hydrophysical properties for the survival and growth of trees introduced in Arboretum. In compacted luvic and stagnic horizons, silt was significantly involved in the formation of total, and particularly coarse porosity and thereby increase soil aeration, while conversely, in loose topsoils just silt fraction significantly contributed to the reduction of coarse pores and increase of fine capillary pores and therefore water retention. In loose eluvial horizons, the silt contributed to significant increases in capillary porosity and water availability, which is essential in terms of meeting the plant needs.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 6; 244-252
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe
    Autorzy:
    Polláková, Nora
    Šimanský, Vladimír
    Jonczak, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1838349.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    available water
    drought
    porosity
    soil aeration
    soil texture
    wilting point
    Opis:
    Suitable soil and environmental conditions are the main prerequisites for successful growth of plants. Generally, all soil properties are substantially affected by textural composition. Therefore, the objective of the study was to test the interrelationships between particle size distribution and such physical soil properties, which usually predetermine the survival/death of plants, since they significantly affect the content and availability of water and air. Textural composition and physical soil properties were studied in profiles under monocultures of selected exotic trees in Arboretum Mlyňany, Slovakia. The results showed that medium-textured dominated in topsoils, whereas heavy-textured classes were dominant in luvic and stagnic horizons. Evaluation of entire profiles had confirmed standard, expected relationships between the individual grain fractions and soil physical properties. However, differences have occurred when the correlations between texture and physical properties in individual horizons were evaluated. Considering entire soil profiles, increased sand content significantly supported drainage of rainwater and soil aeration; silt contributed to increase the total porosity and aeration as well as available water capacity; clay contributed to the decrease in the available water capacity, total, and particularly coarse porosity and aeration, and to rise water retention, as well as the values of the wilting point. The results showed silt as key fraction providing suitable hydrophysical properties for the survival and growth of trees introduced in Arboretum. In compacted luvic and stagnic horizons, silt was significantly involved in the formation of total, and particularly coarse porosity and thereby increase soil aeration, while conversely, in loose topsoils just silt fraction significantly contributed to the reduction of coarse pores and increase of fine capillary pores and therefore water retention. In loose eluvial horizons, the silt contributed to significant increases in capillary porosity and water availability, which is essential in terms of meeting the plant needs.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 6; 244-252
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nitrogen fractions and amino acid content in alfalfa and red clover immediately after cutting and after wilting in the field
    Zawartość frakcji azotowych oraz aminokwasów w zielonkach z lucerny i koniczyny czerwonej bezpośrednio po skoszeniu oraz po podsuszeniu na pokosach
    Autorzy:
    Purwin, C.
    Fijalkowska, M.
    Pysera, B.
    Lipinski, K.
    Sienkiewicz, S.
    Piwczynski, D.
    Puzio, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/15361.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    nitrogen fraction
    amino acid content
    alfalfa
    red clover
    cutting
    wilting
    field
    Opis:
    The aim of this study was to determine the composition of nitrogen fractions in alfalfa and red clover, which differ in proteolytic activity, and to evaluate the effect of wilting on changes in nitrogen fractions in alfalfa and red clover herbage. Total nitrogen was divided into protein and non-protein nitrogen, and the amino acid profile of protein was analyzed. Buffer-soluble nitrogen (BSN), including buffer-soluble protein nitrogen (BSPN) and non-protein buffer-soluble nitrogen (NPBSN), was determined. The NPBSN fraction was further subdivided into peptide nitrogen, amino acid nitrogen, neutral detergent-insoluble nitrogen (NDIN) and acid detergent-insoluble nitrogen (ADIN). Wilting in the field to 40% dry matter content (the swath was tedded once) did not reduce the total nitrogen content of alfalfa and red clover herbage, although it affected the concentration of the BSNfraction, in particular NPBSN, and free amino acid nitrogen. During alfalfa wilting, the soluble protein content decreased and the concentrations of non-protein nitrogen compounds increased, mostly due to an increase in free amino acid nitrogen. A reverse trend was observed during red clover wilting – the concentrations of non-protein nitrogen compounds decreased and soluble protein content increased. A decrease was also noted in peptide nitrogen, NDIN and ADIN. Wilting of alfalfa and red clover had no adverse effect on the amino acid profile of protein. The concentrations of essential amino acids that limit milk protein synthesis, i.e. Lys, Met, His and Arg, did not decrease. Legume wilting in the field contributes to an increase in the concentrations of soluble nitrogen in the plant material intended for ensiling.
