Table of content

The Iraqi Journal of Agricultural Science

مجلة العلوم الزراعية العراقية

ISSN: ISSN:00750530 / EISSN:24100862
Publisher: Baghdad University
Faculty: Agriculture
Language: Arabic and English

This journal is Open Access

About

The Iraqi Journal of Agricultural science (TIJAS) was established in 1966 in the college of Agriculture – University of Baghdad. It was published with two issues each volume. In 2000, TIJAS started with six issues each volume till now . In this year the volume number of TIJAS is (47). TIJAS covers papers in plant & animal sciences, besides, Agricultural Economics, Agricultural Extension, Agricultural Mechanization and basic sciences, such as Chemistry and Physics Related to light, heat, water and winds. Each volume includes around 75 articles, about 20-25 article/ issue depending on a reliable accepted paper for publication.

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

Table of content: 2010 volume:41 issue:3

Article
GENETIC PARAMETERS AND BREEDING VALUES FOR GROWTH TRAITS IN TURKISH AWASSI LAMBS AS A TOOL FOR SELECTION
المعالم الوراثية والقيم التربوية لصفات النمو للحملان العواسي التركي كأداة للإنتخاب

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Abstract

This experiment was carried out at the Sheep and Goat Research Station /Abu Ghraib (24 km west of Baghdad) during the period between 1/7/2008 to 20/6/2009. The objective of the present study was to evaluate the Turkish Awassi lambs, genetically, for the average daily gain from birth to weaning trait through estimating the breeding values of the ewes. The effect of some genetic and environmental factors on the studied traits were estimated. Data were analyzed to estimate the heritabilities and repeatabilities for growth traits. Breeding values for average daily gain were estimated (176 lambs of 155 ewes for the year 2007 and 278 lambs of 234 ewes for the year 2008 and 216 lambs of 170 ewes for the year 2009). General Linear Model (GLM) procedure in the SAS computer package was used for estimating the fixed and random effects. Breeding values for the growth rate were estimated using the Fox-Pro program. The heritabilities for birth weight, weaning weight and growth rate were 0.17, 0.07 and 0.09, respectively. The repeatabilities for birth weight, weaning weight and growth rate for the years 2007 and 2008 were 0.21, 0.33 and 0.29, respectively. The highest mean index of the ewe (breeding value + 100) for the average daily gain from birth to weaning in 2007 was 115, while the lowest of mean index of ewe was 89, and reached the highest (110) and lowest (81) of mean index of ewe for the same trait in 2008 for the same flock. The highest and lowest values for mean index of ewe in 2009 to the flock was 120 and 0, respectively. In conclusion, the estimate of the breeding values by using cumulative records was recommended as a tool for selection for growth rate.

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Article
ROLE OF SOME GENETIC AND ENVIRONMENTAL FACTORS IN GROWTH TRAITS OF TURKISH AWASSI, LOCAL AND CROSSBRED LAMBS
دور بعض العوامل البيئية والوراثية في صفات النمو لـدى حملان العواسي التركي والمحلي والمضرب

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Abstract

This experiment was carried out at the Sheep and Goat Research Station /Abu Ghraib (24 km west of Baghdad), and over a period from 2007 to 2008 using 1095 records for birth weight and 592 records for weaning weight and average daily gain from birth to weaning (growth rate) in Turkish Awassi, Local and Crossbred flock. The aim of this study is to investigate the effect of some genetic and environmental factors (genetic groupe - year of birth, dam age at birth, sex, birth type and lambing month) on the studied traits by using least squares method for analysis of data. The overall means for birth weight, weaning weight and growth rate were 3.51 kg , 27.75 kg and 202 g/day, respectively. The least squares means for birth weight, weaning weight and growth rate of the Awassi Turkey sheep for the year 2007 were 3.51 kg, 34.27 kg and 253 g/day and for the year 2008 were 3.99 kg, 26.08 kg and 185 g/day, respectively, while the least squares means for the same traits of the Local Awassi sheep for the year 2007 were 3.09 kg, 27.85 kg and 208 g/day, respectively. The least squares means for birth weight, weaning weight and growth rate from birth to weaning of the Crossbreed Awassi for the year 2008 were 3.44 kg , 22.80 kg and 162 g/day, respectively. There were a highly significant effect for the fixed effects (genetic group - year of birth, sex, birth type and lambing month) on the weight at birth, weaning and the growth rate traits. Regression coefficient of weaning weight on weaning age were 0.014±0.02 kg/day showed no significant, while the regression coefficient of growth rate on weaning age were - 0.0015±0.00018 g/day showed a highly significant.

