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김용헌 ( Md Abdul Halim ),사동민 ( Mak Chanratana ),( Shamim Ahmed ),( Yongheon Kim ),( Tongmin Sa ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
Successful colonization of bio-inoculants face hostile environmental conditions like salinity in the rhizosphere of plant. The survivability and adaptation under stress is a major concern for bio-inoculants. Thus, the current study were focused on survivability improvement of the chitosan aggregated Methylobacterium oryzae CBMB20 and pant growth promotion (PGP) of tomato plant under salt stress. At different temperature (4, 30, 40 and 50℃) the capability of the bio-inoculant with either liquid or chitosan based formulation was observed for 3 months of storage and used to examine the effect on tomato plant under salt stress. Furthermore, the poly-β-hydroxybuterate (PHB) content, exopolysaccharide (EPS) production, biofilm formation, and microbial cell hydrophobicity as physiological parameter were studied. It was revealed that the aggregated exposed statistically significant over non-aggregated bioinoculants. In addition, to tolerate UV, heat, desiccation, low temperature, starvation, and H2O2 potentiality were higher for the aggregated M. oryzae CBMB20 than other. Particularly, chitosan immobilized aggregated M. oryzae CBMB20 exhibit 4 to 30℃ optimum storage temperature and 24.67, 36.65 and 59.53% reduction in cfu counts after 90 days of storage at temperatures 4, 30 and 40℃), respectively. Moreover, chitosan immobilized aggregated M. oryzae CBMB20 evinced by 1.9, 1.6 and 1.9-times seed germination, seedling vigor index and plant dry weight, consequently under salt. Hence, chitosan boost the lodging the aggregated bacterial cells that prompt the bio-inoculants survivability and salt stress adeptness in the rhizosphere which leads the growth and development of tomato plant.
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Noorul Shaiful Fitri ABDUL RAHMAN,Noor Apandi OSNIN,Rudiah MD HANAFIAH,Mohd Rahimi ABDUL HALIM,Shahriman ABDUL HAMID,Nur Hazwani KARIM 국제이네비해양경제학회 2019 International Journal of e-Navigation and Maritime Vol.13 No.1
The manner in which education will be delivered in the 21st-century has often been debated. Various literature has agreed that an interactive teaching and learning method is required in parallel with the emergence and development of cyber technology. The conventional method of teaching should be reconstituted to emphasize aspects associated with innovation and creativity in attracting the attention of students in learning. Despite the current Malaysian education emphasize the learning features that include 1) Creative thinking, 2) Critical thinking, 3) Collaboration, 4) Character and 5) Communication. However, 21st-century approach requires exposure, skills, and creativity to be implemented by the Malaysian educators. Therefore, the aim of this study is to propose a new maritime interactive teaching model towards a Sustainable Development Goals (SGDs) and industrial revolution 4.0. Three (3) secondary schools around Terengganu in Malaysia were chosen to participate in a pilot case study. The results of the study found that more than 90% of students now understand more about the maritime industry based on their acquired knowledge and education in this area. While, more than 70% of students described that this method of teaching is appealing. Maritime education innovative learning through an interactive learning model was successfully achieved based on the findings of this study, called the ‘Mariner’s Fantasy’. Additionally, through the inspirations of IR 4.0 and the Malaysia Education Development Plan, 2013-2025, the study has demonstrated the usefulness of the Maritime Education Innovative Learning (MEIL) program through an interactive learning method, in enhancing the delivery of maritime education by adopting an effective teaching-based approach.
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Madihah Halim,Ameyra Aman-Zuki,Syarifah Zulaikha Syed Ahmad,Abdullah Muhaimin Mohammad Din,Atikah Abdul Rahim,Mohamed Mazmira Mohd Masri,Badrul Munir Md. Zain,Salmah Yaakop 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.4
Parasitoid wasps (Hymenoptera) play a significant role in reducing the pest population of the bagworm species Metisa plana. This study presents the abundance and DNA barcoding information of eight parasitoid wasps species, Dolichogenidea metesae (47%), Brachymeria carinata (19%), Buysmania oxymora (12%), Goryphus bunoh (7%), Pediobius anomalus (5%), Eupelmus cotoxanthae (2%), Apanteles aluella (5%), Apanteles sp.1 (3%) and that emerged from M. plana collected from three highly infested oil palm plantations in Selangor (west), Perak (north) and Johor (south) in Peninsular Malaysia. Samples of infested M. plana were collected from the field and reared in a rearing room. The parasitoid wasp species D. metesae recorded the highest emergence numbers and the broadest presence in all the sampling sites. The relationships among the parasitoids species were estimated and visualized using Neighbor Joining (NJ) phylogenetic analyses with the Ceraphronidae family as an outgroup. The resulting NJ tree showed that the identified parasitoid wasps were successfully classified into specific species and supported with bootstraps values between 55% to 100%. This study provides important information on potential biological control agents for M. plana that may be useful for the Malaysian oil palm industry.
