About Journal

Mesopotamia journal of Agriculture   was issued for the first time at 1/4/1966 and continued until the year 1982, the journal stopped for three years according to the ministerial order which distributing scientific journals between Iraqi universities , according to scientific field , where University of Salahaddin issued Iraqi Journal of Agricultural Sciences (Zanko), this Journal was the only one in agricultural sciences in Ministry of Higher Education and Scientific Research, Mesopotamia journal of Agriculture was reissued again in 1986 , in 2000 it was adopted as country Journal ,...
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Journal Information

Publisher: University of Mosul

Email:  magrj@uomosul.edu.iq

Editor-in-chief: Saeb Younis Abdul-Rahman

Print ISSN: 1815-316X

Online ISSN: 2224-9796

ECONOMIC ANALYSIS OF GRAPE PRODUCTION FARMS IN SALAH EL-DIN GOVERNORATE FOR THE 2019 PRODUCTIVE SEASON (BALAD DISTRICT AS A MODEL)

ZAWID FATHY AL-Ramathny

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 1-10
DOI: 10.33899/magrj.2021.131238.1140


        The research aimed to study and analyze the productive reality of a sample of 35 grape growers in Balad District- Salah al-Din Governorate for the 2019 agricultural season. For production the study variables included social variables (educational level, experience, age of the farmer) and economic variables (amount of production, cultivated area, chemical and animal sky, control materials and pesticides, number of fruit trees). The results of the analysis showed that most of the economic variables were significant, and the area variable had the greatest impact on production, as the area parameter amounted to 0.380. It was found that about 0.76 of the changes that occur to production are due to economic variables, and the optimum production volume in the farms of the research sample reached (5.01) tons / dunam in When the volume of the most profitable production reached (6.96) tons / dunam, and the results of the analysis showed that the farmers of the research sample are almost close to the stage of economic production, and the study recommended the necessity of using standard and scientific methods and standards when adding production elements and conducting an analysis of the soil to determine its need of nutrients.

STYDY HETEROSIS IN MAIZE

Wiam Yahya Rasheed Al-Shakarchy Asst.Prof; Mohammed Subhi Altaweel

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 11-17
DOI: 10.33899/magrj.2021.130249.1132

Heterosis is a phenomena that have received the attention of ge‎net‎icists and researchers in the field of plant breeding and improvement, in an attempt to find out the reasons for their occurrence, their rules  and how to use them to improve plant characters and increase production. It is a phenomenon resulting from the interaction of ge‎net‎ic materials used by plant breeders in an appropriate manner to produce hybrids. The heterosis is at its peak in the first generation and then decreases in the later generations, as this phenomenon occurs in self and cross -pollinated, but it is more powerful and frequent in cross-pollinated plants, as they contain large ge‎net‎ic   varia‎nce , and that this ge‎net‎ic   mixing is the basis of their strength and vitality. The strength of heterosis is more pronounced when the ge‎net‎ic divergence between the parents involved in the hybridization is increased. In order to ensure obtaining high hybrid vigor, most sources refer to the introduction of parents with divergent ge‎net‎ic   origins 

THE PRODUCTION EFFICIENCY AND DETERMINANTS OF THE CHICKPEA CROP IN NINEVEH GOVERNORATE FOR THE PRODUCTION SEASON 2019

mhasin mahmood Al-jebory

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 18-34
DOI: 10.33899/magrj.2021.132054.1146

         The research aimed to estimate the production efficiency and the optimum economic determinants of chickpea crop farms and a sample of 40 farms in Sheikhan district and for the production season 2019, using the data envelope method and the statistical program DEAP and adopting the production quantity as a reliable variable and (cultivated area, quantity of seeds, human work hours, mechanical work hours, amount of control materials). The results showed that the average production efficiency of the research sample farms amounted to (74.8), with a minimum of (54%) and a maximum of (100%), and six farms achieved full production efficiency, which constituted (15%) of the total farms It was found that there is a discrepancy in the quantities of resources used compared to the quantities of resources that achieved economic efficiency, and this resulted in a surplus in some economic resources, and the variable size of the square occupied the largest proportion. . The researcher recommends improving the efficiency of the farmer through the optimal use of the resources used and the use of fertilizers to maintain the fertility of the agricultural soil. The researcher also recommends the need to follow scientific guidelines and results of research and practical studies, especially in Amounts of seeds used per unit area.