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Article
ADMINISTRATION OF CONCENTRATIONS OF FOLIC ACID AND THE LEVELS OF SOME ENZYMES IN THE BLOOD SERUM OF AWASSI SHEEP RAMS
تجريع تراكيز من حامض الفوليك ومستويات بعض أنزيمات مصل الدم في كباش الأغنام العواسية

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Abstract

This experiment was conducted to investigate the effect of various levels of folic acid on some serum enzymes activity of Awassi rams. Twelve rams of 1.5 years old and 50-60 kg body weight were randomly divided into 3 equal groups. First group was left without treatment and regarded as control group (C), while the second group T1 and third group T2 were treated with 100 and 200 mg of folic acid/ head, respectively as two dose per week for 8 weeks treatment period. Blood samples were collected before and after 4 and 8 weeks from the beginning of experiment. Serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) as well as alkaline phosphatase (ALP) activities were measured. AST activity was significantly increased (P<0.05) after 8 weeks of treatment as compared with its activity before and after 4 weeks of treatment. Folic acid did not affect ALT and ALP activity, however, their activity decreased significantly (P<0.05) after 4 and 8 weeks for ALT enzyme and 8 weeks for ALP enzyme as compared with their initial activity. It can be concluded that Awassi sheep rams treated with folic acid leads to resultant a positive altering in the levels of studied enzymes as a result of improved metabolic processes and preserve the integrity of liver cells and prevent cases of necrosis and apoptosis in it.

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Article
THE RELATIONSHIP BETWEEN ROOT GROWTH AND YIELD IN SAFFLOWER INFLUENCED BY IRRIGATION INTERVAL AND POTASSIU LEVELS
العلاقة بين نمو الجذر وحاصل العصفر بتأثير فترات الري ومستويات البوتاسيوم

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The study was conducted at experimental field of Field Crops sciences Department – College of Agriculture – University of Baghdad during two seasons (2007-2008). The objective of the study was to investigate the influence of irrigation interval and potassium levels on root growth of safflower variation. Almaiss, and the relationship with yield and yield component characters. The study was carried out according to Split Plot arrangements by using Randomized Complete Block Design including four replicates. Irrigation treatments were 2, 4 and 6 week intervals in addition to control (un-irrigated). These treatments occupied the main plots, while the subplots were occupied by potassium (K2SO4) levels (0, 100, 200, 300 and 400) kg/ha. Results showed superiority of irrigated over un-irrigated. Four – weeks interval irrigation was superior in giving the highest root length (28.8 and 27.85) cm and harvest index (41.68 and 50.11)% for two years respectively. Furthermore, the same treatment was superior in head number (80.39 and 76.7) heads/plant and 300 seeds-weight (12.36 and 55.25) gm for two years respectively. Dry matter weight increased from 295.95 to 308.4 gm/plant that confirmed the improvement of System Capacity Constant since it gave the highest plant yield (104.9 and 143.8) gm for two years respectively. Plants of this treatment were characterized by their efficiency in light and Co2 assimilation as it gave the highest efficiency (410.42 and 493.73) gm/cm2 .Fertilization with 400 kg/ha gave the highest root weight (28.75 and 140.19) cm, seed number per head (54.81 and61.13), 300 seeds-weight (13.22 and 13.44) gm, plant yield (115.91 and 167.50 )gm/plant, dry matter yield (258.94 and 286.06)gm/plant , Harvest Index (44.01 and 55.91%) and yield efficiency (461.62 and 580.12) gm/cm2.

