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Wyświetlanie 1-3 z 3
Tytuł:
Effect of plant Communities and Ecological Parameters on Soil Organic Carbon Stocks in the Mamora Forest, Morocco
Autorzy:
Boujraf, Amal
Dallahi, Youssef
Dahmani, Jamila
Orlando, Collins Ashianga
Douira, Allal
Powiązania:
https://bibliotekanauki.pl/articles/24201779.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
SOC stock
soil organic carbon
carbon sequestration
plant community
ecological parameter
Mamora forest
Morocco
Opis:
Several studies on the assessment of soil organic carbon (SOC) stocks have been carried out at the global level. However, reliable information on SOC stocks is not readily available at the regional level. In addition, very few studies have assessed the factors responsible for the variation of SOC stocks, in particular the effect of plant communities. For this purpose, the main objective was to analyze the effects of three plant communities and ecological parameters on the SOC stock in the Mamora forest. Specifically, the authors looked to examine the relationships between SOC stock and plant communities and to define the main parameters that directly influence SOC stock. Ten soil profiles with three replications were sampled at each plant community, from which SOC stock was determined. To assess the effect of plant communities on SOC stocks, phytosociological surveys were carried out according to the phytosociological stigma method developed by Braun-Blanquet. The results show that the SOC stocks in cork oak soils are characterized by high variability, with values ranging from 55 t•ha-1 to 95 t•ha-1. Indeed, the findings of this study showed that the SOC stocks fluctuated significantly with plant communities. In addition, SOC stocks were also affected by the interactions between plant communities, the amount of litter and the density of the cork oak stand. These outcomes of this study highlight the critical need to incorporate community-specific carbon values into future carbon sequestration modeling.
Źródło:
Journal of Ecological Engineering; 2023, 24, 5; 128--136
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First report of bipolaris oryzae on Typha latifolia and the pathogenicity of its isolates on different rice varieties
Autorzy:
Berbrer, Fadoua
Lamrani, Nadia
Imrani, Nawal
Msairi, Soukaina
Mouden, Najoua
Benkirane, Rachid
Ouazzani Touhami, Amina
Douira, Allal
Powiązania:
https://bibliotekanauki.pl/articles/11543479.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Morocco
weeds
phytopathology
diseases
Opis:
Rice (Oryza sativa L.) is the staple food of more than half of the world population. However, its production is facing several biotic constraints. Among serious biotic factors that harm rice crops, the Helminthosporium disease has severe adverse impacts on rice yield, generating heavy losses of up to 90%. Four Bipolaris oryzae isolates were recovered for the first time from leaf lesions in the weed species Typha latifolia, and then subjected to pathogenicity tests on several rice varieties. The results indicated that Moroccan isolates of B. oryzae altered the leaf surface of five rice varieties tested. Among four isolates, Hor4 was the most pathogenic, showing high aggressiveness on the Cererrer and Elio varieties, with disease severity of 92.59%, followed by the Hor1, Hor2, and Hor3 isolates. The Arpa variety showed higher resistance to the Hor1 isolate, with a severity index of 35.18%. Through mycelial cutting or conidial suspension, B. oryzae isolated from T. latifolia was able to produce conidia on the leaves of this weed species.
Źródło:
Acta Mycologica; 2022, 57; 573
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
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
    Wyświetlanie 1-3 z 3

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