The effect of using Coenzyme Q10 and wheat germ oil on some blood characteristics of stressed rabbits

Eman Abas Al-Samarai; Abdul-Khaliq Ahmed Al-Janabi

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 35-47
DOI: 10.33899/magrj.2021.131859.1142

To determining effect of Coenzyme Q10 (CoQ10)and wheat germ oil(WGO) on hematological , and blood biochemical treats in rabbits buck exposed to oxidative stress, 54 animal aged 4-5 month randomly distributed into six group. Nine animals / group. as following: the first was a productive ration + tap water, the 2nd group consumption normal diet + Water with 0.04%H2O2, G3 and G5: supplemented CoQ10 100 mg/kg fodder without and with H2O2, respectively. Moreover, the G4 and G6: supplied 3 gm. WGO /kg of feed without and with H2O2 in drinking water, respectively. The results showed: No significant difference (P≤0.05) among group in the (RBC), G3 recorded a significant increase in the PCV, corresponding to a significant decrease in the MCV. The sixth group recorded increasing in the hemoglobin concentration, which led to a significant increase in the MCHC. The second treatment recorded decrease total protein, and globulin,. Regarding the lipid profile, there was a significant increase in the level of triglycerides and cholesterol with H2O2. There was a significant decrease in ALT and AST levels for the third and fourth treatments compared with the rest of the oxidative stress treatments. With a significant decrease in glucose concentration, creatinine, urea and cortisol levels.

THE RESPONSE OF SOME FORAGE GRASS CROPS TO NITROGEN FERTILIZER

Salim A. Y. AL- Gazhal

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 48-58
DOI: 10.33899/magrj.2021.130762.1135

The nitrogen fertilizer has a critical role in the plant growth and development processes by which the plant derives nitrogen which is in one content of cells. As a key element in the formation of many compounds whereas the most important are amino acids that compose the protein. Therefore, Nitrogen considers as important for growth and plant development and consequently for the increased outcomes. The Forage grass plants respond well to nitrogen fertilization and collect about half of the nitrogen absorbed by the plant during various stages of plant grains growth. Nitrogen positively affects the photosynthesis rate by increasing the rate of chlorophyll amount in the leaves, as it is the main element in the increase and composition of the dry matter of the plant, the size and capacity of the grin, and the final crops of grains as each ton of grain crops such as maize contain about 16 kg of nitrogen. 

EFFECT OF SPRAYING WITH SOME AGRICULTURAL CHEMICALS ON INDUCING TOMATO PLANT RESISTANCE AGAINST TETRANYCHUS URTICAE (KOCH)

Abdul Aziz A. Mustafa; Nabil M. T. Al Mallah

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 59-76
DOI: 10.33899/magrj.2021.131985.1147

The results of the study of the effect of spraying with some agricultural chemicals on the seasonal activity of T. urticae during the season 2019-2020 showed that the lowest general average of these numbers was when treated with the growth regulator Horm on 93.33 individuals/10 leaves, which differed significantly from all other spraying treatments as well as the comparison treatment (115.12 individuals/ 10 leaves) and that the lowest general average of these numbers was on 26/10 reaching 19.80 individuals/10 leaves, and the local variety was significantly distinguished in achieving the lowest average of these numbers 104.09 individuals/10 leaves compared to the GS variety (132.47 individuals/10 leaves). The spraying treatments varied between them with regard to reducing or increasing the numbers of mites on leaves tomato is the GS variety and treatment with Horm, Fylloton and Grofalex led to a decrease in the averages of these numbers compared to the treatment of the control experiment, while the role of the rest of the treatments (Appetyzer, Acadian, Grofalex + Horm) was negative in this area, as it led to an increase in the sensitivity of these plants to infection. The GS variety was significantly superior in giving the highest content of carbohydrates, phenols and flavonoids, which amounted to 0.67 g, 12.91 mg, 4.35 mg, respectively, compared with the local variety, while the local variety was significantly superior in the leaves content of proteins only (5.12 g) compared with the GS variety.

