Jalal Hameed Hamza

@uobaghdad.edu.iq

Deputy Dean, College of Agricultural Engineering Sciences
Professor, College of Agricultural Engineering Sciences
University of Baghdad, College of Agricultural Engineering Sciences, Department of Field Crops, Baghdad, Iraq

Jalal Hameed Hamza


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EDUCATION

Ph.D., University of Baghdad
Post-Doctoral, University of Plymouth, UK
Professor, Seed Science & Technology

RESEARCH, TEACHING, or OTHER INTERESTS

Agronomy and Crop Science
28

Scopus Publications

624

Scholar Citations

12

Scholar h-index

15

Scholar i10-index

Scopus Publications

  • Review Article: Iron, Zinc and Boron in Sunflower
    Mushtaq A. Hassan, Jalal H. Hamza
    Iop Conference Series Earth and Environmental Science, 2025
    There is a real problem when adding micro elements to the soil as a result of fixation, sedimentation, washing or toxicity, and thus economic loss. The plant needs micro elements in very small quantities that do not burn the leaves or cause poisoning to plants, including iron, zinc and boron, as they are essential elements for growth and completing the plant’s life cycle, and increase the plant’s resistance to diseases and insects, activate enzymes, and form the chlorophyll molecule, in addition to their role in oxidation and reduction processes and vital processes. The use of fertilizers with their modern technology has made the process of activating seeds or foliar nutrition a matter of interest to researchers as a complementary process to adding fertilizers through the soil. Micronutrients contribute to the manifestation of the potential energy for the growth and yield of sunflowers, including iron, zinc and boron, and their role in improving germination, seedling growth, field establishment, photosynthesis, fertility, crop production and quality, taking into account the method of adding them, whether through soil addition, foliar nutrition or pre-treatment of seeds. The seed priming technique by soaking in solutions of micronutrient elements or adding them by spraying the vegetative part of the plant is characterized by overcoming the effects of the soil on the availability and absorption of these nutrients, and they are efficient and effective methods of plant nutrition. There is a practical and knowledge gap about the low soil stock of these nutrients, and it has become clear that they can be added in a single combination by seed priming or the vegetative growth stage to bridge this gap and enhance their role in regulating the physiological and vital processes that lead to ensuring increased growth, production and quality and obtaining seeds with high vitality and vigor. It can be concluded that the environmental conditions for growing sunflowers in Iraq are suitable and reveal the possibility of expanding its cultivation, especially when avoiding the weakness, delay and heterogeneity of germination resulting from low seed vitality, environmental conditions accompanying crop cultivation, nutritional deficiency and others through managing the mother plant.
  • Effects of Ascorbic, Citric, and Humic Acids on Maize Stem and Leaf Anatomy
    Jazran Jard Kadhum, Jalal Hameed Hamza, Muazaz Azeez Hasan, Maythem Al-Amery, William Serson, et al.
    Baghdad Science Journal, 2025