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Article
RESPONSE Of RICE TO SEEDING RATES AND HERBICIDES
استجابة الرز لمعدلات البذار ومبيدات الادغال

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Abstract

A field trial was carried out at Mishkab Rice Research Station, Al-Najaf governorate during the summer seasons of 2008 and 2009 to investigate the effects of seeding rates (120,140,160 and 180 kg.ha-1) and herbicides ( control, oxadiazon, propanil and weed-free) on some growth charactristics, yield and its components of Yasamin rice cultivar. The design used was split plot RCBD with arrangement by four replicates. The results indicated that the seeding rate 180 kg . ha-1 was superior in giving the highest values of grain yield, 7.4 and 7.0 ton.h-1 in both seasons, respectively, These increases were due to the highest number of tillers.m-2 (697.3 and 680.9 tillers.m-2), respectively. Also, this seeding rate gave the highest average of plant height (87.9 and 83.5cm). For herbicide treatment oxadiazon gave highest grain yield, 7.5 and 7.2 ton.h-1 in both seasons, respectively,as compared with propanil. It also gave lowest percentage (%7.6 and 7.8%) of fertility. It can be concluded that seeding rate of 180 kg.ha-1 and using oxadiazon was the that best combination effective control of weeds, and the highest grain yield in both –seasons.

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Article
COMPETITIVE ABILITY OF SOME SORGHUM CULTIVARS TO ACOMPANIED WEEDS
القـابلية التنافســـية لبعض أصــــناف الذرة البيضاء للأدغـــــال المرافقـــــة

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Abstract

To investigate the competitive ability of some sorghum cultivars to weeds , a field experiment was conducted in the fall season of 2008 at the Agricultural Fields of Missan, province. A split-plot in RCBD arrangement was used with three replications. The main plots included weed control treatments ,weedy check, weed free, herbicide application and mechanical control treatment whereas the sub-plots treatment included sorghum cultivars namely Milo, Tabt, Hamam. The results showed that weed competition caused significant reduction in grain yield of all cultivars by 56.85% in comparison with the weed free treatments .The plant height of sorghum plant were reduced by 29.51% , sorghum dry wight ,number of grain/ear and weight of 1000 grains were reduced by 40.13, 30.45, 47.67% respectively. Application of atrazine and mechanical weed control treatments caused significant increases in grain yield and its components by 1.08 and 2.12 t/h ,340.23 and 148.57 grain/ear and 5.4 and 11.76 g/1000 grains respectively. The results also showed that various sorghum cultivars response differently to different weed treatment. Milo cultivar caused greater reduction in weed density 10.92 plant/m2 and weed dry wights 72.4g/m2, Therefore Milo cultivar gave heighest grain yield 6.03 t/h ,Bilogical yield 16.03 t/h and greater plant hight 179.32cm.Various cultivars showed greater deterances in competitive ability to weeds, cultivars caused least reduction in grain yield , grain / ear and weight of 1000 grains in weedy treatment in comparison to free weed treatment considered as greater cultivar competitive ability to weeds. This was observed with Milo cultivar 30.21% grain yield,17.03% grain/ear and 31.64% weight of 1000 grain. It was concluded that this cultivar have more competitive ability to associated weeds.

