Baghdad Science Journal
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Effect of Hardening to drought tolerance on the moisture contents of sunflower plant. II moisture percentage in leaves and heads
No full text يهدف العمل الى دراسة التغيرات الحاصلة في المحتوى الرطوبي لأوراق وأقراص نباتات زهرة الشمس خلال مراحل نموها تحت ظروف التطويع لتحمل الجفاف . نفذت تجارب حقلية خلال ربيعي 2000 و2001 . أستعمل تصميم ألألواح ألمنشقة-ألمنشقة بثلاث مكررات.شملت ألالواح ألرئيسية على معاملات ألري الى 100% (ألري ألكامل) و75 و50%من ألماء ألجاهز في ألتربة،وأحتل ألصنفان يوروفلور وفلامي ألالواح ألثانوية. أشتملت ألدراسة على أربع معاملات نقع للبذور:ألمقارنة(من دون نقع)وألنقع في ألماء وألنقع في محلول ألكلتار(250 جزء من ألمليون) وألنقع في محلول ألبكس (500 جزء من ألمليون) ألتي أحتلت ألالواح تحت ألثانوية.تنقع ألبذورلمدة24 ساعة ثم تجفف هوائيا لغاية وصولها ألى أوزانها ألاصلية قبل ألنقع.حسبت كميات ألمياه لكل رية لتعويض ألاستنزاف ألرطوبي خلال موسم ألنمو بأستعمال مقياس ألرطوبة ألنيتروني. أجريت جميع ألعمليات ألزراعية حسب ألتوصيات.
أوضحت ألنتائج بأن معاملات الري لم تؤثر في النسبة المئوية للرطوبة في ألأوراق ، في حين أدى الري ألاعتيادي وألشد 600 كيلوباسكال الى زيادة النسبة المئوية للرطوبة في ألأقراص بنسبة 1.69 و2.44 % عن الشد 800 كيلوباسكال بعد 58 يوما من ألزراعة في ألموسم2001. تفوقت معاملتي الري الاعتيادي والشد 800 كيلوباسكال بنسبة 3.66 و 1.52% على معاملة الشد 600 بعد 72 يوما من الزراعة في متوسط ألموسمين .تفوق ألصنف يوروفلور على الصنف فلامي في نسبة الرطوبة في أوراق نباتاته بعد86 يوما من ألزراعة بنسبة 5.34 في ألموسم 2001 و 2.76%في متوسط ألموسمين.كما تفوق في نسبة الرطوبة في أقراص نباتاته بنسبة 2.79% في الموسم 2001. ساهمت عمليات نقع ألبذور قبل الزراعة في الماء ومحاليل الكلتار والبكس في زيادة نسبة الرطوبة في ألأوراق بنسبة 3.73 و2.65 و 4.13% عن بعد 58 بوما من الزراعة في متوسط الموسمين ، ونسبة الرطوبة في ألأقراص بنسبة 4.05 و 5.12 و 5.44% بعد 58 يوما من الزراعة في الموسم 2000 وبنسبة 2.80 و3.09 و2.86% في الموسم 2001 قياسا بمعاملة من دون نقع. يستنتج من هذه ألدراسة أهمية نقع ألبذور قبل ألزراعة في ألماء أومحاليل منظمات ألنمو لتحسين العلاقات المائية لأوراق وأقراص النباتات وزيادة نسبة التزهير وعقد البذور وامتلاءها عند تعرضها للجفاف.The objective of this work was to study the changes in the moisture content of the leaves and heads of sunflower plant during growth stages under hardening conditions to drought tolerance . Field experiment was carried out during the spring season of 2000 and 2001. Asplit-split plots design was used with three replications. The main plots included irrigation treatments:irrigation to 100%(full irrigation), 75and50%of available water.The sub plots were the cultivars Euroflor and Flame.The sub-sub plots represented four seed soaking treatments :Control (unsoaked), soaking in water ,Paclobutrazol solution(250ppm),and Pix solution (500ppm). The soaking continued for 24 hours then seeds were dried at room temperature until they regained their original weight. Amount of water for each irrigation were calculated to satisfy water depletion in soil using a neutron meter.