FACTORS INFLUENCING CHOICE OF COPING STRATEGIES AMONG RURAL FARMERS IN OKUNLAND, KOGI STATE, NIGERIA.

FEMI AWE; Ruth Ibukun Kolade

Mesopotamia Journal of Agriculture, 2021, Volume 49, Issue 4, Pages 77-87
DOI: 10.33899/magrj.2022.131133.1139

This study examined the factors that influenced the choice of coping strategies to climate change among rural farmers in Okun Area of Kogi State, Nigeria. A total of one hundred and fifty copies of questionnaire were randomly administered on the respondents through a multi-stage random sampling technique. But only one hundred and forty-six (146) copies were retrieved and used for the analysis Both descriptive and inferential statistics were used for the analyses. The descriptive statistics used were frequency tables, percentages and mean, while the inferential statistic used was Multinomial Logistic regression. The results indicate that 72.60% of the respondents were male while 27.40% were female. It was discovered that 30.82% of the farmers chose fertilizer application as a measure to cope with the impact of climate change while 11.64% engaged in the planting of cover crops as a measure to cope with the changing climate. The result of the multinomial logistic regression model showed educational status, farming experience, access to credit, access to extension services, farm size, farm and non-farm incomes as well as access to climate information were among the factors that influenced farmers’ choice of coping strategies to climate change at 95% confidence interval.

Study of the anatomical characteristics of fruits and seeds of several species of the genus Bellevalia layper and Ornithogalum L. of the Asparagacea family spread in Iraq

Najat Ameen Sa’eed

Mesopotamia Journal of Agriculture, In Press
DOI: 10.33899/magrj.2022.131771.1141

The study dealt with anatomical characters of 11 plant species Bellevalia chrisii, Bellevalia flexuosa, Bellevalia kurdistanica, Bellevalia longipes, Bellevalia macrobotrys, Bellevalia parva, Bellevalia pycnantha, Bellevalia saviczii, O.brachystachys, O.neurosteyinm, O.pyrenaicum that belong two genera Bellevalia Layper and Ornithogalum L. from Asparagaceae family growing in different area in Iraq. The pericarp consist from three layers, there outer exocarp, middle mesocarp and innter endocarp. The results show the number of lods from each species and there were tailored of the most species ,except the fruit of Bellevalia saviczii was bilobed while the specie O.pyrenaicum fruit was multilobed. Also theanatomical sections of fruits showed the shape of seeds which were different like elongated, ovoid, semi ovoid ,spherical and semi spherical, the measurements shows the Bellevalia chrisii that had most thickness of seeds which was 170 m, While the species Bellevalia pycnantha recorded the lowest thickness of 50 m. and the shape of cells which all were globular, the results also cleared cleared the vessels bands in the mesophyll of fruits.

BLOOD GLUCOSE RESPONSE AND GLYCEMIC INDEX OF DIETS CONTAINING DIFFERENT SOURCES OF CARBOHYDRATE IN HEALTHY RATS

Abdullah M Thannoun

Mesopotamia Journal of Agriculture, 2010, Volume 38, Issue 1, Pages 24-34
DOI: 10.33899/magrj.2010.27737

Blood glucose response and Glycemic Index (GI) of diets containing different sources of carbohydrate including glucose, starch, amylopectin, bread, rice, whole wheat kernels (habbiyah), lentils, check peas, kidney beans, and mixtures of bread or rice with lentils, chick peas or kidney beans for healthy Sprague Dawley rats using glucose as standard were studied. Fifty five normal animals were housed individually to perform this study. Animals were fasted (overnight fasting) for 12 hours and tested for blood glucose at zero time before given in amount of test food containing 0.15 g carbohydrates. Blood glucose was determined after 15, 30, 45, 60, 90 and 120 minutes. Results showed that amylopectin based diet had the highest GI (96) comparing with lowest GI (44) for habbiyah based diet. Results also show that addition of lentils, check pea or kidney beans to the bread resulted in lowering the GI of the final meals from 70 to 46. However, addition of these legumes to the rice base diet did not enough reduce the GI. In conclusion, mixing different sources of carbohydrates might be change the blood glucose response and GI of the original foods.