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Article
RESPONSE OF ROSA DAMASCENE TO PHOSPHORUS AND BENZYLADENIN
استجابه الورد الشجيري R. damascena للفوسفات والبنزل ادينين

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An experiment on the effect of phosphorus fertilizer concentrations and benzyladenin (BA) on growth and flowering of Rosa damascena was conducted. Plants were cultured on 12/4/2009 in the infront garden of Hort. Dept., College of Agric. Three levels of P; 20 or 40 g/l were applied while BA levels were 0,50,100 or 200 mg/l. Plants were sprayed with P or BA twice. First foliar spray was achieved one month after planting ; the second spray was 21 days after the first application. Results could be summarized as follows.All phosphorus fertilizer and BA concentrations were significantly increased vegetation and flowering parameters tested. The 40 g/l of P was superior on elevating plant height, no. of leaves, leaves area and chlorophyll content. Values were 64.96 cm, 109.08, 83.04 cm2 and 458.2 mg/m2 respectively. While 20 g/l of P was more effective or no. of breaches, branch diameter (12.04 branch plant ,3.65cm.) respectively. BA at 100 or 200 mg/l significantly increased height of plant (61.03, 61.53 cm.) However, all BA levels were significantly elevated no. of branches, no. of leaves, leave area and chlorophyll leaves content. The highest values were 12.00 branches/ plant, 103.04, 85.33 cm2 and 447.2 mg/m2 respectively.Significant increases was registered in no. of flowers, flower diameter. Flowering period and flowers dry weight with P concentrations. BA levels were significantly effective on no. of flowers, flower diameter, vase life and flowers dry weight. The highest values were 7.22 flowers/ plant, 12.11 cm., 10.89 days and 29.17 g. respectively.Most of interaction treatments were significantly effective on the growth and flowering parameters tested

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Article
EFFECT OF FOLIAR APPLICATION OF BORON ON GROWTH, FLOWERING AND YIELD OF STRAWBERRY
تأثير رش البورون في نمو وتزهير وحاصل الشليك

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This research was conducted in Strawberry field at Horticulture Department, College of Agriculture and Forestry, Mosul University, during 2006-2007 season to study the effect of foliar application of four concentration of Boron (0, 10, 20 and 30 mg/L) using Boric acid (17% Boron) on vegetative growth flowering and yield of two Strawberry (Fragaria×ananassa Duch.) cultivars (Hapil and Kaiser's samling).All treatments applied till dew point by using little amount of liquid soap as surfactant , each concentration of Boron sprayed twice, the first one at 30/11/2006 and the second date was at 1/5/2007 . The field of experiment divided to three blocks, plants were treated with a systematic fungicides (Asdazim 50wp) at range (1 mg/L) . Transplant planted lines to the east direction , length of each furrowed was 2.25m , with 25cm in a high the distance between two liens was 75cm and the distance between plants was 25cm . A randomized complete block design with three replicates and each experimental consist of nine plants used and a Duncan multiple range test at 5% to compose. Result obtained indicated that, leaf area , percentage of flower set , fruit weight , plant yield and total yield were significantly increased in Hapil cultivar as compare with those in Kaiser's samling cultivar . At the same time , the highest increases in leaf area , percentage of flower set and average weight of fruit recorded by foliar application of 20 mg/L of Boron, but the highest yield per plant and total yield obtained by application 0 mg/L Boron on Hapil cultivars plants. While application of 30 mg/L of Boron on Kaiser's samling plants gave the best result in percentage of leaf dry weight and total soluble solids in fruits.

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Article
DETERMINATION OF CHOLESTEROL IN MILK BY ENZYMATIC METHOD EMPLOYED IN DETERMINATION OF BLOOD CHOLESTEROL
تقدير الكولسترول في الحليب بالطريقة الأنزيمية المستخدمة لتقدير كولسترول الدم

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Abstract

The enzymatic method for determination of cholesterol in blood serum was modified to be suitable for determination of cholesterol in milk. Milk samples (0.2 g) are saponified directly (with out extraction of fat) in capped tubes with ( 0.5) Mmethanolic KOH solution by heating for 15 min at80C. After cooling with tap water ,1ml of distilled water was added to the mixtures shaked well for 10 seconds, and the unsaponifiable fractions were extracted with 5ml hexane.The reaction was carried out by using 0.25ml of hexane layer after evaporating the hexane at 37C,mixed for 10 minute with 1ml of enzymatic kit supplied by Spinreact co. [ cholesterol esterase(CE), cholesterol peroxidase, cholesterol oxidase(COD)] ، the concentration determined by using spectrophotometer at 550nm and compare with standard solution at concentration 200mg/100ml. The arithmetic mean of cholesterol content for skim milk, half cream milk, and the whole milk were found(1.29± 0.01,5.30±0.03and12.19±0.04) mgm/100 ml respectively. The precision was 99.89%. The method has been successfully applied to quantitate cholesterol in a variety of milk .

