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مجلة العلوم الزراعية العراقية

ISSN: ISSN:00750530 / EISSN:24100862
الجامعة: جامعة بغداد
الكلية: الزراعة
اللغة: Arabic and English

This journal is Open Access

حول المجلة

تأسست مجلة العلوم الزراعية العراقية في كلية الزراعة جامعة بغداد عام 1966. كانت المجلة تصدر بعددين في العام فقط. بدأت المجلة عام 2000 باصدار ستة اعداد في السنة لكل مجلد, وهي الان في عام 2016 بالمجلد (47). تشمل ابحاث المجلة كافة العلوم الزراعية المرتبطة بالعلوم النباتية والحيوانية فضلاً عن المكننة الزراعية والاقتصاد الزراعي والارشاد الزراعي والعلوم الداعمة للعلوم الزراعية مثل الكيمياء والفيزياء لاسيما المرتبطة بالضوء والالحرارة والرياح وغيرها. يتضمن المجلد الواحد حالياً اكثر من 75 بحثأ حيث يتضمن العدد الواحد بين 20-25 بحثاً بحسب عدد الابحاث المقبولة في كل عدد

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معلومات الاتصال

tijasub@yahoo.com
tel :
009647804541817
009647512748875
address:
college of Agric. / Univ. of Baghdad
Al Jadreah, Baghdad, Iraq

جدول المحتويات السنة: 2009 المجلد: 40 العدد: 2

Article
CROP AND SOIL MANAGEMENT AND BREEDING FOR DROUGHT TOLERANCE
إدارة المحصول والتربة والتربية لتحمل الجفاف

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الخلاصة

Water deficiency is a severe limiting factor in developing several countries and impacts on both economics and food production of these countries. Approximately four tenths of worlds agricultural land is under arid or semi-arid regions with transient droughts causing death of livestock, famine and social dislocation. Water plays a crucial role in the survival of plants by fulfilling the roles of solvent, transport medium and evaporative coolant as well as providing the energy necessary to drive photosynthesis, the natural plant process which synthesizes organic food. Under drought conditions; which can be defined as: the absence of adequate moisture necessary for plant to grow normally and complete its life cycle, the loss of water in the plant protoplasm may result in the concentration of ions in the protoplasm to toxic levels resulting in possible protein denaturation and membrane fusion and negatively impacting plant metabolism. Metabolic changes in response to water stress include reduction in photosynthetic activity, accumulation of organic acids such as malate, citrate and lactate…etc. and overall reduction in protein synthesis. For these entire reasons, drought can cause significant yield reduction. Several agricultural regions are reliant on irrigation to maintain yields. Crop plants which can make the most efficient use of water and maintain acceptable yields will give an advantage in those regions. Research on drought tolerance and mechanisms for improving drought tolerance are underway internationally trying to provide solutions to the problem of water deficiency, which is considered the most complicated problem facing the whole world in the few coming years. That’s will save water used in agriculture and to ensure the development of sustainable agriculture. This includes studies into elucidating the mechanism of drought tolerance in different plants genera and species which have different genetic makeup and hence different abilities for drought tolerance. There are several mechanisms of stress and drought tolerance in plants, so additional studies still required to elucidate the mechanisms by which plants can survive under environments of water deficit. Although genetic basis even on the molecular level for plant tolerance under water stress remains unclear, crop and soil management, breeding programs and molecular biology tools can assist in the screening and identification of new drought tolerant genera and species plants. Also it's necessary to focus on adopting many new crop and soil service processes, which will have a major role in efficient water use, which in its turn leads to increase yield and productivity, and the later should based upon scientific management decisions.

الكلمات الدلالية


Article
IMPROVEMENT OF SOME MAIZE TRAITS BY HONEYCOMB SELECTION
تحسين بعض صفات الذرة الصفراء بالانتخاب بخلية النحل

