جدول المحتويات

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

Loading...
معلومات الاتصال

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

جدول المحتويات السنة: 2014 المجلد: 45 العدد: 6

Article
PREDICTING MAIZE EAR GRAIN WEIGHT IN SITU BY EAR DIMENSIONS
التنبؤ بوزن حبوب عرنوص الذرة الصفراء في الحقل باعتماد أبعاده

Loading...
Loading...
الخلاصة

To find out a simple and efficient equation to estimate maize ear grain weight on farm (in situ), twenty three maize crosses along with two synthetics were grown in the field. On the experimental farm of the Dept. of Field Crop Sci., College of Agric., Univ. of Baghdad, seeds of twenty five maize genotypes were grown in the fall season of 2013 with three replicates. At dough stage of the kernels, five naked ears of each experimental units were measured for length and maximum diameter. This will sum up 125 ears of the trial. The volumes of ears were calculated as cylinder (length × r2 × 3.1416). Grain weight of all ears were determined after harvesting and drying to 15% grain moisture. A constant was calculated by dividing ear grain weight by each ear volume. Estimated ear grain weights were tested against observed by applying correlation coefficient and it was found to be positive and highly significant (r= 0.998**). The observed and estimated values of ear grain weights were tested by t-test. The two means of observed and estimated ear grain weights were fit to 0.89 probability of t-value. The final equation to estimate ear grain weight in situ is = r2 × L × 0.94, where r is radius of ear and L is ear length. However, in case of super hybrids of high ear fertility and kernel filling, estimated ear grain weight will be = r2 × L.


Article
THE EFFECT OF GENOTYPE AND STAGE OF CUTTING IN THE QUANTITY AND THE QUALITY OF SORGHUM FORAGE
تأثير التركيب الوراثي ومرحلة القطع في حاصل ونوعية العلف لمحصول الذرة البيضاء

Loading...
Loading...
الخلاصة

The study was conducted at the farm of field crops Department, College of Agriculture, Baghdad university, Abu- Ghraib., for two seasons Spring and Autumn of 2013. To determine the effect of Sorghum genotypes and stages of cuttig on the quantity and quality of forage yield. The genotypes are Sb-0, Sb-1, Sb-2, Sb-3, Sb-7, Sb-8, Sb-9, Sb-12, Sb-14, Sb-16 and Kaffir. The stages of cutting are growth stage, Cutting at 50% flowering, cutting on 100% flowering. Layout of the exp. Was (R.C.B.D) with four Reps arranged in split-plot. Cutting stages were used as the main plot while, the genotypes were used as sup-plot. The result of the study showed That Sorghum genotypes significantly affected the quality and quantity of forage yield as following: Sb-0 genotype significantly gave the highest forage yield (54,532 and 61.759 t.h-1) for spring and autumn respectively. Also Sb-0 genotype gave the highest dry weight and fiber (15.169, 18.083, 8.304 and 9.941 t.h-1) for the spring and autumn respectively. The Sb-9 genotype gave the highest percentage of protein and protein yield (12.55%, 12.67%, 1.803 and 2.210 t.h-1) for the two seasons respectively. The stages of cut significantly affected the quality and quantity and Sorghum forage yield. The cutting on 100% flowering gave the highest forage dry matter, protein, and fiber (47.962, 54.984, 15.530, 18.114, 1.503, 1.778, 9.149 and 10.734 t.h1) for the two seasons respectively. The results also showed significant interaction between genotypes and stage of cut in all the qualities studied.


Article
THE GENETIC ANALYSIS FOR GRAIN YIELD AND COMPONENTS COMBINING ABILITY IN MAIZE UNDER TWO SOWING DATES
التحليل الوراثي للمقدرة الاتحادية لحاصل الحبوب ومكوناته في الذرة الصفراء تحت موعدين من الزراعة

