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Plant Growth Promoting Rhizobacteria Having 1-Aminocyclopropane-1-Carboxylic Acid Deaminase to Induce Salt Tolerance in Sunflower (<i>Helianthus annus L.</i>)

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Natural Resources 2015年第6期6卷 391-397页

作者： Muhammad Zahid Kiani Arshad Ali Tariq Sultan Rizwan Ahmad syed ishtiaq hydar PARC Institute of Advanced Studies in Agriculture Islamabad Pakistan Land Resources Research Institute National Agricultural Research Center Islamabad Pakistan

Soil salinity badly affects agriculture productivity through accumulation of salts in upper layers of soils. The harmful effects of salts in arable lands have influenced modern as well as ancient civilizations. A pot study was carried out to test the performance of two PGPR isolates (KS 8, KS 28) on sunflower (SMH-0917) under different salinity levels (8, 10 and 12 dS·m-1). These salinity levels were developed by adding calculated amount of salts (NaCl, Na2SO4, CaCl2 and MgSO4) with ratio of 3:4:2:1. The bacterial strains KS 8 and KS 28 were applied separately in two treatments while third treatment was co-inoculation (KS mix). Completely randomized experimental design (CRD) was used and data were collected at flowering stage about pre-decided plant growth parameters (plant height, shoot dry weight and root dry weight). The bacterial isolate KS 8 showed an increase of 26, 102% and 83% in plant height, shoot dry weight and root dry weight at EC 8 dS·m-1, while this improvement was 67%, 163% and 296% at EC 10 dS·m-1, however an increase of 100%, 74% and 382% was recorded over control respectively at EC 12 dS·m-1. Similarly isolate KS 28 exhibited an increase of 14%, 69% and 54% in plant height;shoot dry weight and root dry weight at EC 8 dS·m-1, whereas this improvement was 56%, 163% and 188% at EC 10 dS·m-1, while an increase of 60%, 41% and 282% was registered respectively over control at EC 12 dS·m-1. The increase due to mixture treatments was 4%, 41% and 16% in plant height, shoot dry weight and root dry weight at EC 8 dS·m-1, while an increase of 33%, 57% and 100% at EC 10 dS·m-1, whereas an improvement of 53%, 33% and 164% respectively was noted at EC 12 dS·m-1 over un-inoculated. The isolate KS 8 performed better than KS 28 and mixture treatment. These two PGPR strains could be used to mitigate the adverse impact caused by salinity stress on sunflower.

关键词： Plant Growth Promoting Rhizobacteria Strains 1-Aminocyclopropane-1-Carboxylic Acid (ACC) Deaminase Salinity

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Design of Latency-Aware IoT Modules in Heterogeneous Fog-Cloud Computing Networks

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Computers, Materials & Continua 2022年第3期70卷 6057-6072页

作者： syed Rizwan Hassan ishtiaq Ahmad Jamel Nebhen Ateeq Ur Rehman Muhammad Shafiq Jin-Ghoo Choi Department of Electrical Engineering The University of LahoreLahore54000Pakistan College of Computer Engineering and Sciences Prince Sattam Bin Abdulaziz UniversityAlkharj11942Saudi Arabia Department of Electrical Engineering Government College UniversityLahore54000Pakistan Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

The modern paradigm of the Internet of Things(IoT)has led to a significant increase in demand for latency-sensitive applications in Fog-based cloud ***,such applications cannot meet strict quality of service(QoS)*** large-scale deployment of IoT requires more effective use of network infrastructure to ensure QoS when processing big ***,cloud-centric IoT application deployment involves different modules running on terminal devices and cloud *** devices with different computing capabilities must process the data generated by the end device,so deploying latency-sensitive applications in a heterogeneous fog computing environment is a difficult *** addition,when there is an inconsistent connection delay between the fog and the terminal device,the deployment of such applications becomes more *** this article,we propose an algorithm that can effectively place application modules on network nodes while considering connection delay,processing power,and sensing data *** with traditional cloud computing deployment,we conducted simulations in iFogSim to confirm the effectiveness of the *** simulation results verify the effectiveness of the proposed algorithm in terms of end-to-end delay and network ***,latency and execution time is insensitive to the number of sensors.