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الخلاصة

To investigate the effect of honeycomb selection in improving crop grain yield , field trials were undertaken for five seasons on the farm of Dept. of Field Crops, Coll. of Agric./Univ. of Baghdad during 2005-2007. Buhuth 106, Oh40, and pop corn were used. Seeds were planted in the first three seasons using honeycomb design of 1.3 m between furrows and 1.5 m between plants.The parameter used for selection was, ears/plant. Desired plants were selected, tagged and selfed. Seeds then taken, mixed, planted and hand cross-pollinated (panmixia). Growth rate of selected Oh40 maize was increased from 3.02 to 3.89 g/plant/d, plant dry matter from 328 to 421g, ear/plant for 1.15 to 1.5, kernel/ear from 530 to 611, at 60.000plant/ha and grain yield from 8.04 to 13.41 t/ha at 80,000 plant/ha. This implies that system capacity constant (SCC) was significantly improved. Grain yield of selected Buhuth 106 and popcorn were increased from 7.44 to 12.2, and 5.1 to 7.5 t/ha, respectively. Values of heritability for trait used was 37.5%, 42.3%, 31.4% for numbers of ear/plant for Buhuth 106, Oh40, and popcorn, respectively, after 2 cycles of selection. It was clear that additive gene action has improved SCC of selected plants. It was recommended to use honeycomb method to develop inbreds of high vigour better than those developed by conventional selection. Testing these new inbreds for GCA and SCA will lead to develop new elite hybrids.

الكلمات الدلالية


Article
VARIATIONS OF BREADWHEAT TRAITS AND SELECTION ACTION AS INFLUENCED BY HONYCOMB SPACINGS
تغايرات صفات حنطة الخبز وفعل الانتخاب بخلية النحل

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الخلاصة

A field experiment was conducted in 2006 and 2007 to identify the best spacing of the honeycomb selection to show cultivars variation. The experiment included the bread wheat cultivars IPA99 and Abu-Ghraib3 and distances between plants (d) (30-90 cm) with 20 cm increment, and between row according to the equation d√3/2 . The experiment was conducted by using RCBD with four replicates. Selection parameters included: spike/plant, grain/plant and plant grain yield .The results of the first year showed superiority of the 78×90 cm distance in spikes/plant, spike length and spikelets/spike. The highest variation was found among cv. IPA99 (31±5.2, 12.8 ±1.02 cm and 22.7±1.39), respectively. These results reflected in an increase in grain /spike (76.5g ±7.0) which affected positively grain/plant. Yields of selected plants of the two cultivars were increased in the same treatment to reach 61.5 ± 7.6 and 50.7 ± 7.9 ,respectively. Seeds of some superior plants were planted in the following year according to a factorial experiment included eight combinations of cultivar distances× cultivars for evaluation and compared with original plants at seeding rates 120 and 150 kg/ha . Selection resulted in superiority of selected plants at 78×90 cm distance in yield components. Spikes/m2 were increased from 270.5 to 455.6, and grain/spike from 47.3 to 64.9 . The selected progeny gave grain yield (483.1 and 453.0 g/m2) higher than original plants (304.0 and 295.9 g/m2) for IPA99 and Abu-Ghraib3, respectively. Selection also led to homogeneity of population . Selected plant yields were increased from 302.5 g/m2 of the original plants to 523.0 g/m2 as a mean of both cvs. C.V% , S.D and SE were decreased in the selected populations . The progeny of IPA99 CV. plants which selected from 78×90cm was the most stable and highest in genetic resultant, predication criterion and combined criterion. Honeycomb selection has shown higher variation among population of the two cultivars as a result of the additive gene action that affect some characters related to yield. It was recommended to use honeycomb selection spacing (78×90 cm) for breadwheat grain yield improvement and the selection could be repeated for more generations if variations are still exist . However, higher seeding rates along with higher fertilizers rates were also recommended to test the productivity of the selected lines.

الكلمات الدلالية


Article
WHEAT CULTIVARS PERFORMANCE AS EFFECTED BY ROW SPACING
سلوك اصناف من حنطة الخبزTriticum aestivum L.) ) بتأثير المسافات بين خطوط الزراعة

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الخلاصة

A field trial was conducted at the Experimental farm,College of Agriculture. Abu Ghraib, Baghdad , Iraq in two winter seasons ( 2001-2002 and 2003-2004) .The objectives were to investigate the effect of row spacing on the performance of some different bread wheat varieties on some growth characters and yield . Row spacing (15, 18 and 21) cm were assigned in the main plots and the varieties (Tahadi, Ipa99 , Ipa95 and Abu-ghraib-3 ) in sub plots . The results showed that significant effect from the 15 cm between rows, in flag leaf area in the first season ( 52.85 cm2) , number of spike / m2 in both season (406.25 and 474.83 ) respectively , biological yield 18.20 t/ha and in harvest index 0.32 in the second season. Abu-ghraib -3 cu . gave higher means in plant height and number of grain / spike in both season ( 95 and 97 cm) and (51 and 52) respectively, but Tahadi was superior in flag leaf area and it's chlorophyll concentration in both seasons (54.37 and 55.74 cm2 ) and (49and 50 mg/cm2 ) respectively and gave higher weight 1000 grains a nd increased grain yield in secon d season by 12.62%, this increase had getten from high leaf area and it's concentration of chlorophyll because that increas photothensis prodection.A significant interaction between two studied factors in flag leaf area and spikes/m2 and then with grain yield .Asignificant positive correlation was found between grain yield and more of studied characters