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Article
EFFECT OF ORANGE PEEL EXTRACT ON SOME MICROORGANISMS CAUSING FOOD SPOILAGE AND ITS ROLE IN SHELF LIFE OF IRAQI BREAD
تأثير مستخلص قشور البرتقال المحلى والمصرى فى بعض الاحياء المجهرية تأثيرايه المسببه لتلف الغذاء ودوره فى اطالة مدة خزن الخبزالعراقى

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The dry and fresh Iraqi and Egyptian orange (Citrus sinensis) peel extracts were evaluated for antimicrobial activity against some gram-positive bacteria Staph. aureus, B. subtilis and gram-negative bacteria Sal. typhimurium, E. coli and the molds Rhizopus spp ,Mucor spp, Aspergillus spp, Penicillium spp. Three extracts were used 1000, 2000, 4000 ppm of Iraqi and Egyptian orange peel oil to point their effect on tasted microorganisms. It was shown that Staph. aureus, B. subtilis were more affected than Sal. typhimurium, E. coli bacteria. The maximum diameters of inhibition clear zones to the first two bacteria by using concentration of 4000 ppm of dry Iraqi orange peels oil were 7.4, 7.2 mm consequently while they were 6.4, 3.2 mm for the second bacteria at the same conditions. The mold Rhizopus spp was more inhibited when the concentrations of 2000, 4000 ppm of dry Iraqi orange peel oil were used; the percentages of the inhibition were 26, 41% consequently. The oil extracted from different orange types was added once to the surface of bread dough and well-mixed with dough once more using the concentrations of 0.1, 0. 3% /wt of dough used for making bread and study their effect on growth inhibition of bacteria and mold and on the shelf life of stored bread and improving its physical quality. Through different storage intervals 24, 48, 72, 96, 120 hours using B1treatment (addition of 0.1% Iraqi dry peel oil to bread dough) and B6 treatment (addition of 0.3% Iraqi fresh peel oil to bread dough) and B3 (addition of 0.1% Egyptian dry peel oil to bread dough), the results obtained were encouraged in term of reducing the total bacteria and mold grown on local bread in comparison with control treatment. As a conclusion, the microbiological and physical results regarding the use of oil extracted from the Iraqi dry and fresh peel orange were encouraged and sice they extend the shelf life of Iraqi bread.

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Article
THE SLIPPAGE AND SOME TECHINCAL PARAMETERS FOR TWO TYPES OF PLOWS
الانزلاق وبعض المؤشرات الفنية لنوعين من المحاريث

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This experiment was conducted on a silty clay loam soil which was planted with two crops : corn and sunflower . Plant residues and weed plants were left on soil surface before performing plowing proeess . The experiment consisted of two types of plowing : Chisel plow and moldboard plow . The second factor of the experiment involved two plowing depths :15 and 22cm .The tractor speed for the chisel plowing was 3.375 km /hr,while that for the moldboard plowing was 2.571km/hr. Arandomized complete blok design (RCBD)in a split – plot arrangement was used in this experiment with three replications.The soil moisture content range during the time of the plowing was 16 to17 % . The results obtained indicated that there were significant differences between the plowing types and depths of plowing along with their interactions for all parameters studied . For a constant plowing depth , the chisel plow gave the highest slippage percentage of 33.912% with a practical productivity of 0.336 ha/hr and the highest disturbed soil volume of 517.10 m3/h.The moldboard plow gave the highest field efficiency of 61.293% and also gave the highest number of clods >10cm in diameter which was 11.666 clods in meter square .On the other hand , for any plow ,increasing plowing depth from 15to 22cm gave the highest slippage percentage range of 24.805 to 40.22% with a soil disturbed volume of 391.47 to 437.97 m3/h. The depth 15 cm marked by having a number of clods >10 cm as many as 7clods /m2 . Ingcreasing plowin depth from 15to22cm decreased the practical productivity from 0.279 to 0.223 ha/hr and also decreased the field efficiency of paactical productivity from 59.772 to 47.682 % .