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Umair Ahmed,Abdul Halim Abdul Majid,Md Lazim Mohd Zin KINFORMS 2016 Management Review Vol.11 No.2
This conceptual paper sheds light on the concept of work engagement. Employees engaged in their work are bursting with energy, dedication and immersion in work. The article offers an overview of the concept of work engagement and the major gaps in its literatures, particularly in relation with developmental HRM (employee training and career development) practices. The evidences quoted in the review have indicated towards the critical significance of HRM practices on work engagement. Notably, the review also provides adequate support towards the potential moderating role of performance appraisal perceptions upon developmental HRM and work engagement relationships.
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Umair Ahmed,Md Lazim Mohd Zin,Abdul Halim Abdul Majid 한국유통과학회 2016 The Journal of Industrial Distribution & Business( Vol.7 No.3
Purpose - Usage of E-services is critical for businesses to maximize work efficiency and gain competitive advantage. The aim of the study is to explore how awareness of technology and e-services usage in an emerging economy in Pakistan. The studies aimed to explore as to what extent these factors can potentially motivate transport employees towards e-services; who are generally not aware about technology and hence also not confident in using it also. Research design, data, and methodology - Employees from the three transport subsidiary units from a large private company in Pakistan were sampled for the study. Through using self-administered technique, the questionnaires were distributed during the month of April, 2016 to 189 employees. A total of 150 responses were taken further for analysis where the study found a positive link between awareness of technology and e-services usage. Results - This study found positive relationship between intention to use and e-service usage among the employees of three subsidiary units. The paper has reported 30 percent variance explained by the predicting variables in relation with e-services usage. Conclusions - Employees could be motivated to use e-services and latest technology through enhancing their awareness about their respective importance and viability. Accordingly, organizations can foster employees’ intentions to use to enhance e-service usage.
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Selecting Tanker Steaming Speeds under Uncertainty: A Rule-Based Bayesian Reasoning Approach
N.S.F. ABDUL RAHMAN,R.MD. HANAFLAH,A.F. AHMAD NAJIB,W.M.Z. ABDUL HALIM 국제이네비해양경제학회 2015 International Journal of e-Navigation and Maritime Vol.2 No.1
In the tanker industry, there are a lot of uncertain conditions that tanker companies have to deal with.For example, the global financial crisis and economic recession, the increase of bunker fuel prices and global climate change. Such conditions have forced tanker companies to change tankers speed from full speed to slow speed, extra slow speed and super slow speed. Due to such conditions, the objective of this paper is to present a methodology for determining vessel speeds of tankers that minimize the cost of the vessels under such conditions. The four levels of vessel speed in the tanker industry will be investigated and will incorporate a number of uncertain conditions. This will be done by developing a scientific model using a rule-based Bayesian reasoning method. The proposed model has produced 96 rules that can be used as guidance in the decision making process. Such results help tanker companies to determine the appropriate vessel speed to be used in a dynamic operational environmental.
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( Poulami Chatterjee ),( Sandipan Samaddar ),( Md Abdul Halim ),강연경 ( Yeongyeong Kang ),사동민 ( Tongmin Sa ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
Plant growth and agriculture is largely affected by soil salinity. Increasing trend of salinity stress limits plant metabolism and development. This study was carried out to find out the effect of soil salinity on plant physiology and defense mechanism. As a result of abiotic stress and biotic stress plant emits higher amount of volatile organic compounds (VOC), which tries to help plant to survive under adverse environmental conditions, but this emission is detrimental to the environment. Furthermore, we studied the inoculation effect of halotolerant ACC deaminase-producing bacteria to control volatile emission, impact on photosynthetic machinery in rice plants under saline condition. In this study, we exposed IR29 (salt sensitive) and FL478 (moderately salt tolerant) rice plants to salt stress at different concentrations, such as 0, 50, 100 mM and compared the effect of salt stress on gas exchange attributes, ethylene emission, emission of biogenic volatile organic compounds, between these two rice cultivars. Ethylene is considered as a stress marker for plants. We observed that ethylene emission was markedly higher in salt sensitive rice cultivar, but recovered after Bioinoculation. Higher concentration of salt treatment remarkably reduced Photosynthesis, stomatal conductance to water vapour, and light-adopted photosystem II (PSII) quantum yield estimated by maximum chlorophyll fluorescence (Fv/Fm); IR29 is a known salt sensitive cultivar and FL478 is a moderately salt tolerant cultivar. A clear difference in their photosynthetic activities were observed in response to gas exchange parameters. 1-8-Cineole and δ3-Carene were highly emitted monoterpenes detected under high saline condition. Emission of sesquiterpenes namely, longifolene and α-caryophyllene were markedly higher after 10th day of salt exposure. However, the rate of emission was reduced after Bioinoculation and bacterial inoculation (RS16: Brevibacterium iodinum) in both the cultivars, has recovered rice plants from mild to severe stress.
