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DOI	10.3390/atmos12060663
	Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize
	Wasaya, Allah; Affan, Muhammad; Ahmad Yasir, Tauqeer; Atique-ur-Rehman; Mubeen, Khuram; Rehman, Haseeb Ur; Ali, Muqarrab; Nawaz, Farukh; Galal, Ahmed; Iqbal, Muhammad Aamir; Islam, Mohammad Sohidul; El-Sharnouby, Mohamed; Rahman, Muhammad Habib ur; EL Sabagh, Ayman
通讯作者	Wasaya, A (corresponding author), Bahauddin Zakariya Univ, Coll Agr, Bahadur Subcampus Layyah, Layyah 31200, Pakistan. ; EL Sabagh, A (corresponding author), Univ Kafrelsheikh, Fac Agr, Dept Agron, Kafrelsheikh 33516, Egypt.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:6
英文摘要	Changing climates and frequent spells of drought have increased the risk of crop failure, especially in arid and semi-arid regions, thus multiplying the vulnerability of food-insecure populations. The exogenous application of potassium (K) can potentially ameliorate the adverse effects of drought in maize by maintaining cell osmotic potential and turgidity, provided its optimum doses are applied. The present experiment comprised two maize cultivars, viz. Islamabad Gold (drought tolerant) and Azam (drought susceptible), grown under well-watered (80% water-holding capacity (WHC)), mild drought (60% WHC) and severe drought (40% WHC) conditions. Different doses of K, viz. 0%, 1% and 2%, were also tested to screen out the most superior concentration. Drought stress markedly reduced root and shoot lengths (25% and 16%, respectively) along with their dry weights (20% and 10%, respectively). Moreover, a substantial reduction in leaf relative water content (RWC) (24%), stomatal conductance, transpiration and photosynthesis rates, chlorophyll pigments a, b and total chlorophyll contents (31%) were recorded, compared with well-watered conditions. However, foliar application of K2SO4 at 2% concentration outperformed other doses by improving growth attributes, RWC (10%), total chlorophyll (9%) and proline (12%) under severe drought conditions. Our findings confirmed the effectiveness of foliage-applied K2SO4 in ameliorating drought effects in rainfed maize; however, more doses and sources of K could be tested for developing it as a potent source to cope with water stress.
英文关键词	chlorophyll contents drought stress photosynthetic activity proline contents relative water content
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000665556000001
WOS关键词	LIPID-PEROXIDATION ; SALT TOLERANCE ; VITAL ROLE ; YIELD ; LIMITATIONS ; DEFICIENCY ; FERTILIZATION ; CONDUCTANCE ; IRRIGATION ; NUTRITION
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349615
作者单位	[Wasaya, Allah; Ahmad Yasir, Tauqeer; Nawaz, Farukh] Bahauddin Zakariya Univ, Coll Agr, Bahadur Subcampus Layyah, Layyah 31200, Pakistan; [Affan, Muhammad] PMAS Arid Agr Univ, Dept Agron, Rawalpindi 46300, Pakistan; [Atique-ur-Rehman; Rehman, Haseeb Ur] Bahauddin Zakariya Univ, Dept Agron, Multan 60000, Pakistan; [Mubeen, Khuram; Ali, Muqarrab] MNS Univ Agr, Dept Agron, Multan 60000, Pakistan; [Galal, Ahmed; EL Sabagh, Ayman] Univ Kafrelsheikh, Fac Agr, Dept Agron, Kafrelsheikh 33516, Egypt; [Iqbal, Muhammad Aamir] Univ Poonch Rawalakot, Fac Agr, Dept Agron, Rawalakot 12350, Pakistan; [Islam, Mohammad Sohidul] Hajee Mohammad Danesh Sci & Technol Univ, Dept Agron, Dinajpur 5200, Bangladesh; [El-Sharnouby, Mohamed] Taif Univ, Coll Sci, Dept Biotechnol, POB 11099, At Taif 21944, Saudi Arabia; [Rahman, Muhammad Habib ur] Univ Bonn, Inst Crop Sci & Resource Conservat INRES, Dept Crop Sci, D-53115 Bonn, Germany
推荐引用方式 GB/T 7714	Wasaya, Allah,Affan, Muhammad,Ahmad Yasir, Tauqeer,et al. Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize[J],2021,12(6).
APA	Wasaya, Allah.,Affan, Muhammad.,Ahmad Yasir, Tauqeer.,Atique-ur-Rehman.,Mubeen, Khuram.,...&EL Sabagh, Ayman.(2021).Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize.ATMOSPHERE,12(6).
MLA	Wasaya, Allah,et al."Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize".ATMOSPHERE 12.6(2021).