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Register a new userHarmonia axyridis & coccinella septempunctata ( Coleoptera : Coccin ellidae )
تأثير العائل النباتي ونوع الفريسة على بعض الصفات الشكلية والخصائص الحياتية لمفترسي المن
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Damascus University رسالة ماجستير
Publication date
2015
fields
Agricultural Engineering
and research's language is
العربية
Created by
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نفذ هذا البحث في مركز بحوث ودراسات المكافحة الحيوية في كلية الزراعة بجامعة دمشق خلال الفترة 2012-2015 م وهدف إلى دراسة الكفاءة الافتراسية وزمن تطور وبقاء اليرقات على قيد الحياة والخصوبة والكفاءة الافتراسية عند بالغات المفترسين Coccinella septempunctata و Harmonia axyridis وذلك عند تغذيتهما على نوعي فرائس هما منّ الفول Aphis fabae المربّى على نباتي الفول والفاصولياء ومنّ الملفوف Brevicoryn brassicae المربّى على نباتي الملفوف والكرنب وذلك تحت الظروف المختبرية .
This research was carried out in the " Research and study center of Biological control "- faculty of agriculture, university of Damascus , during 2012-2015 . The aim was to study the predation, developmental time ,
References used
خليل نذير ( 2006) مساهمة في درساة تصنيفية وبيئية لفصيلة الدعسوقيات في جنوب سورية درساة دكتوراة دامعة دمشق
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This study was conducted on predator Coccinella septempunctata at laboratory
conditions , under average of temperature 20± 2Cº.
Results confirmed: Average of life cycle time was :27.3±4.1 days ( egg development
time 6.5±0.5 , larvae 13.2±0.5 , pup
a 7.5±0.5 days).Also the study of predation efficiency
showed that the average number of aphids consumed by each of the four instars larvae
were (57.9±10.6 , 63.7±9.4 , 66.5±8.3 , and 348±43.4) respectively. Therefore the fourth
larva instar seemed more predation efficiency, as compared to other three instars ,it
consumed double that the three instars consumed, but adult consumed 121±4.5 number
of aphids in one day.
The ladybird predatos (Coccinella septempunctata L.) was bred by the cross
mating method, which is followed in all international bio – control centers, to
be transformed from the natural local strain into laborators one, which enable
continous pro
duction and collection of predator groups without affecting the
numerical measurements of the most relevant morphological parameters, such
as insect's body length, and the biological traits, such as fertility, predators
efficacy multiplication, longivity, metamorphesis duration, and sex ratio.
The aim of this study was to assess and analysis the morphology of the nose and
examine their relationships with the facial growth types according to Jarabak and their
differences between the sexes This study is performed with using radiographic
c
ephalometric for 31 female and 55 male aged between 18-25 years and by using analysis
of variance Kruskall-Wallis one-way ANOVA and Mann-Whitney U-tests of statistical
test. The results showed a statistically significant relationship between each of the angle
Cranial base with the nasal bone (Nasal bone / SN), and level of the nose with cranial base
(NSL / NL), and the facial pattern for all the simple. It was noted the existence of a
significant statistical relationship between the length of the nasal cartilage (Cart-nose), and
the total length of the nose , and the angle between the nasal bone with cranial base and
facial pattern .And the results showed at females the presence statistically significant
relationship between each of the( Nasal bone / SN), and (NSL / NL), and facial pattern.
This study had been carried out to investigate the effect of inbreeding on
some morphological traits in purebred Syrian Arabian foals. Data of 10 body
measurements for 108 horses included 60 colts and 48 fillies were collected at
Bassel Al-Assad s
tud for purebred Arabian horses. It consisted of wither
height, croup height, complete body length, back line length, chest depth, chest
width, chest girth, neck girth, croup width, and cannon bone length for front
legs. Pedigree data were extracted from stud book of purebred Syrian Arabian
horses with four ancestor generations and Inbreeding coefficients were
estimated. General linear model (GLM) was used to study the effect of
inbreeding on studied traits. The results cleared that growth rate for biometric
traits in Syrian Arabian foals similar to other Arabian foals in different
regions. On other hand, it was different from growth rate of foals of other
breeds.
تأثير التلقيح البكتيري وموعد الزراعة في الصفات الإنتاجية والخصائص النوعية للفول Vicia faba L الأخضر والحبي
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