关键词： IoT fog-cloud computing architecture module placement latency sensitive application resource aware placement

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Flower Pollination Heuristics for Nonlinear Active Noise Control Systems

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Computers, Materials & Continua 2021年第4期67卷 815-834页

作者： Wasim Ullah Khan Yigang He Muhammad Asif Zahoor Raja Naveed ishtiaq Chaudhary Zeshan Aslam Khan syed Muslim Shah School of Electrical Engineering and Automation Wuhan UniversityWuhan430072China Future Technology Research Center National Yunlin University of Science and TechnologyYunlin64002Taiwan Department of Electrical Engineering International Islamic UniversityIslamabadPakistan Department of Electrical Engineering Capital University of Science and TechnologyIslamabadPakistan

In this paper,a novel design of the flower pollination algorithm is presented for model identification problems in nonlinear active noise control *** recently introduced flower pollination based heuristics is implemented to minimize the mean squared error based merit/cost function representing the scenarios of active noise control system with linear/nonlinear and primary/secondary paths based on the sinusoidal signal,random and complex random signals as noise *** flower pollination heuristics based active noise controllers are formulated through exploitation of nonlinear filtering with Volterra *** comparative study on statistical observations in terms of accuracy,convergence and complexity measures demonstrates that the proposed meta-heuristic of flower pollination algorithm is reliable,accurate,stable as well as robust for active noise control *** accuracy of the proposed nature inspired computing of flower pollination is in good agreement with the state of the art counterpart solvers based on variants of genetic algorithms,particle swarm optimization,backtracking search optimization algorithm,fireworks optimization algorithm along with their memetic combination with local search ***,the central tendency and variation based statistical indices further validate the consistency and reliability of the proposed scheme mimic the mathematical model for the process of flower pollination systems.

关键词： Active noise control computational heuristics volterra filtering flower pollination algorithm

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Comparison of Wheat Planting Methods and Residue Incorporation Under Saline-Sodic Soil

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Journal of Life Sciences 2011年第12期5卷 1042-1045页

作者： Muhammad Arshadullah Massomma Hassan Arshad Ali syed ishtiaq Hyder Land Resources Research Institute National Agricultural Research Center Islamabad 45500 Pakistan

The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, Punjab Province in 2007-2008. Randomized Complete Block Design （RCBD） with three replications was used having treatments： control （broadcast）, zero till wheat plantation, wheat plantation using happy seeder and wheat plantation on raised beds. It was observed that tillering was pretty higher （141 and 139 m2） under raised bed as well as happy seeder plantation as compared to zero tilled wheat and broadcast technique. A significant relation was detected among maximum straw and grain yield （4,898 and 1,752 kg-ha1） in raised bed followed by happy seeder planting method. The lowest grain yield was recorded in the broadcast method. Maximum net revenue earned by raised bed planting method （39,908 PKR） followed by happy seeder methodology （37,533 PKR）. The overall study suggests that raised bed and happy seeder wheat plantation are the superior planting methods.

关键词： Wheat planting methods crop residue saline-sodic.

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Optimizing Yield and Nutrients Content in Tomato by Vermicompost Application under Greenhouse Conditions

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Natural Resources 2015年第7期6卷 457-464页

作者： syed ishtiaq Hyder Muhammad Farooq Tariq Sultan Arshad Ali Muhammad Ali Muhammad Zahid Kiani Shahbaz Ahmad Tausif Tabssam National Agricultural Research Centre (NARC) Islamabad Pakistan

Optimizing yield and nutrients content in crop production is the high time demand of arable farming. Vermicompost furnishes one of the most promising alternatives to costly chemical fertilizer. Therefore, a greenhouse experiment was conducted at NARC, Islamabad, to investigate the effect of different levels of vermicompost [having C/N=15/1 and 14 Plant Growth Promoting Rhizobacteria (PGPR)] on growth, yield and nutrients content in hybrid tomato (National Tunnel Tomato-04-08) under greenhouse conditions during Rabi 2015. The data revealed that different rates (0.5 t·ha-1, 1 t·ha-1, 1.5 t·ha-1 and 2 t·ha-1) of vermicompost produced varied and significant (P -1) at the application of 2.0 t vermicompost ha-1 followed by 3.226 t·ha-1 where vermicompost was applied @ 1.5 t·ha-1. N, P and K content in tomato fruit and plant increased significantly with the application of increasing levels of vermicompost. The highest content of N (3.7%), P (0.67%), K (5.17%) in tomato fruit and N (3.4%), P (0.32%), K (3.2%) in tomato plant respectively were registered with soil application of vermicompost @ 2.0 t·ha-1. This study confirms that the vermicompost has a tremendous potential of plant nutrients supply for sustainable crop production.

关键词： Vermicompost PGPR Tomato Yield Nutrients and Humic Acid

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