    درست التغيرات التشريحية في الأنسجة الداخلية للساق والورقة عند معاملة البذور والنبات بالأحماض لتعزيز النمو والتطور في الذرة الصفراء خلال فصلي الربيع لعامي 2019 و2020. تم تطبيق تصميم القطاعات الكاملة المعشاة بترتيب الالواح المنشقة بثلاثة مكررات. تضمنت الالواح الرئيسة معاملات التغذية الورقية (حامض الأسكوربيك (AA) وحامض الستريك (CA) بتركيز 100 ملغم لتر-1، وكذلك حامض الهيوميك (HA) بتركيز 1 مل لتر -1. تم استخدام الماء المقطر كمعاملة مقارنة. وتضمنت الالواح الثانوية معاملات نقع البذور بنفس المعاملات. كشفت نتائج تحليل المقطع العرضي للساق وجود اختلافات في حجم الحزم الوعائية بين المعاملات المختلفة بالمقارنة مع معاملة المقارنة، وأن التغذية الورقية باستخدام CA أظهرت نتائج متفوقة في كلا الموسمين. كما تفوقت البذور المنقوعة في CA و HA على المعاملات الاخرى. كان هناك تداخل معنوي بين التغذية الورقية بالـ CA ونقع البذور بالماء المقطر في عام 2019، أما في عام 2020 فتفوقت معاملة التداخل بين التغذية الورقية بالـ CA ونقع البذور بالـ HA على بقية المعاملات. ومن المهم أن نلاحظ أن المعاملات كان لها تأثير محدود على بشرة أوراق النبات، مع ملاحظة آثار طفيفة فقط. على سبيل المثال، تسببت المعاملات بالـ AA و CA في حدوث بعض التشوه في أشكال بعض الثغور في البشرة العلوية عند مقارنتها بمعاملة المقارنة. أدت المعاملات باستخدام الـ AA و HA إلى زيادة في حجم خلايا البشرة العادية، مع جدران خلايا أكثر استقامة، بينما في معاملة المقارنة، كانت جدران الخلايا متموجة فضلاً عن ذلك كان هناك زيادة وتوسع في حجم خلايا الفلين والسيليكا في النباتات المعاملة. تسهم هذه الدراسة في فهم التغيرات التشريحية التي تحدث في الأوراق والسيقان خلال فترات الإجهاد في موسم نمو الذرة الصفراء، وتسلط الضوء على التأثيرات المحتملة للمعاملات الحامضية على وظائف النبات.
  • Sustainable approach for seed stimulating and sowing date to enhance field emergence and growth of sorghum (Sorghum bicolor L. Moench)
    Azhar Hadi Msheewah Hamd, Jalal Hameed Hamza
    Iop Conference Series Earth and Environmental Science, 2024
    Sorghum cultivation is often accompanied by low field emergence rates and weak seedlings, which may be due to genetic or environmental stress. A factorial experiment was conducted in the spring and fall seasons of 2022 using a randomized complete block design with split-plot arrangement and four replications. Planting dates (spring season: Feb. 15th, Mar. 1st, 15th, and Apr. 1st, 15th; fall season: Jun. 15th, Jul. 1st, 15th, and Aug. 1st, 15th) were allocated to the main plots. Seeds stimulation treatments (35% banana peel extract + 100 mg L−1 citric acid and distilled water soaking treatment only) were allocated to the subplots. The interaction treatment (banana peel extract + citric acid) with the planting date of April 15 showed the highest field emergence (74.2%), 75% flowering (86.0 day), plant height (163.9 cm), and days to physiological and complete maturity (111.0 and 131.0 day), respectively. The banana peel extract + citric acid soaking treatment with the planting date of July 1st showed the highest field emergence (91.3%), plant height (185.1 cm), leaf area index (7.6), and dry weight per plant (398.8 g). It can be concluded that the seeds primed with banana peel extract + citric acid before planting improved growth characteristics and could be a solution to environmental challenges, which also promote the concept of sustainable agriculture. It can be recommended seeds soaking with a combination of banana peel extract and citric acid to enhance emergence and growth when planting in April 15th for the spring season and July 1st for the fall season.
  • Sustainable practices impact and planting date on yield of sorghum (Sorghum bicolor L. Moench)
    Azhar Hadi Msheewah Hamd, Jalal Hameed Hamza
    Iop Conference Series Earth and Environmental Science, 2024
    Environmental stress affects the yield of sorghum. This impact can be reduced by seed stimulation technique and determining the appropriate planting date. An experiment was conducted in the spring and fall seasons of 2022. Randomized complete block design with split-plot arrangement in four replications was used. Planting dates (spring season: February 15th, March 1st, 15th, April 1st, 15th; fall season: June 15th, July 1st, 15th, August 1st, 15th) were assigned to the main plots. Seed stimulation treatments (banana peel extract 35% + citric acid 100 mg L−1 and soaking in distilled