Loading...
Loading...
الخلاصة

A field trial was conducted at the fields of Al- Latifyia Research Station for Agriculture Research Directorate / Ministry of Science and Technology in spring and autumn seasons 2013. A half diallel cross was conducted among six inbred lines of maize to produce 15 F1 single crosses in spring season. The seeds of parents and crosses were sown in fall season using R.C.B.D. with three replicates to analyse general and specific combining abilities and to estimate the effects under two sowing dates July 28th and August 7th. The results of genetic analysis showed that the mean squares of GCA and SCA were highly significant for all studied traits in both sowing dates, except number of ears per plant which only GCA was significant in first sowing date and number of rows per ear was only SCA was significant in second sowing date. The variance ratio 0f GCA to SCA was less than one for all traits, this implies that these were controlled by dominance effects. In the first sowing date the parental line SYN-55 was the best combiner for grain yield per plant. while in second sowing date the parental line AM-69 was the best combiner for kernel weight and grain yield per plant. Some hybrids showed desirable significant SCA effects for studied traits, in the grain yield per plant, the hybrid SYN-55 x ART-C-51 in the first sowing date and the hybrid AM-69 x ART-C-51 in the second sowing date was highest value 25.37 and 16.23 respectively. The results indicate that some inbred lines could be used in a breeding program to develop hybrids of high yield per plant and SCA to produce better grain yield hybrids.


Article
EFFECT OF SUBSTITUTION DATE BY BARLEY WITH TWO SOURCES OF NITROGEN ON INTAKE, LIVE WEIGHT DAIN, FEED CONVERSION RATIO AND DIGESTION COEFFICIENTS
تأثير احلال التمر محل الشعير مع مصدرين من النيتروجـين في كمية المتناول ومعدل الزيادة الوزنية اليومية والكلية وكفاءة التحويل الغذائي ومعامل الهضم الظاهري

Loading...
Loading...
الخلاصة

Twenty four individual Awassi male lambs were used.They were weighing 23.5 + 0.50kg and 5-7 months of age. The lambs were divided into six equal groups and fed six experimental diets containing 0, 10 and 20% whole dates supplemented with either soybean meal or urea using 3x2 factorial experimental design on daily intake, live weight gain The diets were offered accoray to the body weight 2.7 % and maintained to 9 weeks. The results indicated that the total daily feed intake was highest in lambs fed 10% dates and lowest in lambs fed the 20% dates diet. Nitrogen sources had no effect on daily feed intake, while the interaction between the level of dates and nitrogen sources was significantly effected (P<0.05). The results showed that live weight gain and feed conversion ratio were not significantly affected by levels of date in the diets and source of nitrogen. The diet containing 10% dates had the highest (P<0.05) dry matter digestibility value, followed by the diet containing 20% and 0% dates. Lambs fed diet supplemented with urea had the highest (p < 0.05) digestibility as compared with those fed soybean meal. In Conclusion, substitution of 10 – 20% discarded date by barley grain in the fattening diets of Awassi lambs had no effect on live weight gain and feed conversion ratio


Article
IMPROVEMENT OF THE NUTRITIVE VALUE OF GROUND YELLOW CORN COBS BY USED SODIUM HYDROXIDE
تحسين القيمة الغذائية لكوالح الذرة الصفراء المجروشة باستخدام هيدروكسيد الصوديوم

Loading...
Loading...
الخلاصة

Study the effect of treated the ground corncobs with 4% NaOH using two temperatures (20 and 40 C), three incubation periods (0, 15 and 30) days and three level of moisture (0, 15 and 30 days). The results indicated that the main effect of treatment have reduced significantly (P<0.05) the content of dry matter, organic matter from 968.20 and 947.10 gmkg to 724.4 and 654.06 gmkg and the content of, natural detergent fibers, hemcellulose and lignin from 841.95, 398.45 and 396.95 gmkg to 740.86, 283.05 and 336.44 as compared with untreated. A significant (P<0.05) increase in quantity of the ammonia nitrogen, acid detergent fibers acidic and cellulose from 0.105, 443.50 and 46.60 gmkg to 1.08, 456.26 and 100.07 gmkg. Also increased significantly (P<0.01) in vitro dry matter organic matter digestibility from 34.05 and 40.04% to 50.21 and 58.32% and pH from 5.83 to 9. The best treatment which gave better improvement was a associated with 30% moisture and 30 days incubation time.


