干旱区生态环境知识资源中心(Arid): Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions

Arid

DOI	10.1016/j.heliyon.2024.e26077
	Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions
	Abd-El-Aty, Mohamed S.; Kamara, Mohamed M.; Elgamal, Walid H.; Mesbah, Mohamed I.; Abomarzoka, ElSayed A.; Alwutayd, Khairiah M.; Mansour, Elsayed; Ben Abdelmalek, Imen; Behiry, Said I.; Almoshadak, Ameina S.; Abdelaal, Khaled
通讯作者	Alwutayd, KM
来源期刊	HELIYON
EISSN	2405-8440
出版年	2024
卷号	10 期号:5
英文摘要	Water deficit is a critical obstacle that devastatingly impacts rice production, particularly in arid regions under current climatic fluctuations. Accordingly, it is decisive to reinforce the drought tolerance of rice by employing sustainable approaches to enhance global food security. The present study aimed at exploring the effect of exogenous application using different biostimulants on physiological, morphological, and yield attributes of diverse rice genotypes under water deficit and well-watered conditions in 2-year field trial. Three diverse rice genotypes (IRAT-112, Giza178, and IR-64) were evaluated under well-watered (14400 m3/ha in total for the entire season) and water deficit (9170 m3/ha) conditions and were exogenously sprayed by nano-silicon, potassium sulfate, or proline. The results showed that drought stress substantially decreased all studied photosynthetic pigments, growth traits, and yield attributes compared to well-watered conditions. In contrast, antioxidant enzyme activities and osmoprotectants were considerably increased compared with those under well-watered conditions. However, the foliar application of nano-silicon, potassium sulfate, and proline substantially mitigated the deleterious effects of drought stress and markedly enhanced photosynthetic pigments, antioxidant enzyme activities, growth parameters, and yield contributing traits compared to untreated stressed control. Among the assessed treatments, foliar spray with nano-silicon or proline was more effective in promoting drought tolerance. The exogenous application of proline improved chlorophyll a, chlorophyll b, and carotenoids by 21.4, 19.6 and 21.0% followed by nano-silicon treatment, which enhanced chlorophyll a, chlorophyll b, and carotenoids by 21.1, 17.6 and 9.5% compared to untreated control. Besides, the application of proline demonstrated a superior improvement in the content of proline by 52.5% compared with the untreated control. Moreover, nano-silicon exhibited the maximum enhancement of catalase and peroxidase activity compared to the other treatments. The positive impacts of applied exogenously nano-silicon or proline significantly increased panicle length, number of panicles/plant, number of grains/panicle, fertility percentage, 1000grain weight, panicle weight, and grain yield, compared to untreated plants under water deficit conditions. In addition, the physiological and agronomic performance of evaluated rice genotypes significantly contrasted under drought conditions. The genotype Giza-178 displayed the best performance under water deficit conditions compared with the other genotypes. Consequently, the integration of applied exogenously nano-silicon or proline with tolerant rice genotype as Giza-178 is an efficient approach to ameliorating drought tolerance and achieving agricultural sustainability under water-scarce conditions in arid environments.
英文关键词	Antioxidant enzymes Drought stress Genotype Genetics Heatmap mediterranean environments Principal component biplot
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001195669800001
WOS关键词	DROUGHT RESISTANCE ; STRESS TOLERANCE ; GAS-EXCHANGE ; GROWTH ; YIELD ; GERMINATION ; MECHANISMS ; RESPONSES ; PLANT ; OXIDE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404014
推荐引用方式 GB/T 7714	Abd-El-Aty, Mohamed S.,Kamara, Mohamed M.,Elgamal, Walid H.,et al. Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions[J],2024,10(5).
APA	Abd-El-Aty, Mohamed S..,Kamara, Mohamed M..,Elgamal, Walid H..,Mesbah, Mohamed I..,Abomarzoka, ElSayed A..,...&Abdelaal, Khaled.(2024).Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions.HELIYON,10(5).
MLA	Abd-El-Aty, Mohamed S.,et al."Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions".HELIYON 10.5(2024).