water only) were applied to the subplots. The interaction treatment of soaking with banana peel extract + citric acid and the planting date of April 15th showed superiority in traits of head grain number (1743) and total grain yield (6.135 tons ha−1) during the spring season. Seed stimulation treatment with banana peel extract + citric acid on July 1st planting date outperformed in traits of plant dry weight (398.8 g), head grain number (4582), total grain yield (10.82 tons ha−1), and biological yield (67.8 tons ha−1) during the fall season. It can be concluded that seed stimulation with banana peel extract + citric acid improved yield characteristics. Early planting date in the spring season (February 15th, March 1st, or March 15th) or the delay in the fall season (August 1st or August 15th) resulted in less efficient plant performance. This is closely related to the nature of the climatic conditions accompanying crop growth from planting to harvesting. Also, using of agricultural applications related to the use of natural materials could helping hand sustainable agriculture. It can be recommended to soak seeds with banana peel extract + citric acid and adopt the planting date of April 15th for the spring season and July 1st for the fall season to enhance grain yield.
  • Effect of potassium nitrate, licorice extract and planting date on field emergence and growth of maize (Zea mays L.) in spring season
    Maryam Mohsen Khudhair, Jalal Hameed Hamza
    Iop Conference Series Earth and Environmental Science, 2024
    Low temperature and high relative humidity in the spring season led to decrease of field emergence ratio and growth in maize. Planting dates and seeds stimulation can be appropriate fix. Field experiment was conducted in the two spring seasons of 2022 and 2023. Randomize complete block design with split-plot arrangement and four replications was used. Planting date treatments (February 15th, March 1st and 15th and April 1st, 15th) were placed in main plots. Seeds stimulation treatments (potassium nitrate 6 mg L−1 + licorice extract 6 g L−1 as well as treatment of soaking with distilled water only) were placed in subplots. Seeds stimulation (potassium nitrate+licorice extract) or planting date of February 15th were superior at traits of field emergence ratio, days to 75% tassel and silk, days to physiological and full maturity, leaf area index, plant dry weight and crop growth rate in both seasons. Interaction treatment of stimulation (potassium nitrate+licorice extract) and planting date of February 15th excelled at traits above (86.2 and 86.9%), (87.0 and 86.0 day), (91.2 and 91.0 day), (113.5 and 110.0 day), and (113.5 and 110.0 day), respectively. It can be concluded that seed stimulation contributes to enhancing plant growth in adverse conditions in the spring season by increasing the field emergence ratio and plant growth rate over a wide range of environmental conditions. Determining the appropriate planting date contributes to utilizing the prevailing environmental conditions and raising the efficiency of metabolic processes in increasing plant dry weight. Also, using natural materials to stimulate seeds to withstand adverse conditions, which boosts the concept of sustainable agriculture. It can be recommended soaking the seeds with potassium nitrate+licorice extract when planting in the spring season.
  • EFFECT OF CULTIVARS AND HARVEST DATES ON SOME TRAITS OF YIELD IN RICE
    M. K. MohammadAli, J. H. Hamza, A. S. Ahmed
    Iraqi Journal of Agricultural Sciences, 2024