Results indicated that moisture content of the leaves was not affected by irrigation treatments .While full irrigation and stress 600 Kp increased moisture content of heads by 1.69 and 2.44%, respectively than stress 800Kp after 58 days from planting in the season 2001.Full irrigation was superior over stress 600 and 800 Kp by 3.66and 1.52% after 72 days from planting as a mean of seasons. Euroflor was superior over Flame in the moisture content of its leaves after86 days from planting by 5.34% in the season of 2001 and by 2.76% as a mean of seasons , and superior in moisture content of its heads by 2.79% in the season of 2001. Soaking in water , paclobutrazol and pix solutions increased moisture content of sunflower leaves by 3.73,2.65 and 4.13% after 58 days from planting as a mean of seasons, and increased moisture content of sunflower heads by 4.05, 5.12 and 5.44% after 58 days from planting in the season 2000 , and by 2.80, 3.09 and 2.86% in the seasons of 2001 compared with unsoaked treatment. In conclusion , soaking the seeds presowing in water or plant growth regulators could improve water relations of the leaves and heads of sunflower plants , which lead to increase flowering, setting and filling of seeds during drought periods
Ecological Observations of the Effects of Magnetized Water on the Fresh Water Snail Physa acuta (Draparnoud, 1805)
No full textتعتبر قواقع المياه العذبة النوع Physa acuta مهمة من الناحية البيئية في المياه العذبة العراقية لكونه يشكل غذاءا مهما ضمن مكونات السلسلة الغذائية الطبيعية .
تستخدم المياه الممغنطة في العديد من المجالات البحثية والزراعية والصناعية ولإغراض مختلفة.ولقد أثبتت البحوث العلمية نتائج مهمة لتعريض الكائنات المختلفة للمجال المغناطيسي وفي البحث الحالي تم تعريض قوقع Physa acuta إلى شدة مغناطيسية مقدارها 1000غاوس في المختبر وتم مقارنة التأثير مع مجموعة السيطرة (غير المعاملة) وتم متابعة التغيير في النمو (الطول والوزن) لكلا المجموعتين لأخر يوم من عمر الحيوان. كما تم قياس العوامل البيئية المؤثرة كدرجة الحرارة والأس الهيدروجيني والتوصيلية الكهربائية والمواد الصلبة الكلية الذائبة بالماء لكلا المجموعتين.
أظهرت الحيوانات المعرضة للشدة 1000غاوس استجابة معنوية مقارنة بحيوانات السيطرة حيث بلغت أطوال صدفة الحيوانات الكلية بالمليمتر للسيطرة والمعرضة للشدة على التوالي(( 10-1.9 ( 12.43-1.83) وأطوال فتحة الصدفة بالمليمتر (6.75-1.3 )( 7-1.3) وعرض فتحة الصدفة بالمليمتر(3.75-0.88) ( 6.83-0.83 ) وارتفاع الصدفة بالمليمتر(5.75-0.95) ( 6-1 ) وبلغت معدلات وزن الجسم بالغرام لحيوانات السيطرة والمعرضة للشدة على التوالي(0.1078 )(0.1631) ومن المحتمل أن تكون النتائج المعنوية عند التعريض للشدة المغناطيسية التي تم الحصول عليها في هذا البحث مرتبطة ببعض الجوانب الحياتية الأخرى كالفعاليات الخلوية والتغيرات الجزيئية .The freshwater Gastropod Physa acuta is an important species in fauna of aquatic habitats of Iraq. The species is considered a component of the food chain.
The magnetized water is used in various fields; scientific, agricultural and industrial for different purposes. Exposure assays to magnetized water have so for revealed striking results. In the present investigation the species was exposed to 1000G magnetized water under laboratory conditions. The resulting effects were compared with those obtained from a control experiment where the individual kept in normal untreated water. Observations included growth as indicated by length, width and depth of snail shells as well as weight for both groups up to last day of snails life.