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Article
THE RELATIONSHIP BETWEEN TRACTOR PRACTICAL VELOCITY AND DIFFERENT MOISTURE CONTENT ON PLOWING SOIL LAYER
علاقة سرعة الحراثة ومستويات الرطوبة في الطبقة المحراثية للتربة

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Plow soil packed layer consisting of soil (induced hardpan) or (plow sole) is generally the result of the frequent passage of farm machinery and heavy machinery to carry out operations involving the preparation of agricultural land, cultivating, spraying, harvesting, transport and others. The emergence of this class, usually to reduce the productivity of the land because of the growth roots, proliferation and movement of air and water in that class. This study involved the performance of the DT-75 Crawler tractor with Moldboard Plow in a silt clay loam soil under three moisture levels and two practical speed and depth of tillage between 25 and 30 cm. one of the objectives of this study is to determine the impact on the characteristics of the soil layer between 35 and 45 cm. To have been measuring the bulk density, porosity and soil penetration resistance before and after the operations study. Results of the study showed that there are a significant differences happened under three moisture levels and two practical speed, the reduction in soil moisture content from 22 to 19 % increased soil bulk density and soil penetration resistance but reduced soil porosity .Further reduction in moisture content from 19 to 14% increased soil porosity and soil penetration resistance but decreased soil bulk density. The increasing of practical speed from 1L to 2L decreased soil bulk density and soil penetration resistance but increased porosity, its recommend &confirmed to use subsoil plow to break the packed layers and to reduce the impact of increased density and the apparent resistance to penetration and increase the porosity to improve the physical characteristics and make them more susceptible to the exploitation of agriculture.

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Article
ECONOMICAL ANALYSIS OF PADDY SUPPLY RESPONSE IN NAJAF GOVERNORATE DURING 1985 – 2006
تحليل اقتصادي لاستجابة عرض محصول الشلب في محافظة النجف للمدة 1985-2006

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The main objective of this study was to estimate supply response of planted acreage for paddy , during the period 1985 -2006 . This function is estimated as a conditional supply function , because its dependence on the limited factor ( irrigation water ) . To get this estimate , the producer was considered as avenue maximizer instead of profit maximizer in order to determine the optimal allocation of water between its alternative usages . The results indicated that the major determinants of planted acreage are :the index number of lagged prices of the crop , lagged planted acreage, and irrigation water .These variables account for 74% of total variation in the planted acreage of paddy . The estimated elasticities indicated that water elasticities of planted acreage were higher than own and cross-price as it were 0.4203 .That means a 10% increase in irrigation water in Eupharate river causes a 4.2% increase in the planted acreage for paddy. The own elasticity for paddy crop with respect to its relative price was 0.355.That means a 10% increase in relative price of paddy results in 3.6% increase in planted acreage in short-term and 5.8% in long term. That may offset the importance of irrigation water in determination of planted acreage and in limitation of its responsiveness to price change . Planted acreage with this crop is predicted for the period 2007 – 2012 through the prediction of the values of all independent variables in the supply response function with the assumption of stability of all factors in 2015. Acreage planted with paddy in 2006 is expected to increase 3.96% in 2015 .