    A field experiment was carried out at Rice Researches Station in Mashkhab, Najaf in 2020 and 2021 seasons to study the effect of cultivars and harvest date on some traits of rice yield. Randomized complete block design was applied within split-plot with four replications. Five cultivars of rice (Amber 33, Yasmin, Dijlah, Amber-albaraka and Furat 1) were distributed in the main plots and five harvest dates (harvest at physiological maturity and harvest after 7, 14, 21 and 28 days of physiological maturity) in the sub-plots. The results showed significant difference among cultivars, and superiority cultivars of Dijlah, Furat 1 and Yasmin in recording the highest yield due to its superiority in number of grains per panicle or weight of grain. It can be concluded that traits of grain number in panicle and weight of 1000-grain were among the most influential traits in determining the grain yield, and date of harvest plays an active role in determining the traits of yield. Third harvest date was the best in grain yield, and early harvest before that date would cause loss of yield for all cultivars due to the high grain moisture, and delay after that date would cause a loss of yield as a result of shattering ratio of grain, in addition to difference of cultivars in recording shattering ratio according to harvest date. It can be recommended planting cultivars of Dijlah, Furat 1 and Yasmin, as they achieved the highest yield, and considering the harvest date 14 days after physiological maturity the best date to obtain the highest grain yield.
  • PLANTING OF STIMULATED CORN SEEDS AT DIFFERENT DATES IN SPRING SEASONS
    M. M. Khudhair Jawad, J. H. Hamza, H. Z. Rihan Jawad
    Iraqi Journal of Agricultural Sciences, 2024
    This study was aimed to investigate the appropriate planting date and tolerance to adverse growing conditions in the spring season through seeds stimulation technology. A field experiment was carried out in the spring seasons of 2022 and 2023 according to a randomized complete block design in a split-plot arrangement with four replications. The main factor is planting dates (February 15th, March 1st and 15th, and April 1st and 15th). The secondary factor is seeds stimulation (potassium nitrate 6 mg L-1 + licorice extract 6 g L-1, as well as soaking with distilled water only). The stimulated seeds (potassium nitrate + licorice extract) and the planting date of February 15th were superior in traits of fertility ratio, number of grains per ear, weight of 300 grains, total grains yield, biological yield, and harvest index in both seasons (2022 and 2023). The stimulated seeds (potassium nitrate + licorice extract), planted on February 15th, excelled in the traits above (95.6 and 97.7%), (640.7 and 816.9 grain ear-1), (76.19 and 82.69 g), (7.2 and 7.8 ton ha-1), (17.5 and 18.9 ton ha-1) and (41.5 and 41.2%) in both seasons, respectively. It can be concluded that seeds stimulation improved the yield and its components of corn crop under a wide range of environmental conditions, and that planting the stimulated seeds on February 15th contributed to take advantage of the prevailing environmental conditions and regulating the relationship between source efficiency and sink capacity to obtain the highest grain yield. It can be recommended that soaking the seeds with potassium nitrate 6 mg L-1 + licorice extract 6 g L-1 together when planting in mid-February in the spring season to increase grains yield.
  • Seedling growth of primed seed under drought stress in sorghum
    Mohammad Omar Shihab, Jalal Hameed Hamza, William Serson, Andre Amakobo Diatta, Martin Battaglia, et al.
    Baghdad Science Journal, 2024
