Keywords : Corn


Effect of Spraying Peat Reeds Extract, Irrigation with Saline Water on Growth of Corn (Zea mays L.) and Some Soil Properties

Y. K. AL; Hadithiy; W. B. AL- Kalifawi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 2, Pages 109-121

Pot experiment was conducted at the Faculty of Agriculture / Anbar University during the Fall 2014 season as the study included two factors: the first is the irrigation water and three types: water and river water with salinity 4 dS m-1. In addition, with salinity 6 dS m-1, and the second factor is the organic extracts (Peat reeds) and three levels: 10, 20 g L-1 and it was sprayed three times. The study was conducted using three replications and randomized complete design sectors (RCBD). 2014 to study the effect of salt water and peat reeds use in some recipes the soil and the growth of corn, the results showed the following: -
Plant high and dry weight were decreased when irrigation done with salty water 4.0, 6.0 dS m-1 since they were 33.11 cm and 9.80 g pot-1, respectively, comparing with river water 0.92 dS m-1, which showed 33.94 cm and 10.27 g pot -1 respectively. Increasing organic extracts led to increase in dry weight, since it was 8.74 g in no- spray and increased to 11.21 g in spray level 20 g L-1., plant height increase with in organic extract spray level from 32.72 cm to 34.55 cm. Increasing salinity of irrigation water has led to a decrease in the concentration of each of the elements nitrogen and phosphorus in soil, reaching 63.74 and 1.31 mg. kg-1, respectively, comparing with control 103.71 and 2.14 mg kg-1. Potassium was non- significantly, increase was 32.37 mg kg-1 in the level of 6.0 dS m-1., comparing with irrigation with sweet water 0.92 dS m-1. Which was 24.57 mg kg-1 in the soil after planting Decrease in concentration of nitrogen, phosphorus and potassium in the dry weight of corn in the level of 6.0 dS m-1. It amounted to 10.56 and 1.97 and 32.3 mg.kg-1, respectively, an increase of salinity levels in irrigation water comparing with sweet water 11.12 and 2.76 and 4 0.07 mg kg-1 respectively.
Increase concentration of nitrogen, phosphorus and potassium when sprayed organic extracts (Peat reeds) in the dry weight of the plant maize the highest concentration 12.10, 2.90 and 38.8 mg kg-1, respectively, were obtained from comparing with control 9.45, 1.95 and 32.5 mg kg-1 respectively. Concentration of nitrogen of potassium, phosphorus, Increase in the soil after planting organic levels of organic extracts (Peat reeds) of the level 20 g. L-1, they were 96.39, 1.85 and 33.93 mg kg-1, respectively, comparing with control 69.53, 1.53 and 19.89 mg kg-1 respectively. Values of soil pH were decreased with increases of organic extract levels and irrigation water salinity they decreased from 7.65 to 7.56 and from 7.65 to 7.51 respectively. Values of electrical conductivity in the soil was increase with salinity of irrigation water it become 1.62 dS.m-1. In the level of (6.0 dS m-1). After it was 1.24 dS.m-1. In the irrigation with sweet, water 0.92 dS m-1. Value of electrical conductivity was increase when using organic extract, it decreased from decreased from 1.47 dS m-1. Spray level of 10 g L-1 of the organic extract to 1.33 dS m-1, at the level 20 g L-1.

Estimation several genetic parameters for corn ear characters

F. Y; Baktash; Nadhem; Y.A

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 1, Pages 103-127

A field trails were conducted at the experimental field of Crops Science Department, College of Agriculture, University of Baghdad during spring and fall seasons of 2004 and spring season of 2005. The objective of this research was to evaluate daillel crosses developed from 10 inbred lines , Bk26, Bk43, Bk25, Bk39, Bk3, Bk41, Bk65, Bk16, Bk55 and Bk11 (recommended from last research) and estimate several genetic parameters for corn (Zea mays L) ear characters. Inbred lines propagated and full diallel crosses carried out. Varietal trails were conducted using Latice Design with four replications to evaluate single crosses , their reciprocals and parents in fall season 2004 and spring 2005 .The diallel crosses Bk25xBk55, Bk55xBk26, Bk39xBk3,Bk65xBk55 and reciprocal cross Bk16xBk41 in fall season and Bk16xBk55, Bk3xBk16 and reciprocal crosses Bk39xBk65, Bk65xBk3 in spring season superior in ear length . Several daillel crosses and reciprocals produced plants with higher number /ear and number of grains /ear, in both seasons. The highest number of grains/ear produced from daillel cross Bk26xBk25 and reciprocal Bk39xBk25 in fall season and daillel cross Bk43xBk55, reciprocals Bk3xBk41, Bk3xBk25, in spring season. Several crosses superiored in grain weight. The results showed importance of cytoplasmic effects and significance of general and specific combining ability in all the studied traits. The average degree of dominance more than one for daillel and reciprocal crosses in both seasons. All the studied traits under non-additive gene action.