    Celem pracy była charakterystyka składu frakcji azotowych w zielonkach z lucerny i koniczyny czerwonej, surowcach roślinnych różniących się potencjałem proteolitycznym, oraz ocena wpływu podsuszania na skład frakcji azotowych w tych zielonkach. Rozdzielono azot ogólny na azot białkowy i azot niebiałkowy oraz określono skład aminokwasowy białka. Ponadto określono związki azotowe rozpuszczalne w buforze (BSN), rozdzielono je na białkowe związki azotowe rozpuszczalne w buforze (BSPN) i niebiałkowe związki azotowe rozpuszczalne w buforze (NPBSN). We frakcji NPBSN wyodrębniono azot peptydowy oraz azot aminokwasowy, wydzielono także związki azotowe o niskiej rozpuszczalności (azot nierozpuszczalny w neutralnym detergencie -NDIN) i całkowicie nierozpuszczalne (azot nierozpuszczalny w kwaśnym detergencie-ADIN). Podsuszenie na pokosach do 40% suchej masy z zastosowaniem jednokrotnego zabiegu przetrząsania nie spowodowało ubytku azotu ogólnego w zielonkach z lucerny i koniczyny czerwonej, natomiast wpłynęło na koncentrację całej frakcji rozpuszczalnej w buforze, szczególnie jej części niebiałkowej, oraz azotu w formie wolnych aminokwasów. W czasie podsuszania zielonki z lucerny malał udział białek rozpuszczalnych, natomiast wzrastał udział związków niebiałkowych, przede wszystkim za sprawą wzrostu azotu wolnych aminokwasów. W koniczynie czerwonej w trakcie podsuszania – odwrotnie niż w lucernie – malała frakcja związków niebiałkowych, natomiast wzrastała frakcja łatwo rozpuszczalnych białek, zaobserwowano wyraźny ubytek azotu w formie peptydowej oraz frakcji trudno rozpuszczalnych i nierozpuszczalnych. Podsuszenie zielonek z lucerny i koniczyny czerwonej nie pogorszyło profilu aminokwasowego białka. Nie stwierdzono ubytku aminokwasów egzogennych limitujących syntezę białka mleka, tj: Lys, Met, His, Arg. Zabieg podsuszania zielonek z motylkowatych na pokosach wpływa na zwiększenie udziału form rozpuszczalnych azotu w surowcu przed zakiszaniem.
    Źródło:
    Journal of Elementology; 2014, 19, 3
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pine wilt disease - a threat to pine forest in Europe
    Autorzy:
    Suzuki, K
    Powiązania:
    https://bibliotekanauki.pl/articles/41424.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    plant disease
    pine wilt disease
    wilting mechanism
    disease control
    pine stand
    nematode
    Europe
    pine wood
    Bursaphelenchus xylophilus
    pine forest
    Opis:
    Pine wilt disease caused by pine wood nematodes is endemic to North America. Pine wood nematodes have already spread to East Asia, including China, Taiwan and Korea in addition to Japan. The pine wood nematode, Bursaphelenchus xylophilus, was discovered in Portuguese pine forests in 1999. If it were to become established in the pine forests in Europe, it could become one of the most serious threat to coniferous forests worldwide.
    Źródło:
    Dendrobiology; 2002, 48
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chalara fraxinea - nowo opisany gatunek grzyba na zamierających jesionach w Polsce
    Chalara fraxinea - new described fungus species on dying ash in Poland
    Autorzy:
    Kowalski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015977.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    objawy chorobowe
    grzyby
    czynniki chorobotworcze
    jesion
    Chalara fraxinea
    lesnictwo
    Fraxinus
    drzewa lesne
    fitopatologia lesna
    fraxinus excelsior
    chalara fraxinea
    wilting
    dieback
    Opis:
    The paper provides the characteristics of the fungus Chalara fraxinea which may enable its identification. The disease symptoms on ashes regularly accompanied by this fungus were specified. Possible casual relationship between Ch. fraxinea and ash dieback is discussed in the paper.
    Źródło:
    Sylwan; 2007, 151, 04; 44-48
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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