    يعد إجهاد الجفاف عاملاً محدداً خلال مراحل النمو المبكرة للذرة البيضاء. أجريت التجربة تحت الظروف الحقلية خلال العروتين الخريفية 2017 و 2018 في كلية علوم الهندسة الزراعية جامعة بغداد. كان الهدف هو تحسين نمو شتلات الذرة البيضاء وخواصها الكيميائية لتحمل إجهاد الجفاف. تمت دراسة ثلاث متغيرات: العامل الأول هو الأصناف (انقاذ، رابح، وبحوث70). والعامل الثاني هو تنشيط البذور (بذور منشطة وغير منشطة). تم تتنشيط البذور عن طريق النقع لمدة 12 ساعة في محلول يحتوي على 300 ملغم لتر-1 من أحماض الجبريليك (GA3) + 70 ملغم لتر-1 من الساليسيليك (SA). والعامل الثالث هو فترات الري (الري كل 2، 4، و 6 أيام) بكميات محسوبة لإيصال المحتوى الرطوبي إلى السعة الحقلية (100%) عند كل رية.. تم استخدام تصميم القطاعات الكاملة المعشاة بأربعة مكررات. أظهرت النتائج تباين الأصناف في قدرتها على تحمل إجهاد الجفاف، كما أدى تنشيط البذور إلى تحسين أدائها لتحمل إجهاد الجفاف مقارنة بالبذور غير المنشطة في كلا العروتين وذلك بإعطاء أعلى قيم لارتفاع النبات والمساحة الورقية ووزن البادرات الجافة ومحتوى الكلوروفيل والكربوهيدرات والبرولين في الأوراق. ويزداد متوسط الصفات المدروسة مع تقليل فترات الري، باستثناء محتوى البرولين في الأوراق.، والذي يزداد مع زيادة فترات الري. وكان التداخل بين معاملات التنشيط وفترات الري معنوياً في معظم الصفات المدروسة. يمكن أن نستنتج أن التنشيط أدى إلى تحسين أداء البذور في تحمل إجهاد الجفاف مقارنة بالبذور غير المنشطة.
  • Effect of Stimulate of Sorghum Seeds with Banana Peel Extract and Citric Acid on Seeds Viability and Vigour
    Azhar Hadi Msheewah Hamd, Jalal Hameed Hamza
    Iop Conference Series Earth and Environmental Science, 2023
    Sorghum seeds suffer from a low germination ratio, so a factorial experiment was carried out in the Seed Technology Laboratory, Department of Field Crops, College of Agricultural Engineering Sciences, University of Baghdad during 2022 according to a Completely Randomized Design with four replications to study the effect of stimulating seeds with aqueous extract of banana peels with a concentration of (0, 15, 25 and 35%) and citric acid at concentrations (0, 50, 100 and 200 mg L-1) on viability and vigour of seed properties. Seeds that soaked with banana peel extract at a concentration of 25% outperformed in first count (79.8%), final count (85.0%), radicle length (13.2 cm), plumule length (11.6 cm), and seedling vigour index (2109), noting that they didn’t differ significantly with a concentration of 35%. Concentration of 35% outperformed in seedling dry weight (0.015 mg), cold test (46.2%) and accelerated aging (65.0%). Citric acid at a concentration of 200 mg L-1 was superior at the first count (84.3%), final count (87.5%), radicle length (13.9 cm), plumule length (11.5 cm), seedling dry weight (0.014 mg), and seedling vigour index (2227). Concentration of 35% + 100 mg L-1 of banana peel extract and citric acid was significantly superior at final count (94.0%), radicle length (15.8 cm), plumule length (13.6 cm), seedling dry weight (0.017 mg), seedling vigour index (2761), accelerated ageing (75.0%), It can be concluded that banana peel extract is rich with nutrients and mineral elements that stimulate germination and seedling growth, and that citric acid provides an appropriate pH that increases the activity of the enzymes responsible for germination process, so it can be recommended that using a concentration of 35% + 100 mg L-1 of the aqueous extract of banana peels and citric acid together to enhance germination in sorghum.
  • Effect of Stimulating Maize Seeds with Potassium Nitrate and Licorice Extract on the Seed Viability and Vigor
    M. M. KHudhair, J. H. Hamza
    Iop Conference Series Earth and Environmental Science, 2023
    Germination and field emergence are delayed and their duration is prolonged due to the declining soil temperature during the spring season, which is reflected in the subsequent stages of crop growth, therefore, this study aimed to improve germination. Under a wide range of environmental conditions, a laboratory factorial experiment was carried out to study the effect of seed stimulation with potassium nitrate (distilled water only (0), 2, 4, and 6 mg L-1) and with an aqueous extract of licorice roots (distilled water only (0), 3, 6, and 9 g L-1) on the seed viability and vigor. The laboratory experiment was carried out according to the Completely Randomized Design (CRD) with four repetitions. The results showed the superiority of the interaction treatment between the two concentrations 6 gm L-1 and 6 mg L-1 for each of licorice root extract and potassium nitrate by giving the highest average of the final germination 99%, the seedling vigor index reached 3846, the germination percentage at accelerating age test of 75%, and the germination percentage at the cold test of 76%. We can conclude that there was a response to soaking the seeds in licorice root extract at specific concentrations, with a clear response to potassium nitrate, and the response could be better when soaking in potassium nitrate at concentrations higher than 6 mg L-1. We also recommend that the soaking duration in any of the two factors is 18 hours to improve germination under a wide range of environmental conditions.
  • Effect of cultivars and harvest dates on rice seeds vigore
    Mohsen Kamel Mohammad Ali, Jalal Hameed Hamza, Ahmed Shihab Ahmed
    Bionatura, 2023
  • Field Emergence Affected by Zea Mays L. Cultivars and Seed Soaking in Acids of Ascorbic, Citric and Humic
    J. J. Kadhim, Jalal Hameed Hamza
    Iop Conference Series Earth and Environmental Science, 2021
  • Study of Seed Soaking and Foliar Application of Ascorbic Acid, Citric Acid and Humic Acid on Growth, Yield and Active Components in Maize
    J. J. Kadhim, J. H. Hamza
    Iop Conference Series Earth and Environmental Science, 2021
  • EFFECT OF SEEDS SOAKING AND VEGETATIVE PARTS NUTRITION WITH ACIDS OF ASCORBIC, CITRIC AND HUMIC ON MAIZE GROWTH
    J. J. Kadhim, J. H. Hamza
    Iraqi Journal of Agricultural Sciences, 2021
  • Effect Of Maize Seeds Soaking With Acids Of Ascorbic, Citric And Humic On Field Emergence
    Kadhim & Hamza
    Iraqi Journal of Agricultural Sciences, 2021
  • Seed priming of sorghum cultivars by gibberellic and salicylic acids to improve seedling growth under irrigation with saline water
    Mohammad Omar Shihab, Jalal Hameed Hamza
    Journal of Plant Nutrition, 2020
  • FIELD EMERGENCE IN PRIMED SEED OF SORGHUM CULTIVARS TO TOLERATE DROUGHT STRESS
    Mohammad Omar Shihab, Jalal Hameed Hamza
    Diyala Agricultural Sciences Journal, 2020
  • Seed pre-treatment with gibberellic and salicylic acids to tolerate drought stress in sorghum cultivars
    Plant Archives, 2020
  • Germination and seedling growth in primed sorghum seed with gibberellic and salicylic acids
    Plant Archives, 2020
  • Effect of soaking with bread yeast extract on sorghum seed germination under salt stress conditions
    Plant Archives, 2020
  • Seed priming of sorghum cultivars to tolerate salt stress
    M O Shihab, J H Hamza
    Iop Conference Series Earth and Environmental Science, 2019
  • Seed weight effect on germination properties and seedling growth of some cultivars of lupine
    Jalal Hameed Hamza, Wafaa Mohammed Jewad, Sudad K Al-Taweel
    Journal of Physics Conference Series, 2019
  • Effect of seed weight on stem anatomical characters in white lupine (Lupinus albus L.) cultivars
    M.A., Hasan, S.K. AL-Taweel, J.H. Hamza, W.M. Jewad
    Indian Journal of Agricultural Research, 2018
  • Effect of seed priming on grain growth rate and effective filling period in bread wheat (Triticum aestivum L.) cultivars
    H.K.M.A. Al-Haidary, S. K. Al-Taweel, J. H. Hamza, M.H.K. Al-Baldawi
    Indian Journal of Agricultural Research, 2018
  • Anatomical and physiological traits of broad bean (Vicia faba L.) seedling affected by salicylic acid and salt stress
    M.A. Hasan, S.K. AL-Taweel, H.A. Alamrani, M.A. AL-Naqeeb, M.H.K. AL-Baldawwi, et al.
    Indian Journal of Agricultural Research, 2018