Article
EFFECT OF SUBSTITUTION OF TREARED RICE BRAN FOR THE YELLOW COTN ON THE PERFORMANCE OF LAYING HENS
تاثير احلال سحالة الرز الخام والمعاملة كيميائياً محل الذرة الصفراء في أداء الدجاج البياض

Loading...
Loading...
الخلاصة

This study was conducted at the Poultry Farm of Animal Resources Dep. /College of Agriculture-University of Baghdad during the period from 20/12/2012 to 20/6/2013 to investigate the effect of chemical treatment Rice Bran (as a partial replacement) for Yellow Corn in laying hens diets on productive performance of laying hens. One hundred and twenty six hens of commercial strain (Lohmann Brown) 19 weeks old were used in this experiment. The hens were weighted individually and distributed in to eleven experiment treatments. Each treatment with three replicates and each replicate consisted of 6 hens. The birds fed the experimental diets which were as following:Treatment1 (Control group T0)100% yellow corn + 0.0% rice bran,Treatment 2(A1)75 % yellow corn + 25 % raw rice bran,Treatment 3(A2) 50 % yellow corn + 50% raw rice bran,Treatment 4 (B1)75% yellow corn + 25% Acid treated rice bran,Treatment 5 (B2) 50% yellow corn + 50 % Acid treated rice bran,Treatment 6 (C1) 75 % yellow corn + 25 % Alkali treated rice bran,Treatment 7 (C2) 50% yellow corn + 50% Alkali treated rice bran. The data of this study revealed that no significant differences between treatments (accept Alkali treatments) groups during production periods in the mean of egg production percentage (H.D.%) ,egg mass, feed intake, feed conversion ratio, live body weight, weight gain and mortality ratio. The Acid treatment group (B1) recorded the highest mean egg weight (64.24 gm) as compared with other treatments, it can concluded from this study that a partial replacement of raw or Acid treatment Rice Bran for Yellow Corn in laying hens diets has no adverse effect on productive performance of laying hens.

الكلمات الدلالية

Rice bran --- chemical treatment --- layer.


Article
THE EFFECT OF IN OVO-PROBIOTICS INJECTION ON SOME PRODUCTIVE PERFORMANCE OF BROILERS
تأثير حقن بيض التفقيس بالمعززات الحيوية في بعض الصفات الإنتاجية لفروج اللحم

Loading...
Loading...
الخلاصة

The present study aimed to evaluate the statement effect of in ovo injection with probiotics bacteria at seventh days of incubation on subsequence productive performance of broiler chicks Ross308 with determining the best type of probiotic bacteria vital injected used in this study. The experiments were carried out in the hatchery and poultry farms of agriculture college-University of Al-Muthanna, while the chicks were reared during the period of Nov. 5th, 2011 until Des. 31st, 2011. The treatment groups as follow: First group (T1) (Negative control): without injection. Second group, (T2) (positive control): eggs Injected sterilized distilled water, Third treatment (T3): eggs injected with Lactobacillus acidophilus by 107 bacteria/egg, Fourth treatment(T4):eggs injected with Bacillus subtilus by 107 bacteria/egg, Fifth treatment (T5): eggs injected with Bifidobacterium by 107 bacteria/ egg and Sixth treatment(T6): eggs injected with mixture of probiotics above by 108 bacteria/egg. A total of 360 unsexed day old chicks hatched from six treatments were reared in the batteries (four floors for each treatment), each floor had a cage dimensions 1.5×1 meters, chicks were randomly distributed to treatment )60 chicks/treatment(, three replicates for treatment (20 chicks per replicate). Results showed that injection eggs with probiotics improved a highly significant (P≤0.01) in productive performance, average body weight, weight gain, feed intake, food conversion efficiency and production index, with a significant reduction (P≤0.05) in the mortality of broilers.


Article
THE EFFECTIVENESS OF THE BACTERIA PSEUDOMONAS FLOURESCENS AND RHIZOBIUM LEGUMINOSARUM AGAINST BEAN YELLOW MOSAIC VIRUS
فعالية بكتريا Pseudomonas fluorescens وRhizobium leguminosarum ضد فايروس موزائيك الفاصولياء الأصفر