الكلمات الدلالية


Article
FIRST RECORD OF CHARCOAL ROT MACROPHOMINA PHASEOLINA ON MELON
التسجيل الأول لمرض التعفن الفحمي(الماكروفومينا) على البطيخ

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الخلاصة

Identification of Macrophomina phaseolina causes charcoal rot disease on cantaloupe .This recording is the first on the melon crop in Iraq. Pathogencity was tested on stems of melon plants. The symptoms developed in four days after inoculation which began with the appearance of brunette water lesion or brown in the areas of inoculation at a level of Soil surface soon expanded and extended to the higher stems to form canker with secretions gum in infection areas . Then the produced small sclerotia inside and outside the infected stems tissue while not showing any symptoms of the control plants .

الكلمات الدلالية


Article
CTIVITY OF UREA, FYLAX, AND POWDER OF SOME MEDICAL PLANT TO INHIBIT GROWTH. OF TWO SPP. OF ASPERGILLUS IN ARTIFICIAL MEDIA.
فاعلية اليوريا والفايلكس ومساحيق بعض النباتات الطبية في تثبيط نمو نوعين من الفطر اسبرجلس في الأوساط الزرعية.

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الخلاصة

The experiment was carried in the laboratory of pestcides and mycotoxin. In Dept. Plant Protection. College of Agriculture, University of Baghdad during 2006. The aim of the study was to test the effect of Fylax and Urea and powder of Cinnamon bark and powder of the peels and leaves of sour orange for inhibition Aspergillus ochraceus and detoxification of Ochratoxin A.and to powder of Cinnamon bark and powder the peels and leaves of sour orange in the inhibition of growth Aspergillus flavus and preven of production of Aflatoxin B1 in media. Results of the isolation and idenitification showed that brofler chicks were accompanied with several fungi Aspergillus spp,Penicillium spp, Fusariums, ssp, Rhizopus spp, Mucor spp., Cladosporium spp. In percentage reached 37%, 34%,20%,7%, 1% and 1% respectively,The most dominanate fungus was A. ochraceus which reached 8%.Thin Layer chromatography (TLC) showed that about 35% of A. ochraceus isolates produced Ochratoxin A on isolated from brofler chicks, and some grain. The number of isolates produced this toxin were (7) from (20) isolates. The results revealed that the addition of Urea or Fylax to PDA (Potato Dextrose Agar) had caused 100% inhibition the growth of fungus growth and sporolation when concentration of 5%, 0.2% was used. Cinnamon bark powder at concentration of 5% has caused inhibition around 95% to both A. ochraceus and A. flavus. However , the peels and leaves powder of sour orange at 5% concentration have caused 49.5% and 45.6% inhibition to both A. ochraceus and A. flavus respectively

الكلمات الدلالية


Article
CROSS –RESISTANCE TO AZAMETHIPHOS AND PERMETHRIN IN STRAINS OF HOUSEFLY (MUSCA DOMESTICA L.) AND ACTIVITY OF PIPERONYL BUTOXIDE TO INHIBIT RESISTANCE 1.
المقاومة المشتركة لمبيدي azamethiphos و permethrin في سلالة للذباب المنزلي و فاعلية المنشط Piperonyl Butoxide في تثبيط المقاومة

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الخلاصة

The purpose of this experiment was to detect the activity of some insecticides against strains of housefly resistant to azamethiphos and permethrin.The individuals of housefly were exposed to selective pressure under LD50 of used pesticides.The topical application was used for each pesticide at 1 microliter /female. Results indicated that there was no cross resistance for azamethiphos and permethrin with malathion ,cypermethrin , abamectin and thiamethoxam according to values of LD50’s and resistance ratio for above insecticides. When a bioassay was tested on two resistance strains of housefly for azamethiphos and permethrin . However , results indicated that there was that across resistance to fenvalerate in stains resistant to azamethiphos and permethrin. Values of LD50 were 0.42 and 1.35 µg/female and resistant ratio 60 and 192 fold for previous strains respectively. Also results indicated that synergist piperonyl butoxide (PB) reduced resistance ratio from 141.3 to 47fold in azamethiphos and from. 385 to 21.2 fold in permethrin. Results indicated that frequent use of pyrethroid insecticides caused high resistance ratio more than organophosphorous insecticides. According to the results it can recommened to use piperonyl butoxide to reduse resistance ratio .