Evaluation of Faba Bean Genotypes For Yield And Yield Components Using Selection Index

Khalil Hathal Kanoosh; Mohammed Ali Al-Falahy

Mesopotamia Journal of Agriculture, 2020, Volume 48, Issue 1, Pages 12-24
DOI: 10.33899/magrj.2020.126258.1013

The experiment was carried out at the farm at Filed crops Department , College of Agricultural engineering sciences , Duhok University in season 2018-2019 to construed selection index for five faba bean genotypes under different levels of phosphorus fertilizer .The results exhibited that all selection indices include the grain yield gave relatively efficiency , the best selection index were grain yield, number of pods plant-1 and number of seeds pods-1 , so that we can using these characters as criteria’s of selection of faba bean genotypes . Also the results showed that the highest mean selection index was 216.26 for latti kia genotype and significant and difference over all other genotypes .
The heritability broad sense was high for all studied characters and ranged between 0.94 to 0.99 . Regarding to the genetic advance as mean gave high values for first pod height (57.10) , grain yield plant-1 (43.97) , number of main branches plant-1 (33.92) and number of pods plant-1 (31.52) and medium for plant height , days to 75 flowering , number of nodules plant-1 and number of seeds pod-1 . So that we can using these desirable characters to improve the faba bean genotypes .

EFFECT OF SOME AGRICULTURAL TREATMENTS ON GROWTH AND YIELD OF LETTUCE Lactuca sativa L.

Mohammad Talal A. El-Habar; Mohammad Radhi S. Al-Saaberi

Mesopotamia Journal of Agriculture, 2008, Volume 36, Issue 1, Pages 56-66
DOI: 10.33899/magrj.2008.27595

This study was conducted in vegetable farm in the college of Agriculture and Forestry, Mosul University during 2003-2004 growing season to investigate the effects of two sowing dates: the Sept.20th and Oct. 20th, two planting methods of seedling: plots and furrows and with the application of nitrogen fertilizer (Urea 46% N) at rates 0 and 60 Kg/Donnum applied at two doses with three methods of splitting: 1- Half of the total amount was added after two weeks from transplanting and the other half was added at 21 days prior to harvest (30 + 30Kg Urea /Donnum). 2- One third of the total amount added after two weeks from transplanting and the other two thirds was added at 21 days prior to harvest (20 + 40Kg Urea/Donnum). 3- Two thirds of the total amount added two weeks from transplanting and the other one third added at 21 days prior to the harvest (40 + 20Kg Urea/Donnum) on growth, yield and quality of lettuce cv. Paris Island. The experiment consisted of 16 treatments conducted in the field in a factorial experiment within split plot using the Randomized Complete Block Design with three replicates. Results indicated that vegetative growth i.e. leaf number/plant, leaf area/plant, head circumferences and mean weight of marketable head were increased significantly by second sowing date (Nov. 20th), plot planting method as well as by applying nitrogen fertilizer, while the methods of splitting of nitrogen fertilizer had no significant effect on most above mention characters. A similar favorable effect of second sowing date (No.20th), plot planting method and applying nitrogen fertilizer on yield characters was obtained at harvest, However, it has increased significantly folded head percentage, total and marketable yield, whereas the percentage of bolting plants only decreased significantly by second sowing date. The interaction among sowing date, plating methods, nitrogen application gave positive and significant increase in the total and marketable yield.