Also ecological factors such as water temperature, PH, electrical conductivity, total dissolved solids were measured throughout the treatment. Animals exposed to 1000G magnetized water have shown significant response to control animals those not exposed to magnetized water. The total length of animals in millimeters for control and those exposed to intensity respectively (1.9-10)(1.83-12.43) and lengths of shell pore(1.3-7)(1.3-6.75)and wide shell pore (0.88-3.75)(0.83-6.85) and height shell(1-6)(0.95-5.75). The averages of body weight in gram for control animals and those exposed to intensity were respectively (0.1078)(0.1631).The results obtained in this study may be related to some important biological activities such as molecular and cellular during the growth period of the snails
Structural characterization of gamma irradiated ZnS thin films
Get PDF باستخدام حيود الاشعة السينية تمت دراسة تأثير أشعة كاما في الخواص التركيبية لأغشية كبريتيد الخارصين الرقيقة المرسبة على قواعد من الزجاج بتقنية التبخير الوميضي الى ظهورالقمتين
(111),(220) في بطاقة الاشعة السينية دليل على التركيب التكعيبي للاغشية. ثابت الشبيكة ،الحجم الحبيبي ، معدل الاجهاد الداخلي ، المطاوعة المجهرية ، كثافة الانخلاعات ، وكانت المستويات البلورية المتسيدة قد حسبت وربطت بالتشعيع باشعة كاما.The effects of gamma irradiation on the structure of ZnS films , which preparing by flash evaporation method, are studied using XRD. Two peaks of (111), (220) orientations are appeared in X ray chart indicating the cubic phase of the films .The lattice parameter, grain size, average internal stress, microstrain, dislocation density and degree of preferred orientation in the film are calculated and correlated with gamma irradiation
Identification and Quantitative Estimation of Lutein in Iraqi Spinacia oleraceaFamily Chenopodiaceae by Using Chromatographic Methods
Get PDFLutein is an antioxidant carotenoid present in the highest quantities in dark, leafy green vegetables such as spinach. In this study, and for the first time we try to separate and calculate the quantity of lutein in Iraqi spinach to know the dietary requirements from this active drug to avoid age macula degeneration caused by lutein depletion.
Extraction and fractionation of lutein from Iraqi spinach leaves were carried out by soxhlet apparatus using petroleum ether: acetone (1:1) as a solvent system, then lutein was isolated by preparative thin layer chromatography and identified by thin layer chromatography using two different solvents system: (petroleum ether: diethyl ether:acetic acid) and (petroleum ether: acetonitrile: methanol) compared with standard , melting point, mixed melting point and high performance liquid chromatography (HPLC).50gm of Iraqi spinach gives about 32mg of lutein
CFIA-Turbidimetric and Photometric Determination of Vitamin B9 (Folic acid) Using LEDs as a Source of Irradiation and Two Solar Cells as an Energy Transducer
Get PDFA specific, sensitive and simple method was used for the determination of: vitamin B9 (Folic acid) in pure and pharmaceutical formulations using continuous flow injection analysis. The method is based on formation of ion pair compound between folic acid and ammonium molybdate in an aqueous medium to obtain a gray precipitate complex, using homemade; Ayah-6SX1-ST-2D solar cell CFI Analyzer. Optimum parameters was studied to increase the sensitivity for developed method. The linear range for the calibration graph was 0.01-0.6 mMol.L-1 of vitamin B9 and LOD was 131.994 ng/sample with correlation coefficient ( r ) of 0.9810, RSD% was lower than 0.1%, (n=9) for the determination of vitamin B9 at concentration (0.07and 0.5) mMol.L-1 respectively. The developed method was applied successfully for the determination of vitamin B9 in pharmaceutical tablets. A comparison was made between two methods: developed method and the classical UV spectrophotometric method at ?max=255 nm, by using the standard addition method via the use of paired t-test. It showed that there was no significant difference between the developed method and the classical method for determination vitamin B9 at 95% confidence level
Isolation of some active materials and aqueous, alcoholic and oil seed extracts of the plant (Curcuma longa (and study Antibacterial and anticancer activity
No full textThis study included isolation of some active materials from Curcuma longa such as tannins, saponins and volatile oils with percentage of 59%, 31%, and 9% respectively. Also the study included the determination of minerals in Curcuma longa such as " Na, Ca and K" using Flame photometer. The concentrations of these minerals were (14 ppm),(10 ppm) and )76 ppm) respectively.
