Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop
The most important factor impacting wheat production is water stress that occurs during the reproductive growth stage. Therefore, the plant responses and water productivity as affected by drought priming were investigated during Rabi seasons 2021 and 2022. The field trials were conducted in the rese...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/20/3704 |
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| author | Inayatullah Katohar Rajesh Kumar Soothar Farman Ali Chandio Mashooque Ali Talpur Shakeel Ahmed Soomro Ashutus Singha Li Bin Muhammad Uris Mirjat |
| author_facet | Inayatullah Katohar Rajesh Kumar Soothar Farman Ali Chandio Mashooque Ali Talpur Shakeel Ahmed Soomro Ashutus Singha Li Bin Muhammad Uris Mirjat |
| author_sort | Inayatullah Katohar |
| collection | DOAJ |
| description | The most important factor impacting wheat production is water stress that occurs during the reproductive growth stage. Therefore, the plant responses and water productivity as affected by drought priming were investigated during Rabi seasons 2021 and 2022. The field trials were conducted in the research field of the Department of Irrigation and Drainage, Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam. The Hamal-BNS wheat variety was subjected to differing irrigation water regime levels (40%, 50% and 60% of soil water holding capacity, SWHC) after being subjected to drought priming, irrigation water recovery (water closure period) and drought priming. There were six treatments: (1) DPP-40 (drought priming plants at 40% of SWHC), (2) DPP-50, (3) DPP-60, (4) CTP-40 (controlled treated plants at 40% of SWHC), (5) CTP-50 and (6) CTP-60. During the experiment period, soil moisture content was significantly affected by the different treatments at various growth stages of wheat. The results indicated that winter wheat pre-exposed to drought priming attained a stress imprint that improved the subsequent deficit water levels which occurred during the later plant growth stage as demonstrated by the progress of test weight, grain yield, plant level water use efficiency and irrigation water use efficiency as well as relative yield compared to CTP-50 (control treatment). Under the irrigation water regime levels during the post-anthesis period, primed wheat plants sustained grain yield and higher relative yield than wheat plants without priming due to the better irrigation water regime for drought-primed wheat plants. Similarly, primed wheat plants consumed 18.3% less irrigation water as compared to non-primed plants, which significantly increased plant level WUE and irrigation WUE and decreased dry biomass and root development of drought-primed wheat plants. Therefore, to conserve fresh water for other field crops and increase water productivity in the Sindh province, it is recommended that drought priming is used during the early growth period of wheat plants as a successful irrigation method. |
| first_indexed | 2024-03-10T20:49:23Z |
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| id | doaj.art-fc03c212c24a40b2abd518bc1617b77e |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T20:49:23Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-fc03c212c24a40b2abd518bc1617b77e2023-11-19T18:31:42ZengMDPI AGWater2073-44412023-10-011520370410.3390/w15203704Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat CropInayatullah Katohar0Rajesh Kumar Soothar1Farman Ali Chandio2Mashooque Ali Talpur3Shakeel Ahmed Soomro4Ashutus Singha5Li Bin6Muhammad Uris Mirjat7Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanFaculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanFaculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanFaculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanFaculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanDepartment of Irrigation and Water Management, Sylhet Agricultural University, Sylhet 3100, BangladeshCollege of Optical, Mechanical and Electrical Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, ChinaFaculty of Agricultural Engineering, Sindh Agriculture University, Tandojam 70060, PakistanThe most important factor impacting wheat production is water stress that occurs during the reproductive growth stage. Therefore, the plant responses and water productivity as affected by drought priming were investigated during Rabi seasons 2021 and 2022. The field trials were conducted in the research field of the Department of Irrigation and Drainage, Faculty of Agricultural Engineering, Sindh Agriculture University, Tandojam. The Hamal-BNS wheat variety was subjected to differing irrigation water regime levels (40%, 50% and 60% of soil water holding capacity, SWHC) after being subjected to drought priming, irrigation water recovery (water closure period) and drought priming. There were six treatments: (1) DPP-40 (drought priming plants at 40% of SWHC), (2) DPP-50, (3) DPP-60, (4) CTP-40 (controlled treated plants at 40% of SWHC), (5) CTP-50 and (6) CTP-60. During the experiment period, soil moisture content was significantly affected by the different treatments at various growth stages of wheat. The results indicated that winter wheat pre-exposed to drought priming attained a stress imprint that improved the subsequent deficit water levels which occurred during the later plant growth stage as demonstrated by the progress of test weight, grain yield, plant level water use efficiency and irrigation water use efficiency as well as relative yield compared to CTP-50 (control treatment). Under the irrigation water regime levels during the post-anthesis period, primed wheat plants sustained grain yield and higher relative yield than wheat plants without priming due to the better irrigation water regime for drought-primed wheat plants. Similarly, primed wheat plants consumed 18.3% less irrigation water as compared to non-primed plants, which significantly increased plant level WUE and irrigation WUE and decreased dry biomass and root development of drought-primed wheat plants. Therefore, to conserve fresh water for other field crops and increase water productivity in the Sindh province, it is recommended that drought priming is used during the early growth period of wheat plants as a successful irrigation method.https://www.mdpi.com/2073-4441/15/20/3704drought primingirrigation water regimeplant growthgrain yieldwater productivity |
| spellingShingle | Inayatullah Katohar Rajesh Kumar Soothar Farman Ali Chandio Mashooque Ali Talpur Shakeel Ahmed Soomro Ashutus Singha Li Bin Muhammad Uris Mirjat Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop Water drought priming irrigation water regime plant growth grain yield water productivity |
| title | Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop |
| title_full | Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop |
| title_fullStr | Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop |
| title_full_unstemmed | Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop |
| title_short | Drought Priming and Subsequent Irrigation Water Regimes Enhanced Grain Yield and Water Productivity of Wheat Crop |
| title_sort | drought priming and subsequent irrigation water regimes enhanced grain yield and water productivity of wheat crop |
| topic | drought priming irrigation water regime plant growth grain yield water productivity |
| url | https://www.mdpi.com/2073-4441/15/20/3704 |
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