RECENT SCHOLAR PUBLICATIONS

  • Iron, Zinc and Boron in Sunflower
    MA Hassan, JH Hamza
    IOP Conference Series: Earth and Environmental Science 1487 (1), 012109 , 2025
    2025
    Citations: 2
  • Effects of Ascorbic, Citric, and Humic Acids on Maize Stem and Leaf Anatomy
    JJ Kadhum, JH Hamza, MA Hasan, M Al-Amery, W Serson, MF Seleiman, ...
    Baghdad Science Journal 22 (3), 866-877 , 2025
    2025
  • Seedling growth of primed seed under drought stress in sorghum
    MO Shihab, JH Hamza, W Serson, AA Diatta, M Battaglia, M Al-Amery, ...
    Baghdad Science Journal 21 (12), 3735-3748 , 2024
    2024
  • PLANTING OF STIMULATED CORN SEEDS AT DIFFERENT DATES IN SPRING SEASONS
    MM Khudhair, JH Hamza, HZ Rihan
    IRAQI JOURNAL OF AGRICULTURAL SCIENCES 55 (2), 813-822 , 2024
    2024
    Citations: 2
  • Sustainable approach for seed stimulating and sowing date to enhance field emergence and growth of sorghum ( Sorghum bicolor L. Moench)
    A Hadi Msheewah Hamd, J Hameed Hamza
    IOP Conference Series: Earth and Environmental Science 1325 (1), 012012 , 2024
    2024
  • Effect of potassium nitrate, licorice extract and planting date on field emergence and growth of maize ( Zea mays L.) in spring season
    M Mohsen Khudhair, J Hameed Hamza
    IOP Conference Series: Earth and Environmental Science 1325 (1), 012011 , 2024
    2024
    Citations: 3
  • Sustainable practices impact and planting date on yield of sorghum ( Sorghum bicolor L. Moench)
    A Hadi Msheewah Hamd, J Hameed Hamza
    IOP Conference Series: Earth and Environmental Science 1325 (1), 012013 , 2024
    2024
  • EFFECT OF CULTIVARS AND HARVEST DATES ON SOME TRAITS OF YIELD IN RICE
    MK MohammadAli, JH Hamza, AS Ahmed
    Iraqi Journal of Agricultural Sciences 55 (Special), 122-135 , 2024
    2024
  • Effect of Stimulating Maize Seeds with Potassium Nitrate and Licorice Extract on the Seed Viability and Vigor
    MM KHudhair, JH Hamza
    IOP Conference Series: Earth and Environmental Science 1225, 012093 , 2023
    2023
    Citations: 5
  • Effect of stimulate of sorghum seeds with banana peel extract and citric acid on seeds viability and vigour
    AHM Hamd, JH Hamza
    IOP Conference Series: Earth and Environmental Science 1214, 012039 , 2023
    2023
    Citations: 6
  • Field emergence affected by zea Mays L. cultivars and seed soaking in acids of ascorbic, citric and humic
    JJ Kadhim, JH Hamza
    IOP Conference Series: Earth and Environmental Science 923, 012065 , 2021
    2021
    Citations: 6
  • Study of seed soaking and foliar application of ascorbic acid, citric acid and humic acid on growth, yield and active components In maize
    JJ Kadhim, JH Hamza
    IOP Conference Series: Earth and Environmental Science 910, 012076 , 2021
    2021
    Citations: 8
  • Effect of seeds soaking and vegetative parts nutrition with acids of ascorbic, citric and humic on maize growth
    JJ Kadhim, JH Hamza
    Iraqi Journal of Agricultural Sciences 52 (5), 1207-1218 , 2021
    2021
    Citations: 9
  • Effect of maize seeds soaking with acids of ascorbic, citric and humic on field emergence
    JJ Kadhim, JH Hamza
    Iraqi Journal of Agricultural Sciences 52 (4), 971-976 , 2021
    2021
    Citations: 14
  • Field emergence in primed seed of sorghum cultivars to tolerate drought stress
    MO Shihab, JH Hamza
    Diyala Journal of Agricultural Sciences 12, 299-314 , 2020
    2020
    Citations: 2
  • Seed priming of sorghum cultivars by gibberellic and salicylic acids to improve seedling growth under irrigation with saline water
    MO Shihab, JH Hamza
    Journal of Plant Nutrition , 2020
    2020
    Citations: 44
  • EFFECT OF SOAKINGWITH BREAD YEAST EXTRACT ON SORGHUM SEED GERMINATION UNDER SALT STRESS CONDITIONS
    AS Mustafa, NF Shajai, FF Saleh, JH Hamza, AJ Campus
    Plant Archives 20 (1), 3111-3116 , 2020
    2020
    Citations: 9
  • Seed pre-treatment with gibberellic and salicylic acids to tolerate drought stress in sorghum cultivars
    JH Hamza
    Plant Archives , 2020
    2020
    Citations: 4
  • Seed priming of sorghum cultivars to tolerate salt stress
    MO Shihab, JH Hamza
    IOP Conference Series: Earth and Environmental Science 388, 012044 , 2019
    2019
    Citations: 9
  • Seed weight effect on germination properties and seedling growth of some cultivars of lupine
    J Hameed Hamza, WM Jewad, SK Al-Taweel
    Journal of Physics: Conference Series 1294, 092010 , 2019
    2019
    Citations: 6