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( Aritra Roy Choudhury ),( Mak Chanratana ),( Shamim Ahmed ),( Md Abdul Halim ),사동민 ( Tongmin Sa ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
The formulation of plant growth promoting bacteria as a potential bioinoculant to combat against various biotic and abiotic stresses have been shown to be beneficial for both plants and environment. The industrial application and market value of bioinoculants compared to conventional fertilizers are not high. The major limitations are low quality and the lack of applicable formulation for bioinoculants. These bioinoculants need proper carrier materials for delivery into the agricultural lands for their enhanced functionality, survivability and increase in their shelf life during storage. This study was conducted to compare the plant growth promoting effects of immobilized M. oryzae CBMB20 in chitosan and alginate beads on tomato plant under greenhouse conditions. The immobilized M. oryzae CBMB20 in various formulations were c ted in tomato (Solanum lycopersicum) seeds using 1% (w/v) carboxymethyl cellulose as an adhesive. Various physiological properties of plants such as plant length, dry weight of root and shoot, etc were measured after 15 days of transplanting. The survivability of M. oryzae CBMB20 and degradation of carrier material in soil was checked in regular intervals during the growing stage of tomato plant. The application of chitosan immobilized M. oryzae CBMB20 indicated up to 1.3 fold increase in the shoot and root lengths as well as plant dry weight of tomato plant under greenhouse condition compared to other treatments. The chitosan treated tomato seeds showed significant increase in germination percentage and chlorophyll content. Immobilized M. oryzae CBMB20 showed 1.5 fold higher survivability in tomato rhizosphere soil compared to free cells with around 4.35 log CFU g<sup>-1</sup> of soil for chitosan at 21 DAS. The alginate beads got fully degraded whereas there was partial degradation of chitosan beads after 30 days. Chitosan was able to keep a considerable survivability of M. oryzae CBMB20 for over 20 days. These observations confer that chitosan is more suitable carrier material for immobilizing M. oryzae CBMB20. Furthermore, such formulation holds good promise to be utilized with other PGPB strains and crops for potential large scale application in agricultural fields.
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( Shamim Ahmed ),김기윤 ( Kiyoon Kim ),( Md Abdul Halim ),( Aritra Roy Choudhury ),사동민 ( Tongmin Sa ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
Global climate change (GCC) has the potential of causing sea-level rise (SLR), increasing coastal economic activities and the flow of freshwater from rivers into the sea. SLR and precipitation changes will have impact on soil salinization and agriculture production. Salt affected soils are distributed in 120 countries covering 953 million hectare and reduced productivity to 7-8% at the global scale. Of the current 230 million ha of irrigated land, 45 million ha are salt-affected (19.5%) and of the 1,500 million ha under dry land agriculture, 32 million are salt-affected to varying degrees (2.1%). In SAARC (South Asian Association for Regional Cooperation) region, salinity prevails as a major issue, for instance, in Bangladesh, the 53% of coastal region covers almost 29,000 km<sup>2</sup> or about 20% of land area and more than 30% of the cultivable lands. Whereas 6.72, 6.70 and 0.54 million hectare agricultural land are inundated by salinity in India, Pakistan and Sri-Lanka consequently, which is 7% of total agricultural land in those countries. Microorganisms can play a significant role in this respect, such as tolerance to saline conditions, genetic diversity and synthesis of compatible solutes, production of plant growth promoting hormones, bio-control potential, and interaction with crop plants trends to reduce the negative impact of global warming. Moreover, biofertilizers can make available a wide range of nutrients to plants and increase soil organic matter. Understanding endophytic interactions are the least studied out of other microbe-plant interactions. So that, studies on plant-associated bacteria, their colonization inside the host plant and survival mechanism with competence are of major importance. Endophytic bacterial and their colonizations in host plant can enhance plant growth and improve the nutrition of plants through nitrogen fixation, phosphorus solubolization, enzymatic activities, etc. Hypothesis may establish that, microbial inoculant can be survive and abundantly colonize inside the plant from rhizosphere to root, move on xylem vassel through vegetative parts of the plant via vascular connections from the maternal plant and transmit them on next generation seed containing essential PGP characteristics.
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