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Register a new userدراسة دور بعض العوامل الزراعية في مكافحة مرض العفن الفحمي المتسبب عن الفطر Macrophomina phaseolina (Tassi) Goidanish في السمسم
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جامعة الفرات رسالة ماجستير
Publication date
2010
fields
Agricultural Engineering
and research's language is
العربية
Created by
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دراسة دور بعض العوامل الزراعية في مكافحة مرض العفن الفحمي المتسبب عن الفطر Macrophomina phaseolina (Tassi) Goidanish في السمسم
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References used
الخشن , علي علي , أحمد أنور عبد الباري 1980 , انتاج المحاصيل الجزء الثاني ( المعاملات) دار المعارف جامعة الاسكندرية , كلية الزراعة 268 صفحة
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To know the effect of some fungicides on peacock eye disease has beentested five
fungicides from different chemical groups, using concentrations advisable to field
application,on the 45 year old olive trees in the Baksa village Lattakia . The resul
ts
showed an increase in incidence of the control of 22.4 to 45.5 % after 45 days, versus low
incidence rates in the fungicides tested treatments . The best two fungicides were
thiophanate –methyl with infection decreasing from 19.2 to 10.3% and chlorothalonil from
24.3% to 16.5% . The severity also decreased in the treatment of the fungicide thiophanate
–methyl from 9.7 to 4.1 % and chlorothalonil from 13.7 to 8.9 % while the severity of the
infection of the control increased from 10.5 to 25.6 % .In order to efficiency the fungicide
thiophanate – methyl was more effective reducing the infection severity compared with the
control with 82.8 %, followed by chlorothalonil , kresoxsim methyl , and mancozeb with
73.3 , 72.0 , 71.9% respectively whereas the fungicide copper oxychloride was the least
effective with 68.1%.
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.
أثر بعض العوامل الزراعية في مكافحة مرض عفن الجذور والتاج الرايزوكتوني في الشوندر السكري تحت ظروف محافظة دير الزور
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.
To determine the susceptibility of some olive varieties to the
disease of eye peacock, We studied the development of eye peacock
disease on 3 varieties (Khadairy - Zorzalina - Frontoio. The
percentage of infected leaves and the severity of infection were
estimated during spring and autumn months, the maximum period
of the spread of the disease.
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