Diallel crosses and some genetic parameters for corn agronomic characters

Nathem; Y. A; F. Y; Baktash

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 1, Pages 128-154

A field trails were conducted, at the experimental field of Crop Science Department, College of Agriculture, University of Baghdad, during spring and fall seasons of 2004 and spring season of 2005. The objective of this research was to evaluate daillel crosses developed from 10 inbred lines, Bk26, Bk43, Bk25, Bk39, Bk3, Bk41, Bk65, Bk16, Bk55 and Bk11 (recommended from last research) and estimate some genetic parameters for corn ( Zea mays L) agronomic characters. Inbred lines propagated and full diallel crosses carried out. Varietal trails were conducted using Lattice Design, with four replications to evaluate single crosses, their reciprocals and parents in fall season 2004 and spring 2005.The diallel crosses, Bk39xBk3 and reciprocal crosses, Bk55xBk5, Bk39xBk43 in fall season, took up lowest period days to tasseling 50.5, 50.8 and 50.8 days , respectively , while in the spring season the daillel cross Bk43*Bk65and reciprocal Bk65*Bk26took lowest days (59.3 and 52.3 days).The shortest slinking time in fall season (52.3 days) was for daillel cross, Bk3*Bk41and reciprocal Bk43*Bk39, While in spring was 62.3 for daillel, Bk43xBk55 and reciprocal Bk39*Bk25.The daillel Bk41*Bk55 and reciprocal Bk39*Bk25 produced the tallest plants in the first season (218, 210 cm.), in the fall season the tallest plants (212, 197 cm) produced from daillel cross Bk25xBk55 and reciprocal Bk39xBk25, respectively. The plants of daillel cross Bk25xBk65, reciprocal Bk39xBk25 in the first season and daillel Bk25*Bk55, reciprocal Bk55*Bk11 in the second season produced higher ear height. The higher leaf area 0.62 m2produced from the plants of daillel cross Bk26xBk55 in fall season. The results showed importance of cytoplasmic effects and significance of general and specific combining ability in all the studied traits. The average degree of dominance more than one for daillel and reciprocal crosses in both seasons. All the studied traits under non-additive gene action.

Effect of Vapor Grad spraying and irrigation intervals on some growth criterions and yield of corn (Zea mays L.)

Rassmi M. H. Al-Dolaymi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 2, Pages 199-214

A field experiment was carried out during two autumn seasons, of 2013 and 2014 in Ramadi City/AL-Anbar province (first season experiment was conducted in field at north of Ramadi and the second season experiment was conducted in field at east of Ramadi) on corn plant (Zea mays) cv. 5018 .The lay out of the experiment was RCBD under split-split design with three replicates. The experiment included studying effects of two factors: Vapor Gard spraying with three concentrations (0, 1 and 2) ml.l-1 and irrigation periods at (5, 7 and 9) days when depleted available water by 55,65and 75%, and their interaction on growth and yield criterion of corn plant. The results showed that there was a significant effect of vapor Gard concentration W2 (2ml. l-1) in traits of plant height, leaf area, average of grain number per cob, weight of 1000 grains and grain yield, of (213.11 and 205.3) cm, (4969 and 4802) cm2, (720.2 and 715.3) grain.cob-1, (209.11 and 200.3) g, (9.94 and 9.25) t . ha-1, for each seasons, respectively. However, the 5 days irrigation interval was most superior over the other by (203.44 and 205.3) cm, (4528 and 4802) cm2, (689.2 and 679.9) grain.cob-1, (205.42 and 197.4) g, (8.99 and 8.61) t.ha-1. The results indicated that the interaction between W2 concentration level (2ml.l-1) and 5 days irrigation was more effective in increasing studied growth and yield traits.

Effect of zinc foliar nutrition and irrigation periods on some growth parameters and productivity of corn (Zea mays L.)