Loading...
Loading...
الخلاصة

The study was conducted to evaluate the efficiency of Pseudomonas fluorescens and Rhizobium leguminosaruato induce systemic resistance in broad bean plants against bean yellow mosaic virus (BYMV). Broad bean seeds were submerged in suspension of R. leguminosarua, P. fluorescens and combined of them. plants emerged from these seed were inoculated with BYMV at three stages after germination. Plants height, foliage fresh weight, root fresh weight , foliage dry weight, root dry weight, Results showed that the disease incidence in plants emerged from seed treated with R.leguminosarua, P. fluorescens and combined of them were zero%. The decease incidence in plants emerged from seeds treated with the three above agents and inoculated with BYMV were 26, 25 and 20% respectively compared with zero% in control (healthy plant) and 92% in BYMV infected plants , and virus concentration in the plant, by DAS- Elisa using polyclonal antibodies for BYMV after 50 days of cultivation. High reduction in virus, concentration in plants from treated seeds and inoculated with virus was absurd. The absorbance values at 450 nm of extracts from plant treated with P. fluorescens, R.leguminosarum and combined of them 0.225, 0.240 and 0.150 respectively with inhibition percentages 59.75, 57.00 and 72.00% respectively compared with absorbance values 0.048 with extracts from healthy plants and in plants emerged from treated seeds non-inoculated with BYMV and 0.558 of extract from BYMV infected plants submersion of seed in bacterial suspension induced significant promotion in plant growth parameters.


Article
HOST-PARASITE RELATIONSHIP OF PASTEURIA PENETRANS AND MELOIDOGYNE SPP AT THE MOLECULAR LEVEL
العلاقة بين البكتريا باستوريا بنترنس وديدان تعقد الجذور عند المستوى الجزيئي

Loading...
Loading...
الخلاصة

The endospore forming bacterium, Pasteuria penetrans, is a hyperparasite of the root-knot nematodes, Meloidogyne spp. Which are economically important pest on a wide range of agricultural crops. The life cycle of both organisms is discussed and emphases are given to the potential of this bacterium to be successful biological control agents. The development of Pasteuria as a commercial biocontrol agent is faced with two obstacles, its inability to grow in vitro outside its host and its high host specificity. While the in vitro vegetative growth of the bacterium has been possible, getting this growth to sporulate has been difficult. Recent advances in nucleotide sequences, search of genomes, understanding the role of cation concentration in growth medium and the phosphorelation pathway of sporulation enzymes have proved useful. Genomic data has also provides useful information to understand the attachment mechanism of endospores to the nematode cuticle which revealed the involvement of the interaction between the collagen-like fibers on endospore surface and the mucins on the nematode cuticle . These findings can be utilized in biological control of plant nematodes and to draw the attention of the bio control specialist in the Arab countries to this important bacterium and prospect for future research in this field.


Article
EFFECT OF SPRAYING SOME MANURES EXTRACTS IN GROWTH AND YIELD OF TOMATO
تأثير رش مستخلص بعض المخلفات العضوية في نمو وإنتاج الطماطة

Loading...
Loading...
الخلاصة

The experiment was carried out at the vegetable field of the College of Agriculture, Univ. of Baghdad in the seasons of 2012 and 2013 to examine the effect of four types of manure )bovine, poultry, sheep, and corn cobs( with two concentrations, %50 and %100 (from stock solution of 1 kg: 10 L) dissolved in two types of water, hot and cold . On the growth and yield of tomato Lycopersicon esculentum Mill cv. Jenan. The experiment was conducted according to the randomized complete block design with three replications. Fifth leaf dry weight along with leaf content of nitrogen, phosphorus, and potassium were recorded at three growth stages : vegetative growth, fruit set, and at the third harvest. Results showed that all aqueous manure applied significantly improved vegetative growth traits along with improving leaf and fruit nutrient content and eventually yield when compared with control (water only). Best results were obtained when using hot water with %50 sheep manure and %50 poultry manure where C9 significantly increased fruit content of the three elements under investigation along with increasing fruit number and weight and total yield which scored : 111.77 and 114.33 T.ha-1 for season 1 and 2, respectively. In addition, C5 significantly increased fruit vitamin C, fruit hardness, total soluble solids (TSS), and gave the highest potassium content in fruits.


Article
GENETIC VARIATION IN SUMMER SQUASH UNDER ELECTRIC SHOCK AND USING SSR MARKERS
التغايرات الوراثية في قرع الكوسة تحت الصعق الكهربائي ومعلمات SSR

Loading...
Loading...
الخلاصة

Carried out this research in University laboratories of Wroclaw Environment and life sciences in Poland of March 10 to June 5, in 2010. To defined the genetic variations for seven genotypes of Cucurbita pepo L. to include 3 superiors hybrids refer to A,B and C and 4 parents refer to 1,2,3 and 4,when exposed to alternating electric shock a magnitude of 0, 1, 3, 5, 7 and 9 amp. SSR markers showed genetic variation among the plants after measurement the genetic percentage. characterized by the severity of shock 5A as being of genetic distance was high with the control treatment in most genotypes reaching 74.4% in inbred line 3 and 71.8% in inbred line 4 and 89.7% in the hybrid A (2 × 1) and 66.7% in the hybrid B (3 × 1). Indicating that the treatment of seeds with electric shocks, led to the creation of genetic variations and these variations can be considered as good sources for subsequent breeding programs. This confirms the tree diagram of the genetic relationship which shows the presence of a genetic divergence between certain genotypes and the presence of a genetic affinity between other genotypes.


