| The experiment was conducted at the Research Station of the University of Anbar, College of Agriculture, in the Albuaitha area located on longitude E43.3265 and latitude N33.4537 for the spring season of 2023, with the aim of studying the effect of foliar spraying with the growth regulator CPPU and cobalt on two potato varieties, Rudolf and Albada. The experiment was conducted according to randomized complete block design (RCBD) with the split-split arrangement with three replications. The first factors are varieties, namely (Rudolf and Albada), coded as V1 and V2, allocated to the main plots, the second is CPPU spraying in three different concentrations (0, 3, and 6 mg. L-1), symbolizes it B, and allocated to the sub-plots, and the third factor is cobalt spraying with three concentrations (0, 5, and 10 mg. L-1), symbolizes it C, and allocated to sub-sub-plots. The outcome showed The Rudolf cultivar is superior in terms of plant height, leaf area, dry weight, and total yield, at 49.84 cm., 120.25 cm2 Plant-1, 58.86 g. Plant-1, 54.06 tons. ha-1) respectively. The Albada variety was superior in chlorophyll, achieving 22.569 mg 100 g-1 fresh weight). Whereas, for CPPU spraying, the third concentration achieved the highest value in plant height, leaf area, chlorophyll, vegetative dry weight, and total yield, at 49.75 cm. 119.74 cm2. Plant-1, 22.759 mg 100 g-1 fresh weight, 57.94 g. Plant-1, and 61.55 tons. ha-1 respectively. Cobalt, however, in contrast, achieved the third concentration of 10 mg. L-1 in the same characteristics under study, the highest values reached (47.85 cm, 116.77 cm2. Plant-1, 22.692 mg 100 g-1 fresh weight, 55.37 g. Plant-1, 56.81 tons. ha-1 respectively. Whereas, the three-way interaction, the Rudolf variety with the third level of CPPU and cobalt achieved plant height, leaf area, dry weight, and total yield at their highest value, which reached 57.26 cm. Plant-1, 126.23 cm2. Plant, 63.69 g. Plant-1, 68.89 tons. ha-1) and Albada with CPPU and cobalt at the second concentration gave the highest result of 26.940 mg 100 g-1 fresh weight for chlorophyll. |
- Abu Zeid AN, 2000. Plant hormones and agricultural applications. Arab Publishing and Distribution House.
- Ahmed MSH, Hamad AH, Saleh SN,and Al-Shaheen MR, 2021. The Effect of Spraying with Benzyle Adnin and Marine Alga Extract (Algazone) in Improving the Phenotypic Properties of Green Landscap. IOP Conference Series: Earth and Environmental Science, 761(1), 012047.
- Al-Mohammadi, S. M., & Mohammadi, F. H. A. L. (2012). Statistics and experimental design. dar osama for publication and distribution/amman, jordan. pp: 376.
- Al-Dulaimi, A. A. K., and Al-Janabi, A. M. I. (2021, June. Response of Young Olive (Olea europaea L.) Trees cv. “K18” to Foliar Application with Promalin and Salicylic Acid Under Field Conditions. In IOP Conference Series: Earth and Environmental Science Vol. 779, No. 1, p. 012012
- Al-Fadhli JTM, 2006. The Effect of Adding NPK to the Soil and Spraying on The Growth, Yield and Components of Potatoes. Master's thesis, College of Agriculture, University of Baghdad.
- Al-Issawi AK, Al-Mohammedi OHM, 2023. A study of Three Planting Dates and Spraying with Zinc, Boron and Polyamine (Putrescine) on the Growth and Yield of Broccoli. IOP Conference Series: Earth and Environmental Science.
- Al-Janabi AMI, Aubied IA, 2021. Effect of foliar application with KT-30 and active dry yeast in growth and chemical content of nagami kumquat (Fortunella margarita Swingle) saplings. Int J Agricult Stat Sci, 17, 1687-1693.
- Al-Khafaji MA, 2014. Plant growth regulators and their applications and horticultural uses. University House for Printing, Publishing and Translation, College of Agriculture, University of Baghdad.
- Al-Sahhaf FH, 1989. No tillage agriculture systems. Ministry of Higher Education and Scientific Research
- AL-Taey DK, Saadoon AHS, ALAzawi SS, 2021. Study of kinetin treatment on growth and activity of some antioxidant enzymes of spinach under salt stress. Current Trends in Natural Sciences, 10(19), 457-465.
- Aremu AO, Fawole OA, Makunga NP, Masondo NA, Moyo M, Buthelezi N, et al., 2020. Applications of cytokinins in horticultural fruit crops: Trends and future prospects. Biomolecules, 10, 1222.