Saaed A. F. Al-Mehemdi; Rassmi M. H. Al-Dolaymi; Thamer M. B. Al-Dolaymi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 1, Pages 265-279
DOI: 10.32649/ajas.2015.120027

Field experiment was carried out during two autumn seasons of 2013 and 2014 in Ramadi City/AL-Anbar province (first season experiment was applied in field at north of Ramadi and the second season experiment was applied in field at east of Ramadi) on corn plant (Zea mays) cv. 5018. Factorial experiment used according to RCBD design under split plot arrangement with three replicates. The experiment included studying effects of two factors: zinc foliar nutrition at concentrations 0, 40 and 80 mg.l-1 and irrigation periods at 5, 7 and 9 days and their interaction on growth and yield characters of corn plant. Results showed a significant effect of zinc concentration Zn2 (80mg. l-1) in traits of plant height, leaf area, average of grain number per cob, weight of 1000 grain and grains yield, of 227.44 and 219.33 cm, 6031 and 5170 cm2, 736.5 and 750.2 grain.cob-1, 239.87 and 218.06 g, 12.08 and 10.84 ton . ha-1,for each season, respectively. Furthermore, 5 days irrigation was most effective in above traits of 214.44 and 207.89 cm, 5196 and 4745 cm2 , 709.9 and 669.2 grain.cob-1, 219.59 and 207.39 g, 10.75 and 9.58 ton.ha-1. The results indicated that the interaction between Zn2 concentration (80mg.l-1) and 5 days irrigation was more effective in increasing studied growth and yield traits.

Diallel crossing and effects in yield components and grain yield for some corn Genotypes Zea Mays L

Abed. M . Ahmed; Hamdi Jassim Hamadi; Saieed .A . Faiath

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2011, Volume 9, Issue 2, Pages 91-106

Eight inbred line of maize were crossed in a half-diallel mating system . The seeds of parents and F1 crosses were sown in fall and spring season using a randomized complete block design ( R.C.B.D) with four replications . The characters studied were : leaf area / cm2,number of ear/plant ,ear length, number of rows/ear ,number of grain /ear ,300 seed weight and yield of single plant .The parents( H5,R153,ZP607,W13R, JEEZA 5 ,JEEZA 275, SP18 , SP19 ) and these crosses showed a significantly for all characters except number of ear/plant , The parents were generally combined in desirable direction several characters except number of eras/plant for each seasons , ear length for fall season and number of grain / row for spring season .The dominance gene action was more effective than the additive gene action for all characters in the both season .The narrow – sense heritability values were ranged between 2.9% and 25.2%for number of grain / row and leaf area, respectively in the fall season, while in the spring season, ranged between 6% for number of grain /row and 15.4% for number of rows /ear and weight of 300 grain ( gm ) . The broad sense of heritability values were ranged between 72.2% and 95.3% for ear length and yield of single plant for the fall season, respectively While in the spring season they ranged between 73.9% and 97.3% for leaf area and yield of single plant , respectively .The average degree of dominance was higher than one for all characters . which revealed over dominance .

Effect of Magnetic Conditioning of Saline Water Characteristics on corn plants growth (Zea mays L.) and up take of Nitrogen, Phosphorus and Potassium

Bushra Mahmood

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 2, Pages 30-38

A biological Pots experiment was conducted in lath house of soil and water sci.Dept. using silty clay loam Typic Torrifluvent soil collected form Agriculture College fields. The soil was fertilized by 240 kg N.ha-1 as Urea fertilizer ,75 kg P.ha-1 as super phosphate and 120 kg K.ha-1 as Potassium sulphate fertilize. Corn seeds were planted in spring 2007 irrigated by tap water with electrical conductivity of 0.4 dS.m-1 and drainage saline water 7.4 ds.m-1 with and without magnetic . 10 Weeks after planting , plants were harvested, hights and dry weight of shoots were measured also total uptake of N,P and K nutrients were measured .
The results of this experiment showed that Corn Plants hight ,dry weights ,total uptake of N,P and K nutrients were significantly decreased when drainage saline water used as campared with tap water with decreament 10.8 ,28.9 ,17.7 ,22.7 ,17.8 % of these characters respectively. On other hand magnetic water significantly increased all studied characters as compared with non-magnetic. The increase were 17.7 ,34.6 ,23.8 ,28.4 ,21.9 % for plant hight , dry matter weight ,total uptake of N ,P and K nutrients respectively. The results also indicated that there was a significant interaction between water quality and magnetic water , The highst values were obtined with magnetic tap water treatment with no significant differences between magnetic saline drainage water and non-magnetic tap water.

Effect of phosphate fertilizer in the ratio in percentage of Infection on corn Sesamia cretica Led. And relationship to yield production

Ali F. Hassin; Naser M. Naser; Hussam F. Alawadi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 2, Pages 117-123

Experiment was made in AL- Qadisiyah province on maize during the autumn season 2007, to know the impact of four levels of phosphate fertilizer (zero, 160, 200, 240 kg P2O5/ h) and two batches.First add all the amount of phosphate fertilizer at one time when agriculture, and the second was added in two waves, when agriculture first and the second after (45 days) from the first installment. Used in the experiment design sectors indiscriminate full R.C.B.D. Used the seeds of Class of (IPA 3003) parents of hybrid maize. Results showed that the level fertilizer 240 kg P2O5/ ha in reducing the incidence of insect after (8, 10, 12 weeks) and at harvest amounted to (2.34, 4.00, 7.86, 15.26)%, respectively, compared to the treatment of comparison and level fertilizer 160 kg P2O5/ h which gave the highest rate of incidence of this insect, also gave the same level fertilizer increase in the sum total of the plant and the winning 5,648 and 6,141 and 7,288 and 8,056 tons / h respectively in the above levels of fertilizer.

The Genetic Analysis of Combining Ability, Gene Action and Estimation of Some Genetic Parameters for Corn

Abdul-Majyd A. Al-Rawy; Abed M. Al-Jumaily; Anwer A. Al-Ahmed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 1, Pages 82-95

A field trial was carried out on the Field Crops Research Station of State board of Agricultural Research Abu-Ghraib. Five inbred lines of maize were used in this study using full diallel cross in spring season in 2008 to produce twenty F1 crosses. Seed crosses were grown in a randomized complete block design with three replicates in fall season 2008. The objective of this study was to identify and select superior maize inbred lines based on their performance as well as to evaluate their single-cropss hybrid performance based on results of analysis of combining ability, gene action and estimation of some genetic parameters using the approach of Griffing (1956b) the third method with fixed model. The results of statistical analysis showed that there were highly significant differences among crosses for all the studied traits except the number of ears/ plant was not significant. Results of genetic analysis showed that the MSgca, MSsca, and MSrca, were high significant in all studied characters except for number of rows/ ear in (GCA) and for days to 50% silking and number of rows/ ear were not significant added for ear length was significant in (RCA). Indicating the importance of both additive and non additive gene action in the control of these characters. The inbred line AGR11 was found as the best general combiner for ear length (0.813), rows number (0.200), number of grains/ row(2.36) and grains yield/ plant(9.58). The best cross (AGR3 x AGR21) and (AGR11 x AGR21). These crosses showed good positive (SCA) effects along with better mean performance (40.9, 196.8) and (41.9, 171.8) respectively for grain yield per plant, and most of the traits. The ratio of (δ²gca) to the (δ²sca) and (δ²rca) was less than 1.0 in all studied characters, except for ear length, number of grains / row and grains yield which was more than 1.0 in reciprocal crosses. The values of dominance genetic variance were more than that additive genetic variance for all characters in diallel crosses, while the values of additive genetic variance were more than that dominance genetic variance except for the ear height, leaf area and number of rows per ear for all charscters in reciprocal crosses. This reflects the exceeded one for the value of average dominance degree for all studied characters in both diallel and reciprocal crosses except for days to 50% silking, ear length, number of grains/ row and grains yield/ plant in reciprocal crosses which was less than 1.0. As for broad sense heritability it was high for all studied characters in both diallel and reciprocal crosses except for days to 50% silking, number of rows/ ear and grains yield/ plant which were low in reciprocal crosses, but narrow sense heritability was low for all studied characters in diallel crosses while it was heigh for most of the traits in reciprocal crosses. The results indicate that some inbred lines could be used in a breeding program to develop new versions of high yield per plant and SCA to produce better grain yield hybrids, and most studied traits were under over dominance gene action. This showed that developing elite hybrids were the best method for improving maize grain yield.

Cost/ Benefit analysis of dusts seed dresing on three genotypes of corn (Zea mays L.) with difference resistance to common smut disease on corn

Abdulrazzaq Y. Al-Zwobaie

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 1, Pages 276-281

The economic:cost/ benefit analysis of seeds dresing with two fungicides(vitavax and Divideend) with three genotypes of corn Zea mays L.possising difference resistance to common smut disease on corn caused by Ustilago maydis (Shahad highly.IPA5012, moderate and Neelum susceptable), Factorial Experimenta in RCBD design was used. The cost , benefin and the ratio between them was calculated for ech fungicide treatment. Results midcated economic benefic for all fungicides even with highly resistant caltivar (2100dha)whit vitavax (2400dha).Result were also indicated that the benefit of the first fungecids was(4513 D) compard to (2726 D)for the second. The ratio of susceptible to resistance genotype treated with fungicide was very switable 1:3.5 which indicate that the first fungecides was very switable for seed dressing for all genotype tested.

Effect Of Irrigation Depth and Foliar Application of Zinc Upon Some Growth Indicators Of Corn (zea mays L.)

Naif. M. Fayadh; Fawzy M. Ali; M. Al-Kubiasi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 1, Pages 11-19

Afield experiment had been carried out in autumn -2006 to study the effect of irrigation depth and foliar nutrition application of Zinc on some growth for the spicies Zea mays L.var IPA 5012. A factorial experiment was applied according to Randomized Complete Block Design with three replicates .The experiment included two treatments namely; irrigation (I) with two levels (I1 and I2). The I1 treatment received enough irrigation in germination and maturing stags which equal (130 and 150) mm respectively, but received deficient irrigation in vegetation and flowering stags which equal (180 and 140) mm respectively. The I2 treatment received deficient irrigation in germination and maturing stags which equal (65 and 95) mm respectively, but received enough irrigation in vegetation and flowering stags which equal (225 and 215) mm rspectively. The second treatment namely Zinc spraying (Zn) which contents three levels (Zn0, Zn1 and Zn2). The Zn0 treatment, is the control (sprayed with water only). The Zn1 treatment in which the plant sprayed three times with 50 mg Zn/ L, and the Zn2 in which plant sprayed three times with 100 mg Zinc/ L.
The results showed: that I2 treatment gave the highest growth indicators particularly net weight seed/ ear, weight of one seed and wet weight of plant which shows (15.6, 4 and 12)% increament continuously comparing with I1 treatment. While The Zn1 treatment gave the highest level for net weight seed/ ear, wet weight of plant ,number of seeds in one line and leaf width. The increasing percent were (6.7, 2.3), (16.9, 10.8), (6.7, 1.5), (5.9, 5.0)% in comparesing with Zn0 and Zn2 treatments, continuously. Also Zn2 treatment showed a significant increament in ear length. The increasing percent was 6.8% in comparing with Zn0. I2Zn1 achieved a significant increament in the average of net weight seeds/ ear, and weight of one seed. Also interaction of Zn1 with I1 and I2 showed a significant increament in the average of seeds number in one line and leaf width.

Role of whey in growth of Corn and microbial population

B. A. Abdel-Hameed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2009, Volume 7, Issue 1, Pages 47-56

بهدف التخلص من الشرش کمادة ملوثة للبیئة واستغلاله فی العملیات الزراعیة فقد اضیف بأربعة مستویات هی 0 و10 و20 و30% منه خلطا مع میاه الری وبالتداخل مع ثلاثة مستویات من الماده العضویه وهی 0 و2 و4%. بعد خلط المادة العضویة زرع محصول الذرة الصفراء zea mays صنف اباء – 10 فی اصص سعة 10 کغم تربة. استمرت عملیة الری بالمیاه المخلوطة بالشرش الى نهایة الموسم. بعد الحصاد اخذت المؤشرات التالیة ؛ معدل طول النبات ومعدل الوزن الجاف للمجموع الخضری والجذری واعداد البکتریا والفطریات فی التربة. اظهرت النتائج ان لأضافه الشرش خلطا مع میاه الری تاثیر معنوی فی معدل طول النبات ومعدل الوزن الجاف للنمو الخضری والوزن الجاف للجذور اذ سجلت هذه المعاییر مع زیادة مستوى خلط الشرش الى 20% و بقیم مقدارها 119.77 سم . نبات-1 و48.27 غم . نبات-1 و14.72 غم . نبات-1 للمؤشرات اعلاه على التوالی بالمقارنة مع قیمها فی معاملة المقارنة والتی کانت 118.2 و47.2 و 14 على التوالی أیضا". کما حصلت نفس الزیادة فی اعداد البکتریا والفطریات مع زیادة مستوى اضافة الشرش الى 20% اذ اعطت کثافة سکانیة بمقدار 1.6*107 سبور.غم تربة-1 جافة و1.35 *106 CFU على التوالی کما اشارت النتائج الى ان للمادة العضویه تاثیر معنوی فی زیادة اطوال النبات والوزن الجاف للقش والجذور والتی اعطت القیم 115 سم. نبات-1 و 47.72غم. نبات-1 و15.56 غم. نبات-1 على التوالی بالمقارنة مع معاملة المقارنة والتی کانت 113 و43.3 و14 على التوالی أیضا". اما افضل معاملة تداخل بین الشرش والمادة العضویة فکانت اضافة الشرش بمستوى 10% ومادة عضویة 2%.

The soil compaction effect on some nutrients availability, Uptake and growth of Corn

A. H. Al-Bayat; B. R. Serhed; M. A. Al-Ani; M. R. Mohamad

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 2, Pages 32-45

This experiment was conducted at the wood shader according to complete randomized design by using clay loam texture soil columns with 15 cm diameter and 40 cm height. which have been accomplished by compacted the soil after wetning it to the optimum water coutent for compaction by procter equipment to reached the bulk density levels 1.25, 1.30, 1.35, 1.40, 1.45, 1.50, 1.55 and 1.60 Meg. m-3 After addition of nitrogen, phosphorus, potassium and micro nutrients, Iron, manganise, Zinc and copper with levels 240 kg N, 40 kg P, 40 kg K per hectar and (50 mg Fe, 2.5 mg Mn, 2.5 mg Zn and 1.0 mg Cu) per kilo of soil.
Corn seedes (Behoth 106) variety was sown and after first week one plant was left in every experimental unit (after 60 days from planting) the aerial parts were harvested and roots system were separated from the soil samples were taking from plants rizosphere zone. palnt height and dry weight for both aerial and root parts were measured, so that plant samples were digested, also rizosphere soil for estimated its contents from nutrients N, P, K, Fe, Mn and Cu to calculated the total uptake.
The results showed there is a second degree relation ship between compaction levels and studied growth parameters. also incneasing the compaction level negatively effecte on a vailability of N and Cu in the soil, while there were an increasing in the P, K, Fe, Mn and Zn availability.
The increasing in the Zn availability was due to the increase in of phosphorus availbality in the soil.
The study of plants total uptake after 60 days from planting were showed significant increase in the uptake of N, P, K, Fe, Mn and Cu with increasing bulk density from 1.25 to 1.35 Meg. m-3 there was gradnal decrease down to lowest value at density 1.60 Meg. m-3 with the second degree relarionship.

RELATIONSHIP BETWEEN VIABILITY AND VIGOR SEED TESTS AND FIELD EMERGENCE OF CORN (Zea mays L.) BY USING REGRESSION ANALYSIS.

J. H. Hamza; K. A. Jaddoa; A. G. Ali

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 1, Pages 108-118

Viability and vigor seed tests and field emergence were conducted for four synthetically varieties of corn (Zea mays L.). Its bohooth 106, 5012, talar, and rabiee. The objective of this study was to predict field emergence via viability and vigor seed tests in addition to know which one of laboratory tests was closer to predict field emergence. Regression analysis was conducted on the basis of independent variable was viability and vigor seed tests and dependent variable was field emergence. Also data of germination methods under study in addition to field emergence were analyzed according to a randomized complete block design (one way) with four replications. For rabiee cv. the regression analysis showed a significant positive relationship between field emergence and accelerated aging test, electrical conductivity test, and seedling dry weight. This indicates to the ability of predicting field emergence via these tests. The closer relationship was with accelerated aging test. However other relationships were not significant for rabiee cv. Also for other three cvs., where all the relationships between studied laboratory tests and field emergence were not significant. Analysis of variance for studied germination methods showed significant difference between field emergence and each one of laboratory germination methods for all studied cvs., while it was not significant with final count at standard germination test for talar, and rabiee cvs. We could conclude that the standard germination test could express seed quality and its potential performance at field with a better reality compare with other studied laboratory tests with respect to talar, and rabiee cvs. Results of analysis of variance were inconsistent with the results of regression analysis and this lead to the conclusion that the obtaining results might differ according to the differences in the statistic of processes used for the same data.

The combiond Effect of Potassium fertilizer and some chemical insecticides against Corn stem Borer tow local Corn cultivars Sesamia cretica Led. (Lepidoptera : Phalaenidae)

B. H. A. Al-Solagh

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 316-329

Field studies were conducted experimental field in the college of agriculture Al-Anbar university to evaluate the combined effect of potassium fertilizer and some chemical insecticides against corn stem borer during spring and fall growing season of 2002.
The test included for (0, 20, 40, 60) Kg K / hac two insecticides (cruiser used as seed treatment at rate of 1400 ml/ 100 kg seeds and diazinon 60EC as spring of rate of 1.5 ml/ L) and two cultivars of corn (Buhooth 106, IPA 5012). Results can be summarized as follows:
IPA 5012 cultivars showed had caused a lowest percentage of infestation.
Potassium fertilizer had significant effect on reducing percentage of infestation when used at rate of 60 Kg K.hac-1.
The use of insecticide cruiser caused significant reduction infestation.
However the better results were optimum of when the combined effect of potassium and cruiser on the cultivars, IPA 5012 the peasbility of using there element in applied management system as corn borer was discussed.