Article
RESPONSE OF RICE AND ACCOMPANIED WEEDS TO HERBICIDES APPLICATION RATES
استجابة الرز والأدغال المرافقة لمعدلات استخدام مبيدات الأدغال

Loading...
Loading...
الخلاصة

A field trial was carried out at Mishkab Rice Research Station, Al-Najaf Al-ashraff governorate during the summer seasons of 2012 and 2013 to investigate the response of three cultivers of rice (Anber-33, Yasamin and Program-4) and accompanied weeds for different application of herbicides (Nominee and Renbo with of recommended and 75% application of recommendation) and weedy. The design used was RCBD with split plot arrangement of three replicates. Number of weeds was significantly reduced by 20.33 and 5.00 plant.m-2 in Anber -33 which gave the highest average of plant height valuses 132.90 and 116.76 cm in both season, respectively, as compared with two cultivers Yasamin and program-4. gave cultiver Yasamin highest grain yield, 4314 and 4178 kg.h-1 in both season, respectively. Herbicide treatment Renbo 75% gave lowest valuses weed density, 17.44 and 6.22 plant.m-2 of 30 day after sowing. gave two herbicides (Renbo 100% and Nominee 100%) highest average of number panical and grain yield, 428.20 and 462.30 panical. m-2 , 4567 and 3992kg.h-1 in both season ,respectively, as compared with weedy treatment gave lowest valuses 270.40 and 363.90 panical. m-2, 1977 and 2323 kg.h-1.It can be concluded that cultiver anber-33 was the best in weed competition, while cultiver Yasamin was more responsive for herbicide. Were herbicide concentration superior in giving the lowest weed density and increasing in yield and its components compared with the weedy treatment.


Article
ESTIMATION OF THE FACTORS AFEECTING ALLOTMENTS OF INVESTMENT OF MODERN IRRIGATION METHODS IN IRAQ
تقدير العوامل المؤثرة في التخصيصات الاستثمارية لطرائق الري الحديثة في العراق

المؤلفون: A. S. Shukur علي صلاح شكر
الصفحات: 653-640
Loading...
Loading...
الخلاصة

Technology progress is considered one of the basic pillars for the acceleration of social and economic growth in different countries. Advanced technology is a common cause of many economic development activities including the agricultural development. In studying the irrigation technology during the studied period, we noticed that the number of modern irrigation sets in Iraq was (12769) units, and Basra province was the first with a total of (3407) sets. Average annual growth of investment allotment for the period 1993 – 2002, which represent half of the studied period, was (-3.49) percent, and below zero, as well, for the period 2002 – 2012. Gross domestic product (GDP) for both periods of udy were (10.81) for the first period and (14.24) for the second period. Annual average growth of the plant production for the period 1993-2002 had a positive sign and reached the maximum of (9.33), while it was (-11.12) for the second period of the study. Other data proved that the highest percentage of contribution of the plant production to the agricultural production in general was in 2001 with an average of (80.7%), while the lowest percentage was (47.5%). In order to recognize the main factors affecting the investment allotments for the new irrigation technology, investment function was estimated which expresses the relationship between investment allotments, as a dependent variable and each of the GDP and plant production, in fixed prices, as independent variables. By using the ordinary least square method (OLS), a linear form is found to be the best form to express this relationship due to its success in statistical, economical and standard tests. The GDP was the most effective factor in investment allotment. It is been found that one unit change will produce a change of about 139.8, considering other factors as constants. The independent variables were able to explain 71% of the changes in the dependent variable, and F test expressed the significance of the model. The research concluded that the decrease in investment allotment on irrigation technology during the studied period lead to weak agricultural investment in general. The increase in the GDP did not play its role to increase the total investment in this kind of investment. The study recommend to eliminate the restrictions on agricultural investment and release sufficient finance for such agricultural investment.

جدول المحتويات السنة: المجلد: العدد: