EFFECT OF CULTIVARS AND PLANTING DATE ON THE FIELD EMERGENCE OF SUNFLOWER.
DOI:
https://doi.org/10.36103/1rmdv419Keywords:
Chlorophyll index, Field establishment, Leaf area index, PhotosynthesisAbstract
ABSTRACT
This study aimed to investigate effect of genetic and environmental factors and their interaction on field establishment of sunflower, due to the weakness and variability of emergence. A field experiment was conducted during the fall of 2023 and spring of 2024 seasons at station A, one of the research stations affiliated to the College of Agricultural Engineering Sciences, University of Baghdad. The goal was to improve field emergence rates, reduce emergence duration, and enhance chlorophyll content and photosynthesis. A split plot arrangement within Randomized Complete Block Design with four replications was used. The main factor was planting dates, and the secondary factor was three sunflower cultivars (Aqmar, Flammy, and Sakha). Results showed that the July 10 planting date had the best field emergence, while June 1 resulted in better plant height and leaf area index in the fall. Similarly, the March 30 planting date showed superior emergence rates and plant height in the spring. The Flammy cultivar consistently outperformed others in emergence and growth characteristics across both seasons. This suggests that genetic factors significantly influence emergence rates and plant performance under varying environmental conditions.
Received: 16/9/2024
Accepted: 8/12/2024
Published: 30/6/2026
References
Ahmed, H. M. (2016). Effect of humic acid and chelated iron on growth and yield of sunflower (Helianthus annuus L.) (Master's thesis, College of Education for Pure Sciences, University of Diyala). https://search.emarefa.net/ar/detail/BIM-866570
Al-Dulaimi, M. M. (2005). Response of sunflower varieties to planting dates and spacing (Master's thesis, College of Agriculture and Forestry, University of Mosul). https://iqdr.iq/search?view=d0bf4cbdbecfa0e12e0e269dbcb49d30
Al-Haidari, S. F. (2021). Estimation of some genetic parameters of sunflower varieties under irrigation interval effects (Master's thesis, Department of Field Crops, College of Agriculture, University of Baghdad). https://agr.mu.edu.iq
Al-Nuaimi, M. Y. K. (2018). Effect of algae extract (Alga 600) spraying on the growth, yield, and quality of three genetic structures of sunflower (Helianthus annuus L.) (Master's thesis, College of Agriculture, University of Tikrit). https://library.alkafeel.net/dic/print/page-book/239172
Al-Saadi, M. I. H. (2023). Control of fertilization activation in sunflower (Master's thesis, Department of Field Crops, College of Agricultural Engineering Sciences, University of Baghdad). https://www.facebook.com/media.collegeofagriculture/posts
Al-Saadi, N. A. J. (2014). Effect of planting dates and cultivars on the growth and yield of sunflower (Helianthus annuus L.) (Master's thesis, College of Education for Pure Sciences, University of Diyala). https://iqdr.iq/search?view=dc03445aea6e66708f7d4adbb6db1696
Al-Shamaa, L. M. J. (2002). Growth stages and yield of sunflower (Helianthus annuus L.) genetic structures under the influence of planting date (Master's thesis, Department of Field Crops, College of Agriculture, University of Baghdad). https://library.alkafeel.net
Al-Shamaa, L. M. J., & Bakr, R. H. (2008). Effect of planting dates on the morphological traits of three genetic structures of sunflower. Diyala Journal of Agricultural Sciences, 49(1), 57-68. https://djhr.uodiyala.edu.iq/index.php/DJHR2022/article/view/1695/1581
Atiya, H. A., & Kazem, S. H. (2017). Response of some vegetative growth traits of two cultivars of sunflower to the number of humic acid sprays. Karbala Journal of Agricultural Sciences, 4(1), 14-26. https://journals.uokerbala.edu.iq/index.php/Agriculture/article/download/76/34
Catiempo, R. L., Photchanaachai, S., Bayogan, E. R. V., & Wongs-Aree, C. (2021). Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature. Plant, Soil and Environment, 67(9), 491-498. https://doi.org/10.17221/163/2021-PSE DOI: https://doi.org/10.17221/163/2021-PSE
Debata, D. K. (2024). Effect of dates of planting in sunflower. International Journal of Creative Research Thoughts, 12(1). https://www.ijcrt.org
Elewi, A. Y. (2020). Response of some sunflower genotypes to foliar spray with folic acid (vitamin B9) (Master's thesis, College of Agricultural Engineering Sciences, University of Baghdad).