EFFECT OF IRRIGATION AND PLANT DENSITY ON GRAIN YIELD OF CORN (Zea mays.L)

T. M. Al-saad

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 149-154

Field study was conducted at AL-raad project / Abu-Ghraib during the seasons of 1999-2000 to select the best relationship between plant densities and irrigation regimes which affect grain yield.
Plant densities of 50000,70000 and 90000 plantha with irrigation regimes of 60,80 and 100% of maximum evapotrans piration , were applied in the field. Results of the experiment revealed that different levels of maximum evapotranspiration were non significant of grain yield. While plant density showed significant differences in grain yield especially between high and low density. This study also showed that the proper combined levels of 50000p/ha density with irrigation of 60% from maximum evapotranspiration gave 6012 kg/ha.

The role of Phosphogypsum applied to soil partly affected with salinity on yield and growth of corn (zea mays)

Joboory; W. M. AL

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 10-15

This trial was cared out in plastic pots to investigate the role of Phosphogypsum applied to soil partly affected with salinity on yield and growth of corn.
The Phosphogypsum was added to soil partly salinity with the following percentage: 0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5%. The pots were arranged in (CRD) with three replicate.
The result revealed that a signification increase plant height and the dry weight of corn with increase in applied Phosphogypsum. In addition signification increases in the available Phosphor in soil after agriculture for all levels except the fourth level. Increase in Phosphor, Sulfate and redaction in Chloride in plant were found with the increase of Phosphogypsum application.

Effect of irrigation frequency and plant distribution on the growth and yield of corn (Zea maiz L.)

A .H . Al-Maeini

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 85-100

A field study was carried out during fall seasons of 2004 and 2005, at Latifya experimental station on a silty clay soil the objective of this study was to know the effects of the increasing the irrigation periods and plant distribution on the growth and yield of corn. Three irrigation treatments (irrigation periods): 5–7 days (standard), 10–14 days (double) and alternating irrigation periods of 5–7 days and 10–14 days as a main plots and three sub treatment of plant distribution were used: 70×30 cm, 45×45 cm and 55×55 cm. The experiment was carried out during the autum fall of 2004 and 2005. Result showed that compared with the standard treatment doubling irrigation period (10–14) days caused average (4–5) days delay in tassling and silking; it also reduced plant height, leaf area. leaf area index and grain yield by 21%, 28%, 32%, and 30% respectively. Although water use efficiency was the same for the two treatments. Alternating irrigation caused a 2 days delay in tassling and a reduction in plant height, leaf area and grain yield of 7%, 11% and 15% respectively with the water use efficiency increased by more than 20%. The study also showed that a reduction in plant density in the sub treatment (55×55 cm) reduces the damage caused by water stress which caused by increasing irrigation period and water use efficiency.

Effect of Space between plants and Nitrogen fertilizer on Growth and Grain yield of Corn

A. Salama

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 143-148

A field trial was conducted at farm of Qaim region silty caly soil to study the effect of space between plants and nitrogen fertilizer on growth and yield in Qaim .The objective of research is to determine the response of corn ( Booheth 106 ) in autumn season of 2005 fertilizer using three levels (80, 160, and 240) kg N/ha and using three spacing between hills (15, 25, and 35) cm, as sup plot. These factors( 3*3 ) were input in split plot design with three replication, seeds were planted at 20 july in rows 0.70 m spacing between. Nitrogen application incrased leaf area. Plant height and yield signifcantaly. So that 25 cm between hills gave the best means of these characteristics and resulted height rate of yield with using 160 and 240 kg N/ha.

The influence of the biological insecticide Agreen and two growth regulators, Cascade and Insegar, on corn stalk borer Sesamia cretica Led. (Phalaenidae: Lepidoptera)

A. A. Ali

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 267-278

Several studies were conducted to investigate the influence of Agreen (Bacillus thuringicasis agypti ) and the growth regulators, Cascade (Flufenoxuron) and Insegar (Fenoxycarb) on some biological aspects of corn stalk borer, Sesamia cretica Led. Results indicated no significant effect of Agreen on egg hatch. However an obvious reduction in hatching percentage was recorded for one day and four days old eggs treated with Cascade and Insegar.Hatching percentages were 64 and 69 % for one day and four days old eggs treated respectively with Cascade .The growth regulator Insegar resulted in 75 and 85 % of egg hatch for the two stages respectively .Results also showed that the susceptibility of first instar larvae was higher than that of the fourth instar larvae. The growth regulator Cascade showed highly influences on treated stages with percent of killing reached 81.5 and 82.1 % for 1st and 4th instar larvae respectively. A continous effects were also recorded on subsequent stages originated from individuals treated with Agreen and growth regulators.These include; delayed larval and pupal development, increased pupae and adults deformations.and reduced adults longevity and females fecundity. However, females originated from larvae treated with the growth regulators failed to lay any egg and died shortly after emergence. Results of this study will hopfully improve the management system for the control of corn stalk borer.