THE EFFECT OF NITROGEN FERTILIZATION AND SPRAYING OF GIBBERELLIC ACID & ALGAMIX ON THE QUALITY AND QUANTITY ON SOME ACTIVE CONSTITUENTS FROM OIL OF MENTHA PIPERITA & MENTHA SPICATA

Fanar H. Al-Hashemy; Ayad Ch. Al-Daody; Mohammed D. Al-Sawaf

Mesopotamia Journal of Agriculture, 2013, Volume 41, Issue 3, Pages 19-36
DOI: 10.33899/magrj.2013.80144

The current study is carried out the effect of Nitrogen fertilization in levels (0, 46, 92, 138) kg/h and spraying of gibberllic acid at concentration (0, 50, 100) ppm and the Algamix at concentration (1,2) ml/L in percentage ratio for concentration of some active constituents for the oil of two species of Mentha (M. piperita and M. spicata). The result was showed, that the samples of oil was contained the following compounds: (Camphor, Menthone, Menthyl acetate, Menthol and Thymol), using the Gas-liquid Chromatography technique (GLC). It's illustrated that the summer harvest was exceeded to gave the highest concentration of menthone compounds about 11.47% without fertilization (N0) with spraying of algamix at concentration 1 ml/L of M. spicata, as well as thymol compound about 16.69% in fourth level of fertilization 138 kg/h with out spraying of M.spicata too. While, the autumn harvest was exceeded increasing percentage of camphor compound about 0.20% in the fourth level of fertilization 138 kg/h with spraying of algamix at concentration 1ml/L of M. piperita and Menthol compound which was presented 46.50% in the second level of fertilization 46 kg/h without spraying, and also Menthyl acetate at concentration 50.06% in the same level of fertilization of M. piperita with spraying of Algamix at concentration 1ml/L.

EFFECT OF DIFFERENT LEVELS OF NITROGEN FERTILIZER AND ROW SPACING ON THE GROWTH AND YIELD PRODUCTION OF FLAX IN NORTH IRAQ

Ayad. T-Shaker

Mesopotamia Journal of Agriculture, 2012, Volume 40, Issue 2, Pages 224-237
DOI: 10.33899/magrj.2012.36969

The experiment was conducted out during the years of 2007 -2008 and 2008 -2009 at the college farm of Basic Education - Mosul University. The purpose of the experiment was to study the effect of four nitrogen fertilizer levels ( 0 , 30 , 60 and 90 kg N .ha-1) and three row spacing ( 15 , 25 and 35 cm between rows) on yield and yield components of flax. Randomized complete block design ( R.C.B.D ) with three replication was used. The result showed a clear evidence increase in the following characteristics: no. of siligua / plant , no. of seeds / siliqua , wt .of 1000 seeds , Seed and oil yield by using nitrogen fertilizer at the levels 60 kg N .ha-1, whereas no. of fruiting branches / plant and no.of siliqua / plant increased significantly when nitrogen fertilizer added at the level 90 kg N .ha-1.The wt .of 1000 seeds , seed and oil yield were highly increased when flax plants sown at row spacing of 15 cm , but no. of fruiting branches / plant, no. of siligua / plant and no. of seeds / siliqua were increased at row spacing of 35 cm. seeds and oil yield increased significantly when the plant growing at 15 and 25 cm row spacing with 60 kg N .ha-1. The interaction season (2008 -2009) ×row spacing( 15 cm ) × nitrogen fertilizer( 60 kg N .ha-1) gave a highly significant increased in seed yield (1590 kg .ha-1). While oil yield gave a higher ( 612 kg .ha-1) at interaction season( 2007 -2008 ) ×row spacing( 15 cm ) × nitrogen fertilizer( 60 kg N .ha-1) The estimated correlation coefficients (r) were positively and significant correlated between no. of seed capsule with each of seed and oil yield.

