Effect of soaking seeds in some organic solutions on wheat grown in sandy

Rashad, Rama T.

doi:10.21608/ejss.2019.17506.1311

Cited by 1 publication

(1 citation statement)

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“…SA is a plant hormone that belongs to phenol compounds that regulate the activation of biotic and abiotic stress defense systems (González-Villagra et al, 2022;El Refaey et al, 2022). In the presence of stress, SA is crucial for controlling the intake of nutrients, cell elongation, levels of photosynthetic pigment, and the activity of photosynthesis, all of which affect the growth and development of plants (Khan et al, 2022;Rashad, 2020). Plants can become more tolerant to abiotic stressors by increasing the efficiency of their metabolic processes with SA (González-Villagra et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Improved water use efficiency and yield of drip-irrigated pepper under full and deficit irrigation conditions

Mostafa,

Abd El-wahed,

Hamad

et al. 2024

Egypt.J. Soil Sci.

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N EGYPT, water scarcity is the main problem the agricultural sector faces. Salicylic acid (SA) as a plant growth regulator may help mitigate the adverse effects of deficit irrigation water on pepper plants. Sweet pepper (cv. S702 F1) plants subjected to deficit irrigation (DI 40% = 60% of crop evapotranspiration, ETc) regularly during growth stages produced decreases in plant height, total chlorophyll, fruit number per plant, fruit length, fruit diameter, fruit volume, fruit yield, fruit carotenoids, and total dry matter comparing with the full irrigation (FI= 100% of ETc). However, water use efficiency (WUE), proline, free amino acids, ascorbic acid, total sugars, total soluble solids (TSS), total phenols content (TPC), total flavonoids content (TFC), and nitrate content were enhanced under deficit irrigation conditions. The results showed that under FI or DI 40% with foliar application of SA at 1.0 mM was more effective than 0.5 and 1.5 mM in improving vegetative growth and yield parameters. However, FI produced the highest significant values of plant height, total chlorophyll, fruit yield, carotenoids, and total dry matter. Conversely, the pepper plant's ability to withstand DI 40% was enhanced by the 1.0 mM SA treatment, which resulted in the highest accumulation of ascorbic acid, total sugars, TSS, TPC, and TFC. Moreover, the application of SA significantly increased WUE and decreased fruit nitrate content. It could be concluded that the foliar application of SA can alleviate the detrimental effects of deficit irrigation on pepper plants.

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