Physio-biochemical and Agronomic Response of Ascorbic Acid Treated Sunflower (Helianthus Annuus) Grown at Different Sowing Dates and Under Various Irrigation Regimes

Saudy, Hani Saber; El-Bially, M. E.; El-Metwally, I. M.; Shahin, Mostafa G.

doi:10.1007/s10343-020-00535-1

Cited by 35 publications

(12 citation statements)

References 36 publications

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“…Owing to the relationship between the plant biochemical compounds and deficit water, drought stress led to degradation of photosynthesis pigments (chlorophylls and carotenoids), as well as accumulation of proline (Table 3). Such findings are in accordance with those recorded by Manivannan et al (2007) and Saudy et al (2021) who reported that subjecting sunflower plants to water deficit caused decreases in total chlorophyll and carotenoids and increases proline content in leaves. During drought, reactive oxygen species (ROS) accumulate, which are toxic at elevated levels, due to reduced electron transport chain activity (Hasanuzzaman et al 2020).…”

Section: Discussionsupporting

confidence: 93%

Salicylic Acid as a Tolerance Inducer of Drought Stress on Sunflower Grown in Sandy Soil

et al. 2022

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Agricultural water rationalization expressed in irrigating the plants below their requirements became a significant strategy in crop water management. However, reduction in crop productivity under low water supply is realized. Therefore, the current study aimed to diminish sunflower yield losses associated with deficit irrigation using salicylic acid (SA). During two seasons of 2019 and 2020 at El Nubaria region, El Behaira Governorate, Egypt, combinations of three irrigation regimes (100, 85 and 70% of crop evapotranspiration, denoted WR100%, WR85%, and WR70%, respectively), and three levels of SA (0.0, 0.5, and 1 mM. abbreviated as SA0.0, SA0.5, and SA1.0, respectively) on sunflower plants performance were evaluated. Treatments were arranged in a strip–plot design with three replicates. Findings revealed that treated sunflower plants with WR100% × SA1.0 contained the highest amounts of total chlorophyll and carotenoids as well as the lowest proline content. Seed yield of WR100% × SA1.0 treatment was higher than that of WR70% × SA0.0 by 109.7% in the first season and 125.9% in the second one. As averages of the two seasons, SA0.5 and SA1.0 lowered the reductions in seed yield from 21.0% to 15.8 and 14.4% as well as 46.2% to 40.8 and 40.1% under WR85% and WR70%, respectively, compared to the farmer common practice (WR100% × SA0.0). WR100% × SA1.0 for iodine value as well as WR100% × SA1.0 and WR100% × SA0.5 for seed oil % were recorded the highest. Application of WR100% × SA1.0 and WR100% × SA0.5 were the effective combinations for ameliorating water use efficiency. In conclusion, involving salicylic acid in irrigation programs of sunflower became a decisive action to save water and alleviate the yield losses resulting from drought stress.

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Section: Discussionsupporting

confidence: 93%

Salicylic Acid as a Tolerance Inducer of Drought Stress on Sunflower Grown in Sandy Soil

et al. 2022

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“…Water is essential for maintaining the catalytically active state of soil enzymes (Jiang and Zhang 2002), since disturbance in the homeostasis of soil can occur because of drought (Kim et al 2008). Additionally, drought had negative impacts on plant physiological and growth status of plant crop and eventually resulted in low economic yield (Saudy et al 2021). Therefore, the noticeable reductions in weight of ear, weight of 100 kernels, and kernel yield of corn were obtained because of deficit water, i.e.…”

Section: Discussionmentioning

confidence: 99%

Changes in Calcareous Soil Activity, Nutrient Availability, and Corn Productivity Due to The Integrated Effect of Straw Mulch and Irrigation Regimes