- Bangerth F, Li CJ, Gruber J, 2000. Mutual interaction of auxin and cytokinins in regulating correlative dominance. Plant Growth Regulation, 32, 205–217.
- Batool T, Ali S, Seleiman MF, Naveed NH, Ali A, Ahmed K, et al., 2020. Plant growth promoting rhizobacteria alleviates drought stress in potato in response to suppressive oxidative stress and antioxidant enzymes activities. Scientific Reports, 10(1), 16975.
- Calıskan ME, Bakhsh A, Jabran K (Eds.), 2022. Potato Production Worldwide. Academic Press.
- Central Bureau of Statistics, 2022. Agricultural Statistical Atlas, Ministry of Planning, Directorate of Agricultural Statistics. The Republic of Iraq.
- FAOSTAT, 2020. Food and Agricultural Organization Corporate Statistical Database, Food and Agriculture Organization of the United Nations, Statistics Division, Rome. https://www.fao.org/faostat/en/#home
- Gad N, El-Metwally IM, 2015. Chemical and Physiological response of maize to salinity using cobalt supplement. Inter J of Chem Tech Rese, 8(10), 45-52.
- Gad N, Fekry ME, Abou-Hussein SD, 2017. Improvement of Faba bean (Vicia faba L.) Productivity by using cobalt and different levels of compost under new reclaimed lands. Middle East J of Applied Sci, 7(3), 493-500.
- Gad N, Kandil H, 2009. The influence of cobalt on sugar Beet (Beta vulgris L.) production. Inter J of Academic Rese, 1(2), 52-58.
- Gad N, Mohommed AM, Bekbayera LK, 2013. Response of cowpea (Vigna Anguiculata L.) to cobalt Nutrition. Middle East J of Sci Rese, 14(2), 177-184.
- Hassan AAM, 1999. Potato production. Vegetable Crops Series. Arab House for Publishing and Distribution.
- Kandil H, Farid lM, Maghraby A, 2013. Effect of Cobalt level and nitrogen source on quantity and quality of soybean plant. J. Basic. A epli. sci.Res., 3(12), 185-192.
- Lomin SN, Myakushina YA, Kolachevskaya OO, Getman IA, Savelieva EM, Arkhipov DV, et al., 2020. Global view on the cytokinin regulatory system in potato. Front. Plant Sci., 11, 613624.
- McNeilly D, 2004. Forchlorfenuron. EPA. Pesticide Fact Sheet. Environmental Protection Agency. Office of Pesticide Programs.
- Musleh S H and Muslah Almohammedi O H. Response of Potato to Organic Fertilizer and Zinc Sulfate Spraying on some Growth Characteristics and Yield. Revis Bionatura 2023;8 (2) 92. http://dx.doi.org/10.21931/RB/2023.08.02.92.
- Nadia Gad, Shafie AM, Abdel Fatah MS, 2008. Effect of cobalt on cucumber growth, fruits yield and mineral composition. J. Agric. Sci. Mansours Univ., 33(1), 909-915.
- Sadik KS, Al-Taweel AA, Dhyeab NS, Khalaf MZ, 2011. New computer program (Digimizer) for estimating leaf area of several vegetable crops. American-Eurasian Journal of Sustainable Agriculture, 5(2), 304-309.
- Shraida AS, Almohammedi .2021. Effect of salicylic acid and arginine spraying on growth and some of its active compounds of basil Ocimum Basilicum L. IOP Conf S Earth Environ Sci. 761, 012061.
- Taha FA, 2007. The Effect of Potassium Fertilizer and Soil Mulching on Three Varieties of Potatoes Grown in Basra Governorate. Doctoral thesis, College of Agriculture, University of Basra, Ministry of Higher Education and Scientific Research, Republic of Iraq.
- Trejo EJO, Brizzolara S, Cardillo V, Ruperti B, Bonghi C, Tonutti P, 2023. The impact of PGRs applied in the field on the postharvest behavior of fruit crops. Scientia Horticulturae, 318(1), 1-11.
- Werner T, Motyka V, Strnad M, 2001. Regulation of Plant growth by cytokinin. Max Planck Institute for Plant Breeding Research, Cologne, Germany.
- Yu J, Li Y, Qian Y, Zhu Z, 2001. Cell division and cell enlargement in fruit of Lagenaria leucantha as influenced by pollination and plant growth substances. Plant Growth Regulation, 33, 117–122.
- Zainaldeen MA, Rasool IA, 2018. Effect of foliar application of gibberellin and nutrients on growth and yield of potato var. "burren". The Iraqi Journal of Agricultural Science, 49(2), 279-287.
- Zhang GF, Chang KZ, 2010. Introduction on the Applied Research of CPPU [J]. Enterprise Sci. & Techn. & Devel., 23, 22-24.
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