English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In Egypt, Zea mays is among the greatest essential cereal crops in terms of cultivated area or nutritional value. It is the third-largest cereal crop behind wheat and rice. Maize is a food source not only for human but also for animals, poultry, and used as a healthy forage crop (El-Rasoul et al., 2020). Zea mays as a summer cropis highly affected by the climate change thus, the applied irrigation amount is expected to increase by 10-19% in all Egypt governorates in 2040 (Ouda et al., 2016). Drought is among the most major abiotic stresses, which induces the most extreme financial damage in livestock and decreases agricultural output in arid and semi-arid areas (Marulanda et al. 2007). High competition for water supplies would need new energy-saving irrigation techniques and these techniques may sustain productive output rates in arid and semi-arid regions (Abu-hashim and Negm, 2018). Superabsorbent polymer (SAP), as a soil conditioner,enhances soil quality by reducing water leaching, thereby saving soil water for agronomic crops. Ekebafe et al. (2011) pointed out that hydrogels may hold enough amounts of water and elements and release them as needed by the plant, thereby enhancing T STUDY aimed to investigate the response of maize to supper absorbent polymer (SAP) and exopolysaccharides (EPS) producing bacteria under drought stress conditions at Panjar El -Soukkar region, Alexandria government, Egypt. The functional groups and heavy metal contents of SAP were determined. The swelling capacity of the polymer increased with increasing the hydrolysis time up to 30 min and the de-swelling water ratios of the polymer varied from 0.25 to 8 days. EPS-producing bacteria, Klebsiella oxytoca, Serratia marcescens, and Pseudomonas aeruginosa were selected and classified based on their phenotypic, biochemical, and also their molecular criteria.The EPS production by the selected isolates ranged from 0.85 to 1.24 g/100ml and the total activity of antioxidant of the extracted EPS ranged from 1.464 to 1.827%. The bacterial isolates could tolerate up to -2.24 MPa of water stress and their production of EPS increased with increasing drought stress levels. Different plant growth promoting parameters of selected isolates were evaluated. Two field experiments were conducted during 2018 and 2019 summer growing seasons. The obtained data revealed that drought stress had significant adverse effects on growth and yield parameters of maize plant, NPK uptake by grains, nutrient availability and microbial activities in soil. Seed bacterization of maize with EPS-producing bacterial isolates in combination with SAP improved all measured characters compared to PGPR inocula or SAP used alone. The findings suggested that applying superabsorbent polymer in combination with EPS-producing bacteria could improve tolerance of maize plant toward drought.

Effect of super absorbent polymer and bio fertilization on Maize productivity and soil fertility under drought stress conditions