The anti-bacterial activity study was performed for the active materials isolated from Curcuma longa against two genus of pathogenic bacteria, Escherichia Coli and Staphylococcus aurous by using agar-well diffusion method. It appeared from this study that all of the extraction have inhibitory effect on bacteria was used. The inhibition zone diameter varies with the type of active compound, its concentration and the types of bacteria.
The results obtained were analyzed statistically way (one way ANOVA) she stated results that alcoholic extract warm has had the greatest influence on the ratio of the number of cells developing and the effect was significantly (
Determination The Effect of ZnO on Iraqi Bentonite Surface Properties
Get PDFBentonite is widely used in industrial applications. The present study reports the effect of adding different weights of ZnO to the Iraqi bentonite, on surface area, pore volume and real density. These surface properties were evaluated for pure and modified bentonite. The modification was made by adding different ZnO weights such as; ( 0.5%, 1%, 5%, 10% ). The effect of heat exposing for all modified clay samples at 500 ?C have been also evaluated. The results show that the addition of 0.5% ZnO leads to increase the surface area percentage about 36%, increase pore volume percentage about 5.48% and increase the real density percentage about 27.116%. When the samples exposed to 500 ?C, their surface area and pore volumes have been decreased and the real density increased in compared with non-heat exposed samples
The construction of Complete (kn,n)-arcs in The Projective Plane PG(2,5) by Geometric Method, with the Related Blocking Sets and Projective Codes
Get PDFA (k,n)-arc is a set of k points of PG(2,q) for some n, but not n + 1 of them, are collinear.
A (k,n)-arc is complete if it is not contained in a (k + 1,n)-arc.
In this paper we construct complete (kn,n)-arcs in PG(2,5), n = 2,3,4,5, by geometric method, with the related blocking sets and projective codes
Modification Of Rheological Properties Of Asphalt Effect Of Addition Of Asphaltenes And Oxidized Asphaltenes On The Compatibility Of Asphalt- Sulfur Blends
No full textThis study is a complementary one to an extended series of research work that aims to produce a thermodynamiclly stable asphalt –sulfur blend.
Asphalt was physically modified wiht different percentages of asphaltenes , oxidized asphaltenes and then mixed with sulfur as an attempt to obtaine a stable compatible asphalt-sulfur blend.
The homogeneneity of asphalt-asphaltenes[oxidized asphaltenes]-sulfur blends were studied microscopically and the results are prsented as photomicrographs.
Generally more stable and compatible asphalt-sulfur blends were obtained by this treatment
Determination Oxidant - Antioxidant Enzyme and some Trace Elements in Breast Cancer in Baghdad City
No full textlevel of effectiveness of Glutathione - S - Transferees (GST), Glutathione peroxides (GPX),Malondialdehyde (MDA) the product of lipid peroxidation and some trace elements ( zinc,seleinum,iron ,copper ) had been measured in sera of (50) women with breast disease.which had been divided to :
Control group (25),The first group (A) benign breast tumors (25),the second group (B) breast cancer (25). The results showed a clear moral high level of Glutathione - S - Transferees (GST), Glutathione peroxidase (GPX) , and Malondialdehyde (MDA) level in breast cancer group while a slight increase were observed in the levels of these enzymes and(MDA) in benign breast group. A significant reduction was evident in the levels of selenium and zinc when compared with the control group while there were an increase in levels of sera copper , iron in the breast cancer group.
As in (tissue) group of breast cancer found a rise in the level of selenium, zinc, copper, iron, compared with (serum) of breast cancer