http://doi.org/0032-0889/98/0516/09/$01.00/0
Elawi, A. Y., & Zeboon, N. H. (2020). The effect of folic acid on growth traits of four sunflower (Helianthus annuus L.) genotypes. Plant Archives, 20(2), 4735-4741. http://plantarchives.org/20-2/4735-4741%20(6564).pdf
Elsahookie, M. (1994). Sunflower: Production and improvement. IPA Research Center for Agriculture, Baghdad. https://www.researchgate.net/profile/Shaker-Aday/publication/33019625
Elsahookie, M. M., & Cheyed, S. H. (2023). Seed growth relationships. Ministry of Higher Education and Scientific Research. https://www.researchgate.net/publication/ 367541739_Seed_Growth_Relationships
Ghazi, T. M. (2020). The role of selection in improving some sunflower traits related to drought tolerance (Master's thesis, Department of Field Crops, College of Agriculture, University of Baghdad). https://library.alkafeel.net/dic/print/page-book/267332/?show
Gursoy, M. (2022). Role of biostimulant priming applications on germination, growth and chlorophyll content of sunflower (Helianthus annuus L.) cultivars under salinity stress. Selcuk Journal of Agriculture and Food Sciences, 36(1), 75-81. https://doi.org/10.15316/SJAFS.2022.011 DOI: https://doi.org/10.15316/SJAFS.2022.011
Hamd, A. H. M., & Hamza, J. H. (2024). Sustainable approach for seed stimulating and sowing date to enhance field emergence and growth of sorghum (Sorghum bicolor L. Moench). IOP Conference Series: Earth and Environmental Science, 1325, Article 012012. https://doi.org/10.1088/1755-1315/1325/1/012012 DOI: https://doi.org/10.1088/1755-1315/1325/1/012012
Iqbal, M., Ahmad, A. T., Ahmad, Z., Saleem, A. M., & Ahmad, B. (2015). Overviewing comparative efficacy of different germination enhancement techniques for cereal crops. American-Eurasian Journal of Agricultural & Environmental Sciences, 15(9), 1790-1802. https://doi.org/10.5829/idosi.aejaes.2015.15.9.12677
Isa, T. A. (1990). Crop plant physiology. University of Baghdad, Ministry of Higher Education and Scientific Research. https://uomustansiriyah.edu.iq/books/56792.html
Jassim, A. R. A. L., Ali, M. M., & Alik, M. K. (2009). Effect of some tillage and fertilization systems on growth and yield of sunflower (Helianthus annuus L.). Diyala Journal of Agricultural Sciences, 1(1), 95-107. https://iasj.net/iaj/ldownload/333daeb6355eedeo
Jiyad, S. H., Mohammed, N. J., & Hamza, J. H. (2017). Prediction of field emergence for various plant genera through some laboratory germination tests. Karbala Journal of Agricultural Sciences, 4(1), 88-99. https://journals.uokerbala.edu.iq:8443/index.php/Agriculture/article/view/85/40
Kader, M. A. (2005). A comparison of seed germination calculation formulae and the associated interpretation of resulting data. Journal and Proceedings of the Royal Society of New South Wales, 138(4), 65-75. https://doi.org/10.5962/p361564 DOI: https://doi.org/10.5962/p.361564
Martin, J. H., & Leonard, W. H. (1959). Principles of field crop production. The MacMillan Company. https://www.researchgate.net/publication/367361336
Mobeen, P. A., Al-Ghamdi, A. A., Al-Hemaid, F. M., & Abdel Gawwad, M. R. (2023). Screening of sunflower (Helianthus annuus L.) cultivars/hybrids for heat stress tolerance using growth and physio-biochemical indicators. Turkish Journal of Agriculture and Forestry, 47(1), 6.
https://doi.org/10.55730/1300-011x.3063 DOI: https://doi.org/10.55730/1300-011X.3063
Ndor, E., Anzaku, H., Jayeoba, O. J., & Dauda, S. N. (2018). Effect of planting date on the performances of sunflower (Helianthus
annuus L.) varieties in Lafia. In Proceedings of the 36th Annual Conference of the Horticultural Society of Nigeria (pp. 148-153). Faculty of Agriculture, Shabu-Lafia Campus, Nasarawa State University.
Pinkovskyi, H., & Tanchyk, S. (2021). Management of productivity of sunflower plants depending on terms of sowing and density of standing in arid conditions of the right-bank steppe of Ukraine. Agronomy Science, 76(1), 21-38. https://doi.org/10.24326/as.2021.1.2 DOI: https://doi.org/10.24326/as.2021.1.2
Pinkovskyi, H. V., & Tanchyk, S. P. (2019). Produktyvnist ta vodospozhyvannia serednorannikh hibrydiv soniashnyka zalezhno vid strokiv sivby ta hustoty stoiannia roslyn u pravoberezhnomu stepu Ukrainy [Productivity and water consumption of mid-early sunflower hybrids depending on sowing time and plant standing density in the right-bank steppe of Ukraine]. Irrigated Agriculture, 72(2), 47-52. https://doi.org/10.32848/0135-2369.2019.72.11 DOI: https://doi.org/10.32848/0135-2369.2019.72.11
Sadras, V. O., & Villalobos, F. J. (1993). Floral initiation, leaf initiation, and leaf appearance in sunflower. Field Crops Research, 33(4), 449-457. https://doi.org/10.1016/0378-4290(93)90165-J DOI: https://doi.org/10.1016/0378-4290(93)90165-J
Salem, S. H. F., Al-Aboudi, M. O. K., & Al-Badiri, S. A. M. (2014). Effect of planting dates and plant density on growth and yield of two sunflowers (Helianthus annuus L.) varieties. Dhi Qar Journal of Agricultural Research, 3(1), 43-58. https://imamhussain-lib.com/arb/wp-content/uploads/2016/03
Sfaeean, M. A., & Alani, M. H. I. (2021). Effect of soaking in acid solution on sunflower (Helianthus annuus L.) germination and field emergence. IOP Conference Series: Earth and Environmental Science, 761, Article 012075. https://doi.org/10.1088/1755-1315/761/1/012075 DOI: https://doi.org/10.1088/1755-1315/761/1/012075
Shamran, H. H., Abdul-Hussain, H., & Al-Mughair, M. (2022). The effect of planting date and potassium levels on the growth and yield of sunflower. Al-Muthanna Journal for Science, 9(2), 1-7. http://doi.org/10.52113/mjas04/9.2/20 DOI: https://doi.org/10.52113/mjas04/9.2/20
Steel, R. G., & Torrie, J. H. (1986). Principles and procedures of statistics: A biometrical approach. McGraw-Hill.
Surhaid, B. R., Al-Aani, M. H. I., & Hassan, H. A. M. (2015). Effect of manganese spraying on the growth and yield of three sunflower (Helianthus annuus L.) varieties. Anbar Journal of Agricultural Sciences, 13(2), 170-179. https://iasj.net/iasj/download/c7d8839b22486496 DOI: https://doi.org/10.32649/ajas.2015.120062
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