BLOOD GLUCOSE RESPONSE AND GLYCEMIC INDEX OF DIETS CONTAINING DIFFERENT SOURCES OF CARBOHYDRATE IN HEALTHY RATS

Abdullah M Thannoun

Mesopotamia Journal of Agriculture, 2010, Volume 38, Issue 1, Pages 24-34
DOI: 10.33899/magrj.2010.27737

Blood glucose response and Glycemic Index (GI) of diets containing different sources of carbohydrate including glucose, starch, amylopectin, bread, rice, whole wheat kernels (habbiyah), lentils, check peas, kidney beans, and mixtures of bread or rice with lentils, chick peas or kidney beans for healthy Sprague Dawley rats using glucose as standard were studied. Fifty five normal animals were housed individually to perform this study. Animals were fasted (overnight fasting) for 12 hours and tested for blood glucose at zero time before given in amount of test food containing 0.15 g carbohydrates. Blood glucose was determined after 15, 30, 45, 60, 90 and 120 minutes. Results showed that amylopectin based diet had the highest GI (96) comparing with lowest GI (44) for habbiyah based diet. Results also show that addition of lentils, check pea or kidney beans to the bread resulted in lowering the GI of the final meals from 70 to 46. However, addition of these legumes to the rice base diet did not enough reduce the GI. In conclusion, mixing different sources of carbohydrates might be change the blood glucose response and GI of the original foods.

Evaluation of Faba Bean Genotypes For Yield And Yield Components Using Selection Index

Khalil Hathal Kanoosh; Mohammed Ali Al-Falahy

Mesopotamia Journal of Agriculture, 2020, Volume 48, Issue 1, Pages 12-24
DOI: 10.33899/magrj.2020.126258.1013

The experiment was carried out at the farm at Filed crops Department , College of Agricultural engineering sciences , Duhok University in season 2018-2019 to construed selection index for five faba bean genotypes under different levels of phosphorus fertilizer .The results exhibited that all selection indices include the grain yield gave relatively efficiency , the best selection index were grain yield, number of pods plant-1 and number of seeds pods-1 , so that we can using these characters as criteria’s of selection of faba bean genotypes . Also the results showed that the highest mean selection index was 216.26 for latti kia genotype and significant and difference over all other genotypes .
The heritability broad sense was high for all studied characters and ranged between 0.94 to 0.99 . Regarding to the genetic advance as mean gave high values for first pod height (57.10) , grain yield plant-1 (43.97) , number of main branches plant-1 (33.92) and number of pods plant-1 (31.52) and medium for plant height , days to 75 flowering , number of nodules plant-1 and number of seeds pod-1 . So that we can using these desirable characters to improve the faba bean genotypes .

EFFECT OF SOME AGRICULTURAL TREATMENTS ON GROWTH AND YIELD OF LETTUCE Lactuca sativa L.

Mohammad Talal A. El-Habar; Mohammad Radhi S. Al-Saaberi

Mesopotamia Journal of Agriculture, 2008, Volume 36, Issue 1, Pages 56-66
DOI: 10.33899/magrj.2008.27595

This study was conducted in vegetable farm in the college of Agriculture and Forestry, Mosul University during 2003-2004 growing season to investigate the effects of two sowing dates: the Sept.20th and Oct. 20th, two planting methods of seedling: plots and furrows and with the application of nitrogen fertilizer (Urea 46% N) at rates 0 and 60 Kg/Donnum applied at two doses with three methods of splitting: 1- Half of the total amount was added after two weeks from transplanting and the other half was added at 21 days prior to harvest (30 + 30Kg Urea /Donnum). 2- One third of the total amount added after two weeks from transplanting and the other two thirds was added at 21 days prior to harvest (20 + 40Kg Urea/Donnum). 3- Two thirds of the total amount added two weeks from transplanting and the other one third added at 21 days prior to the harvest (40 + 20Kg Urea/Donnum) on growth, yield and quality of lettuce cv. Paris Island. The experiment consisted of 16 treatments conducted in the field in a factorial experiment within split plot using the Randomized Complete Block Design with three replicates. Results indicated that vegetative growth i.e. leaf number/plant, leaf area/plant, head circumferences and mean weight of marketable head were increased significantly by second sowing date (Nov. 20th), plot planting method as well as by applying nitrogen fertilizer, while the methods of splitting of nitrogen fertilizer had no significant effect on most above mention characters. A similar favorable effect of second sowing date (No.20th), plot planting method and applying nitrogen fertilizer on yield characters was obtained at harvest, However, it has increased significantly folded head percentage, total and marketable yield, whereas the percentage of bolting plants only decreased significantly by second sowing date. The interaction among sowing date, plating methods, nitrogen application gave positive and significant increase in the total and marketable yield.