The effect of Interaction between Compaction and agricultural sulfur on Availability and uptake of some nutrients and growth of Corn Plant (Zea mays L.)

A. H. Al-Bayati

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2006, Volume 4, Issue 1, Pages 1-14

This experiment was conduted to study the effect of stress caused by Soil Compaction on Agricultural Sulfur oxidation and their interaction effects on availability and uptake of some Nutrients (N, P, K, Fe, Mn, Zn, Cu) and their relationship on Corn plant growth (Synthetic Var.106).
Agriculture Sulfur was added to the Clay loam soil Classified Typic Torrifluvent at three levels 0, 1, 2, MgS˚. hg1 (S0, S1 and S2) respecrively than it was compacted to following bulk density levels 1.25, 1.35, 1.45, 1.55 Meg/m-3 (B1, B2, B3 and B4) respecrively .
Results indicated significant affect for compaction on the studied growth indexes (plant height, leaf area, Root and Shoot dry matter) also on the uptake of (N, P, K, Fe, Mn, Zn, Cu).The uptake of these nutrients were positively up to 1.35 Meg.m-3 . then it showed negative effect as bulk density level was increased. We showed that addition of the Sulfur significantly increased availability of nutrients and growth indexes when it was addition at level S1 increased up to S2. N, P, K and Cu uptake significantly affected .But Zn, Mn, and Fe uptake were not affected. S2B2 treatment was showed best values for studied indexes. Incompertion to the S0B4 tyreatment which showed lower values.

Effect of dusts fungicides on common smut and characteristics yield for many genotypes of corn (Zea mays L.)

Tarik M. Al-Fahdawi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2006, Volume 4, Issue 1, Pages 109-116

A field experiment was carried out at the research farm, college of Agric. Al-Anbar University, during the autumn season of 2003. The Objective was to determin the effect of fungicides dusts on common smut and sume yield characteristics and yield for five genotypes of corn, Rabia alawal, Almassara, Alssaffa, Shahad and Buhooth 106. It seeds were dusts by fungicides; Carboxin, Dithane M45 and Dividend.


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A split-plot arrangement in R.C.B.D with three replications was used, genotypes were assigned in the main plots, while fungicides in subplots. Fungicides carboxin significant effect had given a lowest infection percentage. While Diathine M45 and Dividend significant difference with Carboxin in row No. / ear. But dividend significant effect had given highest 300 grain weight (gm). At genotypes, Shahad and Assaffa significant difference with infection percentage was lowest then 20% for for both. Alssaffa significant deference with ather genotypes in ear No. / plant, also Buhooth 106 in row No. / ear but wasn’t Significant difference with genotypes Almassara and Rabia alawal, and genotype Almassara yield / plant but wasn’t with Rabia in alawal and Shahed.
Interaction between fungicides Carboxin and genotype Shahad was significant effect in infection percentage.

Effect of dusts by some fungicides on infection percentage of common smut disease and growth characteristics oil percentage for many genotypes of corn (Zea mays L.)

A. Y. Al-Zwobaie; T. M. Al-Fahadawie; S. A. Al-Mahamdie

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2005, Volume 3, Issue 1, Pages 110-117

A field experiment was carried out at the research farm, college of Agric. Al-Anbar University, during the autumn season of 2003. The Objective was to determin the effect of fungicides dusts on common smut disease and some growth characteristics and oil percentage for five genotypes of corn, Rabia alawal, Almassara, Alssaffa, Shahad and Buhooth 106. Seeds were dust by fungicides; Carboxin, Dithane M-45 and Dividend. A split-plot arrangement in R.C.B.D with three replications was used, genotypes were assigned in the main plots, while fungicides in subplots. Fungicides carboxin significant effect had given a lowest infection percentage. And highest oil percentage also Dithan M-45 effect was significant in oil percentage. Significant effects for genotypes in dry weight/h., Buhooth 106 genotype had given highest significant effect but wasn’t significant with Rabia alawal genotype.
In infection percentage, Shahad and Alssaffa genotypes significant difference with other genotypes. Interaction between fungicides carboxin and genotype Shahad was significant effect in infection percentage. Buhooth 106  carboxine treatment and dithane M-45 had highest significant with other treatmants and Rabia alawal dividend. Treatment in dry weight/h. and in interaction alssaffa  diathan M-45 and Alssaffa  control had given highest significant in oil percentage.