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Article
ESTIMATION OF THE ECONOMIC EFFICIENCY OF EFFECTIVE RESOURCES FOR A SAMPLE OF WHEAT FARMERS FOR THE SEASON 2008/2009
تقدير الكفاءة الاقتصادية للموارد الفعالة لعينة من مزارعي محصول القمح للموسم الزراعي 2008 - 2009

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Wheat is considered an important food stuff in nowadays as well as in previous time. The need for more wheat increases every year due to the rise in population growth especially in developing countries. The yield in most developing countries is lagging behind the total consumption of the wheat. Iraq is one of the developing countries which has the problem of production shortage from this crop . The self sufficiency ratio of this crop in Iraq decreased from 48% in 1980 to about 14% in 1989. The amount of the gap was about (2355) thousand tons in the year 2000. In spite of the importance of wheat whether in total area cultivated or in the value of wheat production relative to gross agricultural product, but yield was not as high as international level. The aim of this research is to identify the role of effective resources on average yield of wheat. In order to get field results, data were collected through questionnaire for the region farmers, during the year 2008/2009 and for different areas. Quantitative analysis was used to analyses data. Linear function was the best estimated functions according to economic, statistical and econometrical criteria. The total function was significant in the significance level of 1% according to (F) test, the determination coefficient (R2) was 89%. The autocorrelation between residuals was absent according to (D.W) test. The results showed the positive effect of land , seeds and fertilizers on production quantity . According to research results it could be recommended to increase the cultivated area of the crop and this could be achieved through using effective resources with recommended quantities by specialists . Also suitable quantities of labour force could be employed to increase domestic production in order to be compatible with population growth to decrease import .

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Article
BIOLOGICAL CONTROL OF COGONGRASS BY C. DESTRUCTANS AND GLYPHOSATE.
المكافحة الاحيائية للحلفا بالفطر C. destructans والـكلايفوسيت.

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This experiment was carried out to evaluate the efficacy of some fungi that associated cogon grass rhizomes to infect it, and the efficiency of integration between the fungus Cylindrocarpon destructans and the herbicide Glyphosate to control cogon grass. Results of study the effect of soil treatment with spore suspension of 17 tested fungal species of Cylindrocarpon coprosomae(GC6, GC16, GC18), C. destructans (GC2, GC3, GC9, GC11), C. didymium(GC8,GC21), C. hetronema(GC1), C. obtiusisporum(GC5), Fusarium moniliforme (GF10,GF19), Rhizoctonia solani (GR1,GR2) and Macrophomina phasolina (GM27) in cogon grass infection, caused the ability of all the isolates to infect cogon grass in a percentage ranged 61.56-96.87%. The results also showed that all the isolates showed a significant reduction in shoot and root dry weight compared with the control treatment, the mean shoot and root dry weight in the treatments of all the isolates ranged 0.073-0.947 g/plant and 0.226-1.573 g/plant respectively while it was 1.759g/plant and 2.413g/plant respectively in the control treatment. Results of study the host range of the pathogenic isolates GC1, GC3, GC6 and GC9 which belongs to some Cylindrocarpon species, showed the specificity of the tested fungi to infect cogon grass without effect of the other plant species. Results of evaluating the efficiency of the integration between the biocontrol fungus C. destructans and the herbicide glyphosate in the control of cogon grass showed the superiority of addition the herbicide glyphosate 2% with the biocontrol fungus isolates GC3 simultaneously over the treatments of addition the two control agents individually, the disease severity and the rate of rhizome degradation in their treatment 93.33% and 84.44 respectively, while the disease severity in the treatments of addition the biocontrol fungus and the herbicide glyphosate 2% individually 64.43% and 75.53% respectively, and the rate of rhizome degradation 71.11 and 57.77 respectively. Results also indicated that all the spray treatments with 2% glyphosate individually or with addition of biocontrol fungus in the same time or after 5, 10, 15 and 20 days have been caused high percentage of rhizome buds death. The biocontrol fungus also caused high significant reduction on percentage of germinating rhizomes arising over the soil surface compared with control treatment. The percentage of germination in its treatment was 33.30% while it was 100% in the control treatment.

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