MOST CITED SCHOLAR PUBLICATIONS

  • Effect of boron foliar application on reproductive growth of sunflower (Helianthus annuus L.)
    MM Al-Amery, JH Hamza, MP Fuller
    International Journal of Agronomy 2011 (Article ID 230712), 5 pages, 2011 … , 2011
    2011
    Citations: 96
  • Germination of primed seed under NaCl stress in wheat
    MP Fuller, JH Hamza, HZ Rihan, M Al-Issawi
    ISRN Botany 2012 (Article ID 167804), 5 pages, 2012. doi:10.5402/2012/167804 , 2012
    2012
    Citations: 83
  • Seed priming of sorghum cultivars by gibberellic and salicylic acids to improve seedling growth under irrigation with saline water
    MO Shihab, JH Hamza
    Journal of Plant Nutrition , 2020
    2020
    Citations: 44
  • Seed priming effect on field emergence and grain yield in sorghum
    MHK AL-BALDAWI, JH HAMZA
    Journal of Central European Agriculture 18 (2), 404-423 , 2017
    2017
    Citations: 37
  • Effect of seed soaking with GA3 on emergence and seedling growth of corn under salt stress
    JH Hamza, MKM Ali
    Iraqi Journal of Agricultural Sciences 48 (3), 650-659 , 2017
    2017
    Citations: 33
  • Anatomical and physiological traits of broad bean (Vicia faba L.) seedling affected by salicylic acid and salt stress
    MA Hasan, SK AL-Taweel, HA Alamrani, MA AL-Naqeeb, ...
    Indian Journal of Agricultural Research 52 (4), 368-373 , 2018
    2018
    Citations: 28
  • Seed priming of bread wheat to improve germination under drought stress
    JH Hamza
    Iraqi Journal of Agricultural Sciences 43 (2), 100-107 , 2012
    2012
    Citations: 25
  • Effect of GA3 on germination characteristics and seedling growth under salt stress in maize
    MKM Ali, JH Hamza
    The Iraqi Journal of Agricultural Sciences 45 (1), 6-17 , 2014
    2014
    Citations: 22
  • Biofertilizer (EM-1) effect on growth and yield of three bread wheat cultivars
    MAR Al-NAQEEB, IHH Al-HILFY, JH HAMZA, ASM AL-ZUBADE, ...
    Journal of Central European Agriculture 19 (3), 530-543 , 2018
    2018
    Citations: 20
  • Effect of osmotic potential of activator solution and temperature on viability and vigour of wheat seed
    MP Fuller, JH Hamza
    African Journal of Agricultural Research 8 (22), 2786-2792 , 2013
    2013
    Citations: 16
  • Effect of maize seeds soaking with acids of ascorbic, citric and humic on field emergence
    JJ Kadhim, JH Hamza
    Iraqi Journal of Agricultural Sciences 52 (4), 971-976 , 2021
    2021
    Citations: 14
  • Stimulation of deteriorated seeds of bread wheat and test their ability to induce callus in vitro.
    JH Hamza, IA Hamza, NR Mohammad, LE Abdul-Jabaar
    Iraqi Journal of Agricultural Sciences 44 (1), 58-68 , 2013
    2013
    Citations: 14
  • Effect of Seed Size Produced from Sowing Dates on Seed Vigour, and Grain Yield of Sorghum [Sorghum bicolor (L.) Monech].
    JH Hamza
    University of Baghdad, College of Agriculture, Department of Field Crops , 2006
    2006
    Citations: 11
  • Priming of maize seed with gibberellin (GA3) to tolerate drought stress. 2. Field emergence and its properties
    HS Nada, JH Hamza
    IRAQI JOURNAL OF DESERT STUDIES 9 (1), 1-12 , 2019
    2019
    Citations: 10
  • Effect of seed priming on growth, yield and its components of three cultivars of bread wheat
    MHK AL-BALDAWI, HKMA Al-Hedarey, JH Hamza
    Proceedings of the 10th Scientific Conference on Agricultural Research 22 … , 2017
    2017
    Citations: 10
  • Effect of seeds soaking and vegetative parts nutrition with acids of ascorbic, citric and humic on maize growth
    JJ Kadhim, JH Hamza
    Iraqi Journal of Agricultural Sciences 52 (5), 1207-1218 , 2021
    2021
    Citations: 9
  • EFFECT OF SOAKINGWITH BREAD YEAST EXTRACT ON SORGHUM SEED GERMINATION UNDER SALT STRESS CONDITIONS
    AS Mustafa, NF Shajai, FF Saleh, JH Hamza, AJ Campus
    Plant Archives 20 (1), 3111-3116 , 2020
    2020
    Citations: 9
  • Seed priming of sorghum cultivars to tolerate salt stress
    MO Shihab, JH Hamza
    IOP Conference Series: Earth and Environmental Science 388, 012044 , 2019
    2019
    Citations: 9
  • Study of seed soaking and foliar application of ascorbic acid, citric acid and humic acid on growth, yield and active components In maize
    JJ Kadhim, JH Hamza
    IOP Conference Series: Earth and Environmental Science 910, 012076 , 2021
    2021
    Citations: 8
  • Effect of seed weight on stem anatomical characters in white lupine (Lupinus albus L.) cultivars.
    MA Hasan, SK AL-Taweel, JH Hamza, WM Jewad
    Indian Journal of Agricultural Research 52 (6), 666-670 , 2018
    2018
    Citations: 8