Article
A COMPARISION BETWEEN FATTY ACIDS RELEASED BY LIPOPROTEIN LIPASE AND PSYCHROPHILIC BACTERIAL LIPASES IN COW MILK
مقارنة تركيب الاحماض الدهنية المتحررة بفعل انزيم الليبوبروتين لايبيز ولايبيزات البكتيرية المحبة للبرودة في حليب الابقار

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الخلاصة

This investigation was aimed to evaluate the effect of Lipoprotein Lipase (LPL) and psychrophillic bacterial lipases on fatty acids liberation in cow's milk .Two treatments were undertaken, the first included storing a sample of raw milk produced under aseptic conditions at 4 ± 2 Cº for 4 days. The second, comprised addition of psychrophillic bacterial suspensions to pasteurized milk that stored at 4 ± 2 Cº for 4 days. The obtained results revealed that LPL in raw milk hydrolyzed preferably short chain fatty acids, C4, C6 and C8, as well as, long chain fatty acids C18 and C18=1. While, the psychrophillic bacterial lipases treatment, released preferably medium chain fatty acids, C10, C12, C14 and C16. These result’s proposed that LPL attacked ester bond at position 1 and 3 on triglyceride ( TG ) and bacterial lipase attacked ester bond at position 2.The result’s also showed that Acid Degree value ( ADV) for pasteurized milk inoculated with psychrophilic bacterial suspension was higher than that for raw milk produced under hygienic conditions during all period storage.

الكلمات الدلالية


Article
SEPARATION ,PURIFICATION AND PARTIAL CHARACTERIZATION OF LYSOZYME FROM CAULIFLOWER
فصل وتنقية وتوصيف جزئي للايسوزايم من زهرة القرنابيط

المؤلفون: S.M. Abdul – Rahman سوسن مصطفى عبد الرحمن
الصفحات: 111-119
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الخلاصة

This study was aimed to separate cauliflower lysozyme by using different extraction solutions, after primry experiences it was found that 0.2 M phosphate buffer pH (6.5) is the best one for extraction because the specific activity for the enzyme reached 10.9 unit/mg comparison with other extraction solutions. primary purification of the enzyme was done by concentrating the crude extract using ammonium sulphate at 60% saturation, then dialyzed aginst phosphate buffer to remove the salts . followed by appling the dilayzed concentrate on ion exchange chromatography on the cation exchange column Duolite C-464 .The results of partial purification pointed out that the enzyme yield and purification folds and specific activity were 58.2% and 7.7 times and 43.3 unit/mg respectively. The results of enzyme partial characterization showed that the optimum pH for the enzyme activity was 6, and the enzyme was most stable at pH values ranged between 5.5 - 6 . At optimization the optimum temperature for activity the enzyme exhibited the maximum activity at 60 oC at temperature degrees ranged between 30 to 80 oC while the study of heat stability pointed out that the enzyme retained almost its entire activity over 15 min incubation at 50-65 oC at pH 6 and 92% from its original activity at 70 oC .

الكلمات الدلالية


Article
EFFECT OF ADDING ERUCA SATIVA TO SOFT IRAQI CHEESE AS APRESERVATIVE
تأثير إضافة الجرجير إلى الجبن الطري العراقي كمادة حافظة

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الخلاصة

Fresh minced Eruca sativa leafs were added to soft Iraqi cheese .The addition were in three levels(15,25 and 50g/250g cheese) these treatments where refered to as 1, 2 and 3, respectively. The cheese samples were stored for six days at 7°C. Total count, Coliforms and psychrophilic bacteria were estimated. Results showed a small increase in total bacterial numbering the control(0 addition) during the six days of cold storage while there was a decrease in number in the treated samples. The psychrophilic bacteria increased in control samples, with a small increase in treatment 1 and a significant decrease in treatments 2 and 3.The Coliforms counts increased in the control while disappeared in the treated samples. The mold was seen in the control sample and treatment 1 at day six ,while it did not appear in treatments 2 and 3 .Sensory evaluation at days(0,3,6)did not show any significant differences in color ,flavor ,or bitterness between control and treated samples, while there was a significant difference in general acceptance for treatments 2 and 3.It can be concluded that Eruca sativa can be used as a preservative in soft cheese .