THE EFFECT OF NITROGEN FERTILIZATION AND SPRAYING OF GIBBERELLIC ACID & ALGAMIX ON THE QUALITY AND QUANTITY ON SOME ACTIVE CONSTITUENTS FROM OIL OF MENTHA PIPERITA & MENTHA SPICATA

Fanar H. Al-Hashemy; Ayad Ch. Al-Daody; Mohammed D. Al-Sawaf

Mesopotamia Journal of Agriculture, 2013, Volume 41, Issue 3, Pages 19-36
DOI: 10.33899/magrj.2013.80144

The current study is carried out the effect of Nitrogen fertilization in levels (0, 46, 92, 138) kg/h and spraying of gibberllic acid at concentration (0, 50, 100) ppm and the Algamix at concentration (1,2) ml/L in percentage ratio for concentration of some active constituents for the oil of two species of Mentha (M. piperita and M. spicata). The result was showed, that the samples of oil was contained the following compounds: (Camphor, Menthone, Menthyl acetate, Menthol and Thymol), using the Gas-liquid Chromatography technique (GLC). It's illustrated that the summer harvest was exceeded to gave the highest concentration of menthone compounds about 11.47% without fertilization (N0) with spraying of algamix at concentration 1 ml/L of M. spicata, as well as thymol compound about 16.69% in fourth level of fertilization 138 kg/h with out spraying of M.spicata too. While, the autumn harvest was exceeded increasing percentage of camphor compound about 0.20% in the fourth level of fertilization 138 kg/h with spraying of algamix at concentration 1ml/L of M. piperita and Menthol compound which was presented 46.50% in the second level of fertilization 46 kg/h without spraying, and also Menthyl acetate at concentration 50.06% in the same level of fertilization of M. piperita with spraying of Algamix at concentration 1ml/L.

EFFECT OF DIFFERENT LEVELS OF NITROGEN FERTILIZER AND ROW SPACING ON THE GROWTH AND YIELD PRODUCTION OF FLAX IN NORTH IRAQ

Ayad. T-Shaker

Mesopotamia Journal of Agriculture, 2012, Volume 40, Issue 2, Pages 224-237
DOI: 10.33899/magrj.2012.36969

The experiment was conducted out during the years of 2007 -2008 and 2008 -2009 at the college farm of Basic Education - Mosul University. The purpose of the experiment was to study the effect of four nitrogen fertilizer levels ( 0 , 30 , 60 and 90 kg N .ha-1) and three row spacing ( 15 , 25 and 35 cm between rows) on yield and yield components of flax. Randomized complete block design ( R.C.B.D ) with three replication was used. The result showed a clear evidence increase in the following characteristics: no. of siligua / plant , no. of seeds / siliqua , wt .of 1000 seeds , Seed and oil yield by using nitrogen fertilizer at the levels 60 kg N .ha-1, whereas no. of fruiting branches / plant and no.of siliqua / plant increased significantly when nitrogen fertilizer added at the level 90 kg N .ha-1.The wt .of 1000 seeds , seed and oil yield were highly increased when flax plants sown at row spacing of 15 cm , but no. of fruiting branches / plant, no. of siligua / plant and no. of seeds / siliqua were increased at row spacing of 35 cm. seeds and oil yield increased significantly when the plant growing at 15 and 25 cm row spacing with 60 kg N .ha-1. The interaction season (2008 -2009) ×row spacing( 15 cm ) × nitrogen fertilizer( 60 kg N .ha-1) gave a highly significant increased in seed yield (1590 kg .ha-1). While oil yield gave a higher ( 612 kg .ha-1) at interaction season( 2007 -2008 ) ×row spacing( 15 cm ) × nitrogen fertilizer( 60 kg N .ha-1) The estimated correlation coefficients (r) were positively and significant correlated between no. of seed capsule with each of seed and oil yield.