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This study was conducted to determine the effect of lichen Evernia prunastri extracts (acetone, ethanol, and chloroform) against the two species of plant pathogenic fungi were Fusarium oxysporum, F.solani. All extracts showed has inhibition influence evident in the growth of fungal and germination of spores of two compared to the control.
A Study was carried out to evaluate the ability of the methanolic, hydro and oily extractions of anise seeds (Pimpinella anisum L.) to inhibit the growth of the pathogenic fungi Fusarium oxysporum and Aspergillus niger. The results showed a good in hibition ability of the alcoholic and hydro extractions on the growth of the studied fungi. The inhibition ability differed due to the used concentrations. When the methanolic extraction was used by concentrations (2, 4, and 6) mlg/ ml at the seventh day, the inhibition ability was (42.5, 50.6 and 64.4)% of the fungus F. oxysporum, respectively. And was (23.6, 42.7 and 55.1)% of the fungus A. niger, respectively. Whereas when the hydro extraction was used by the same concentrations, the inhibition ability was (59.2, 65.3 and 70)% respectively for the fungus F. oxysporum, and (46.1, 58 and 61)% for the fungus A. niger, respectively. The oily extraction showed high inhibition ability, where the inhibition rate was 100% when the extraction was used by the two concentrations 50 and 75 μl for both two studied fungi.
This study was carried out to evaluate the effect of isolates of Rhizobium leguminosarum in reducing infection of tomato with Fusarium oxysporum f.sp.lycopersici,the causal agent of tomato wilt. The results demonstrated significant reduced in seve rity disease of plants were inoculated with Rhizobium leguminosarum, the rate reduced of disease severity was 69.21% and in length of browning was 35.14%. Rhizobium leguminosarum increased of plant height with 21.01%, fresh weight of shoot and root increased with 35.32% and 43.35% respectively,while increased the number of fruit with 47.39% and its weight with 32.48%
sixteen isolates of Fusarium oxysporum f. sp. ciceris (Foc ), representing six provinces (Al Hasakah, Aleppo, Idlib, Hamah, Homs and Dara) of Syria were analyzed for pathogenic variability on a set of 10 differential cultivars of chickpea.
The effect mycorhizal fungi on tomato wilt disease caused by Fusarium oxysporum was studied. The results showed that % of disease incidence reduced in treatment whit mycorrhizal fungi . % of disease incidence reached to 33% when plants infected wit h mycorrhizae and Fusarium wilt compared to plants infected with Fusarium wilt just where% of disease incidence reached to 70% .The results showed a sighificant increased in plant height ,leaf number , fresh and dry matter of shoot and root in treated plants with mycorrhiza and Fusarium wilt compared whit treated plants with Fusarium wilt.The increase in plant height reached 24.13% ,16.93% in leaf number,36.13% in wet weight of shoot ,48.14 in wet weight of root,30.37% in dry weight of shoot and 29.18% in dry weight of root in treated plants with mycorrhiza and Fusarium wilt.
The experiment was carried out at the research stations of Salo in Deir- Azzor agricultural research center and Tel Sandal in Idlib agricultural research center. Land plots infected previously with sesame wilt disease, Macrophomina phaseolina (Tas si) Goid, and Fusarium oxysporum Schlecht were cultivated for two growing seasons (2007 and 2008) with medicinal species such as, Cumin (Cuminum-sativum), Black seed (Nigella sativa L.) and Fenugreek (Trigonella foeniculum L.) and another infected plot was left blank as a control plot. Zuri, a local sesame variety, was cultivated in all plots for two growing seasons (2008 and 2009). Results showed that the control plots had the highest percentage of infected sesame plants compared to the lowest percentage found in those plots that had been cultivatd previously with Black seed, Cumin, and Fenugreek. Plots cultivated previously with Black seed gave the highest sesame yield and followed by those plots of Cumin. The The average percentage of germination of sesame, as a phenological growth indicator, was increased in those plots planted before with Cumin and the average number of capsules per plant was increased at both locations by 36.75 capsules after Black seed in comparison with the control.
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