الكلمات الدلالية


Article
CARNOSINE PURIFICATION FROM CHICKEN PECTORAL MUSELE AND DIAGNOSIS BY SAME CHROMATOGHRAFIC TECHNIQUES
تنقية الكارنوسين من عضلة صدر الدجاج وتشخيصه ببعض تقنيات الكروماتوكرافيا

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الخلاصة

Carnosine from chicken pectoral muscle was extracted using water and purified by ion –exchange chromatography using CM-cellulose. Carnosine was identified by paper chromatography , high-performance liquid chromatography (HPLC) and ultraviolet spectrophotometer.the yield of extracted and purified carnosine was 100 mg / 100g of chicken pectoral muscle.Paper chromatography showed high purity of carnosine after ion-exchange purification and had Rf ×100 value of 20.4 .Two spots were obtained on paper chromatography after the treatment of the resultant purified carnosine with 6 N hydrochloric acid representing β-alanine and histidine which compose carnosine .These spots had Rf×100 values of 40.1, 16.7 respectively. One peak representing carnosine with retention time 6.4 min was obtained by HPLC. Two peaks were obtained on HPLC after treatment of carnosine with 6N hydrochloric acid, with retention time of 3.435, 4.423, respectively, which were close to retention times of the standard amino acid β-alanine and histidine 3.525, 4.503 min, respectively. Carnosine exhibited highest absorption at 212 nm as detected UV-spectrophotometericelly

الكلمات الدلالية


Article
INFLUENCE OF AGROTONIC FERTILIZER , MAGNETIZED WATER AND PLANTING DATE ON GROWTH, FLOWERING AND SOME CAROTENOID PIGMENTS IN MARIGOLD
تاثير سماد Agrotonic والماء الممغنط وموعد الزراعة في نمو وازهار وانتاج بعض الصبغات الكاروتينويدية لنبات الجعفري

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الخلاصة

aCollege of Agric.- University of Baghdad from March/ 2005 to March/ 2006 to investigate the effect of agrotonic fertilization levels, type of water and planting date on growth, flowering and flower content of TAGETES ERECTA from some carotenoids pigments . Highest level of the fertilizer 6 g/ L incareased height of plants 73.53 cm., No. of branches/ plant 3.28, main stem diameter 7.76 mm. and the percentage of N, P, K either in leaves or flower. The treatment 6 g/ L elevated No. and flower diameter as well 3.75 , 7.49 cm. respectively. While the intermediate of fertilizer level (4 g/ L) fastened flowering date 161.07 days . The lowest level (2 g/L) increased dry matter percentage of vegetative growth 28.48%. The highest level of fertilizer was effective on elevating flower content from Beta- carotene and lutein pigments. The pigments content was maximized on 6 g/ L level on fresh flower 21.31mg/ 100g. and on dry flower.25.27 mg/ 100 g . Magnetized water was superior on most parameter tested. Optical increased on plant height 69.40 cm , No. of branches/ plant 3.04, stem diameter 7.55 mm. and percentage of N, P, K on vegetative growth. Magnetized water increased No. and diameter of flower, fastened flowering date and dry and fresh wet flowers content from Beta- carotene and lutein 19.05, 23.35 mg/ 100 g. respectively. Planting dates were not effective on all parameters studied

الكلمات الدلالية


Article
EFFECT OF APPLICATION LEVELS OF K-SULPHATE AND K-CHLORIDE ON AVAILABILE POTASSIUM UNDER CONTROLLED ENVIRONMENT AND DRIP IRRIGATION
تأثير إضافة مستويات كبريتات وكلوريد البوتاسيوم الى التربة المزروعة بالخيار في البوتاسيوم الجاهز في الزراعة المحمية والري بالتنقيط

