| his experiment was conducted in an unheated plastic house in Al-Bu Shaaban on the outskirts of Ramadi during the 2024 season. It evaluated five locally produced hybrids, namely 2014, 2025, 2036, 2116, and 2000 designated B1, B2, B3, B4, and B5, respectively and compared them to the Kenz hybrid (B0) which is approved by the Horticulture Department of the Iraqi Ministry of Agriculture. The experiments were based on irrigation intervals of 3, 4, and 5 days (G1, G2, and G3, respectively) using the randomized complete block design (RCBD). The 8 traits measured were plant height, number of nodes per plant, leaf area per plant, plant yield, fruits per plant, early plant yield, dry weight of shoots, and leaf proline content. The B2 hybrid excelled at 43.911 nodes per plant-1, while the B3 excelled in leaf area and number of fruits, reaching 143.46 dm2 and 53.45 fruits per plant-1, respectively. The B4 and B5 hybrids excelled in plant yield at 4.66 and 4.65 kg plant-1, respectively, while the B0 excelled by giving the highest early yield of 1.91 kg plant-1. The dry weight of the shoot and plant height did not show any significant difference between the hybrid and the hybrid superiority (B5). The B5 recorded a leaf proline concentration of 235.00 mg L-1, while the comparison hybrid (B0) had the lowest at 206.55 mg L-1. As for irrigation level, it significantly exceeded the first level (G1) in the number of cuttings, leaf area, plant yield, number of fruits, dry weight of the shoot, and plant height, amounting to 45.47 plant nodes, 152.95 dm2, 4.99 kg of plant-1, 59.01 fruits per plant-1, 82.39 g of plant-1, 286.77 cm, respectively with the G3 significantly superior in early yield at 1.93 kg per plant-1 |
- Abdullatif, S. A., and Jassim, S. N. (2010). Measuring the leaf area of rose plant rosa sp by using different regression equations. Karbala University Scientific Journal, 8(3): 114-119.
- Abogadallah, G. M. (2010). Physiology and Molecular Biology of Plants under Water Stress, 226.
- Adday, H. A., and Fathi, A. H. (2024). Development of F1 hybrid of cucumber specified for greenhouses. Anbar Journal of Agriculture Sciences, 22(1):358-368. https://doi.org/10.32649/ajas.2024.183735.
- Aghaie, P., Tafreshi, S. A. H., Ebrahimi, M. A., and Haerinasab, M. (2018). Tolerance evaluation and clustering of fourteen tomato cultivars grown under mild and severe drought conditions. Scientia Horticulturae, 232: 1-12. https://doi.org/10.1016/j.scienta.2017.12.041.
- Al-Dulaimi, L. F. (2016). Determination of irrigation interval and water requirements for cowpea crop Vigna unguiculate L. under drip irrigation system in central Iraq conditions. PhD thesis, University of Anbar, College of Agriculture, Department of Soil Sciences and Water Resources.
- Al-Mohammadi, S. M., and Al-Mohammadi, F. M. (2012). Statistics and experimental design. Dar Osama for publishing and distribution. Amman, Jordan, 376.
- Alomran, A. M., Louki, I. I., Aly, A. A., and Nadeem, M. E. (2013). Impact of deficit irrigation on soil salinity and cucumber yield under greenhouse condition in an arid environment. Agric. Sci. Technol, 15: 1247-1259.
- Al-Qargouli, A. A. (2010). Elicitation of single crosses from female cucumbers from protected cultivation and estimation of genetic parameters by complete cross-crossing. Master thesis, University of Anbar, College of Agriculture, Department of Horticulture and Landscape Engineering.
- Al-Sahaf, F. H. )1989(. Applied Plant Nutrition. Baghdad University, Ministry of Higher Education and Scientific Research. Iraq.
- Al-Sahoki, M. M., Al-Falahi, A. O., and Al-Mohammadi, A. F. (2009). Crop, Soil and Breeding Management for Drought Tolerance. Iraqi Journal of Agricultural Sciences, 40(2): 1-28.
- Arshad, I. (2017). Effect of water stress on the growth and yield of greenhouse cucumber (Cucumis sativus L.). PSM Biological Research, 2(2): 63-67.
- Bates, L. S., Waldren, R. P. A., and Teare, I. D. (1973). Rapid determination of free proline for water-stress studies. Plant and soil, 39: 205-207. https://doi.org/10.1007/BF00018060.
- Hakkim, A. V. M., and Chand, J. A. R. (2014). Effect of drip irrigation levels on yield of salad cucumber under naturally ventilated polyhouse. IOSR Journal of Engineering, 4(4): 18-21.
- Hamid, Z. H., and Mansour, R. J. (2017). Glutamine and cucumber tolerant to drought stress. World Journal of Pharmacy and Pharmaceutical Sciences, 7(3): 79-87.
- Hossain, S. A. A. M., Wang, L., and Liu, H. (2018). Improved greenhouse cucumber production under deficit water and fertilization in Northern China. International Journal of Agricultural and Biological Engineering, 11(4): 58-64.
- Mo, Y., Wang, Y., Yang, R., Zheng, J., Liu, C., Li, H., ... and Zhang, X. (2016). Regulation of plant growth, photosynthesis, antioxidation and osmosis by an arbuscular mycorrhizal fungus in watermelon seedlings under well-watered and drought conditions. Frontiers in Plant Science, 7: 644. https://doi.org/10.3389/fpls.2016.00644.
- Mohammed, I. A., Alabdaly, M. M. M., and Al-Hadeethi, I. K. H. (2020). Effect of water stress on growth and yield of some cucumber hybrids in greenhouses in Iraq. Anbar Journal of Agricultural Sciences, 18(1): 75-84. https://doi.org/10.32649/ajas.2020.170512.
- Mohammed, I. A., Al-Hadeethi, I. K. H., and Alabdaly, M. M. M. (2019). Consumptive water use for cucumber in green house in west Iraq. Iraqi Journal of Desert Studies, 9(2).
- Najarian, M., Mohammadi-Ghehsareh, A., Fallahzade, J., and Peykanpour, E. (2018). Responses of cucumber (Cucumissativus L.) to ozonated water under varying drought stress intensities. Journal of Plant Nutrition, 41(1): 1-9. https://doi.org/10.1080/01904167.2017.1346665.
- Rolaniya, O. P., Verma, I. M., Bhunia, S. R., and Choudhary, S. K. (2018). Effect of irrigation levels and mulch on growth and yield of cucumber Cucumis sativus L. under poly house. International Journal of Current Microbiology and Applied Sciences, 7(3): 3748-3756.
- Sadiq, M., AKRAM, N. A., and Ashraf, M. (2017). Foliar applications of alpha-tocopherol improves the composition of fresh pods of Vigna radiata subjected to water deficiency. Turkish Journal of Botany, 41(3): 244-252. DOI: 10.3906/bot-1610-24.
- Sahin, U., Kuslu, Y., and Kiziloglu, F. M. (2015). Response of cucumbers to different irrigation regimes applied through drip-irrigation system. J. Anim. Plant Sci, 25(1): 198-205.
- Saeed, S. S., and Adday, H. A. (2021). Hybrid Vigour, Performance Assessment and Genetic Properties of Some F1 Hybrid Cucumber. In IOP Conference Series: Earth and Environmental Science, 761(1): 012063. DOI: 10.1088/1755-1315/761/1/012063.
- The Ministry of Planning. (2022). Central Statistical Organization. Report on the Production of Secondary Crops and Vegetables by Iraqi Governorates for the (2022) Season.
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