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.