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الخلاصة

A field experiment was conducted in a heated plastic house belong to AL-Moktadiya company for agricultural staffs situated lies about 24 km south of Baghdad in a soil has a silty clay loam texture to study the effect of potassium sulphate and potassium chloride and their levels applied to soil planted with cucumber at a fall season of 2004 on potassium capacity and coefficient potassium release . The treatments included two potassium fertilizer sources : potassium sulphate and potassium chloride applied to soil in sex rates . Treatments were distributed according to (RCBD) with three replicates . Results showed that potassium sulphate fertilizer had significant data of both soluble and absorbed potassium compared with potassium chloride fertilizer . Values of soluble potassium were (10.95, 10.55 and 7.31) × 10-2 /cmol K. kg-1 soil for potassium sulphate , potassium chloride and control treatment respectively , while they were (89.39, 88.00 and 76.37) cmol K. kg-1 soil for potassium sulphate , potassium chloride and control treatment for adsorbed respectively. Results also showed , that the combination treatment of (1000 kg K . ha-1 applied to soil at 30 days after planting for both fertilizer sources had significant data and gave the highest values for soluble and adsorbed potassium which were (16.92 , 16.71 and 11.32) 10-2 /cmol K. kg-1 soil for potassium sulphate , potassium chloride and control treatment for soluble potassium respectively , while they it were (124.69 , 120.32 and 89.68) 10-2 /cmol K. kg-1 soil for potassium sulphate , potassium chloride and control treatment for adsorbed potassium respectively .

الكلمات الدلالية


Article
AN ECONOMIC ANALYSIS OF INVESTMENT IN RECLAMATION OF AGRICULTURAL LAND IN IRAQ FOR THE PERIOD (1989-2006).
تحليل اقتصادي للاستثمار في استصلاح الاراضي الزراعية في العراقللمدة 1989-2006

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الخلاصة

Productive Investment in agricultural land reclamation aimed at achieving economic growth and sustained development in agricultural sector by horizontal and vertical expansion in cultivated area through reclamation of soil in order to achieve economies of scale. The reclamated area could contribute in increasing the economic feasibility in order to achieve self-sufficiency from agricultural products in Iraq. The research includes the calculation of plant production value in rain-fed areas in fixed prices for wheat and barley in addition to calculation of plant production value in irrigated areas in fixed prices for different field crops . Also the value of plant production in reclamated areas in Iraq in fixed prices for different crops was calculated. The results showed the feasibility of productive investment in land reclamation projects in Iraq for the period 1989-2006 when using rate of return for investment by using Internal rate of return IRR . The IRR value was (19%) which means that agricultural productive investment is much better than opportunity cost of capital expressed by rate of interest in banks which were between 12-14% for short , medium and long term loans .

الكلمات الدلالية


Article
PAD MASS AND THICKNESS RELATIONSHIP TO THE PERFORMANCE OF EVAPORATIVE COOLING UNITE FOR POULTRY HOUSE
علاقة كتلة وسمك الحشوه في اداء وحدة التبريد التبخيري لقاعة الدواجن

المؤلفون: Ali M. Abdul-Munaim علي مازن عبدالمنعم
الصفحات: 172-179
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الخلاصة

An experiment was undertaken at Al-Rashidia region around Baghdad to investigate the ability of using alhagi as a wet pad, and the effect of pad masses2,3and 4kg with pad thicknesses 6,9and 12cm during the period from 2 July to 8 Sept./2008.This was to measure interior dry bulb temperature, cooling efficiency ,air suction velocity ,air flow ,relative humidity and water consumption in order to determine which combination is better in evaporative cooling when used in poultry houses .A factorial experiment with a completely randomized design with three replicates was used. Increasing in the pad mass from 2 to 3 kg (with no change in the pad thickness) led to obvious decrease in indoor dry bulb temperature, air suction velocity and air flow while increased cooling efficiency ,relative humidity and water consumption .When pad thickness was constant, increasi in pad mass from 3 to 4 kg decreased cooling efficiency, air suction velocity ,air flow ,relative humidity and water consumption ,but increased indoor dry bulb temperature due to the limitation in surface area to perform evaporative process. By increasing pad thickness from 6 to 9 then to 12 cm at a constant pad mass, cooling efficiency, realitive humidity and water consumption were increased, while the indoor dry bulb temperature, air suction velocity and air flow have decreased. The pad which constructed from 3 kg mass with pad thickness of 12 cm gave 22 cº interior dry bulb temperature, 87% cooling efficiency, 1.2m/sec air suction velocity, and air flow 21600m3/hr, relative humidity 77.2% and the water consumption 3.8ℓ/min. So, alhagi plants were sufficient as a wet filling and the pad made of 3 kg with pad thickness of 12cm was recommended.

الكلمات الدلالية

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