Mubarak

Salem

Kenawey

et al. 2021

J Soil Sci Plant Nutr

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Sustainable agricultural production is mainly attributed to healthy soils. Calcareous soils, especially in arid and semiarid areas, suffer from low organic matter and nutrient availability. Low organic matter could degrade soil with reducing the crop productivity. Thus, the present study aimed to assess the integrated effect of soil mulch and irrigation on soil activity, nutrient availability, and potentiality of corn yield under calcareous soil conditions. In a calcareous soil, two mulching soil treatments (mulch and non-mulch) as well as three irrigation regimes, applied as ratio of crop evapotranspiration (60, 80, and 100%, denoted I60, I80, and I100, respectively), were arranged in a strip plot design based on completely randomized block arrangement using 3 replicates. Mulching soil plus irrigation by I80 achieved the maximum increases in organic carbon, organic matter, and soil activity. Higher values of NH 4 + -N form were detected with non-mulch and irrigation by I100 or I60. Lower Zn content was obtained in soil due to mulch or non-mulch plus irrigation I100. With lowering irrigation level by 20% (I80) and by application of mulch, the increases in weight of ear, weight of 100 kernels, and kernel yield of corn amounted to 5.4, 4.6, and 16.1%, respectively. Results from the present study conclude that adoption of soil mulching in corn production system plus moderate irrigation (80% of crop evapotranspiration) is considered a promising management practice for amending calcareous soils, saving irrigation water, and sustaining/boosting soil productivity in arid zones.

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“…Stomatal closure primarily causes a decline in the photosynthesis rate (Mahajan and Tuteja 2005). Recent studies confirmed the adverse impacts of drought on crop growth and yields (Saudy and El-Metwally 2019;Saudy et al 2020;Saudy et al 2021). Contrariwise, supplying soybean plants with adequate water requirement might enhance the plant to absorb a larger quantity of nutrients, which leads to increased vegetative growth of plants and increase the plant›s ability to intercept the radiation, hence increase the rate of photosynthesis (Tayel andSabreen 2011, Gkaswa et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Efficacy of benzyladenine for compensating the reduction in soybean productivity under low water supply

Saudy

El-Metwally

Abdelhamid

2021

IJAm

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Undoubtedly, drought is a negative consequence of climate change. Farmers have to deal with this issue and may be forced to irrigate their crops with less water than required, however reduction in productivity is anticipated. Thus, two–year field trials were conducted to assess the impact of irrigation regimes (60, 80 and 100% of crop evapotranspiration, denoted ET60, ET80, and ET100, respectively) and benzyladenine rates (0, 50, 100, 150 and 200 mg L−1, symbolized as BA0, BA50, BA100, BA150, BA200, respectively) on soybean. Findings clarified that the maximum increases in plant height and net assimilation rate were obtained with the interactions of ET100 or ET80 x BA200 or BA150 in both seasons. ET80 x BA200 (in both seasons) and ET100 x BA150 (in the first season) were as similar as ET100 x BA200 for enhancing pods number plant−1. Irrigation water use efficiency progressively increased with decreasing irrigation water amount and increasing benzyladenine rate. In conclusion, the reduction in seed yield due to lowering water supply up to 80% of crop evapotranspiration (with saving 20% of irrigation water) could be compensated using benzyladenine, 150 mg L−1, thus it should be involved in soybean irrigation programs.

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Physio-biochemical and Agronomic Response of Ascorbic Acid Treated Sunflower (Helianthus Annuus) Grown at Different Sowing Dates and Under Various Irrigation Regimes

Cited by 35 publications

References 36 publications

Salicylic Acid as a Tolerance Inducer of Drought Stress on Sunflower Grown in Sandy Soil

Salicylic Acid as a Tolerance Inducer of Drought Stress on Sunflower Grown in Sandy Soil

Changes in Calcareous Soil Activity, Nutrient Availability, and Corn Productivity Due to The Integrated Effect of Straw Mulch and Irrigation Regimes

Efficacy of benzyladenine for compensating the reduction in soybean productivity under low water supply

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