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Home > Effect of Toxic Gases and Seasonal Variation in Plants Leaves and Stomata, a Case Study of Quetta City

Effect of Toxic Gases and Seasonal Variation in Plants Leaves and Stomata, a Case Study of Quetta City

Thesis Info

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External Link

Author

Khan, Saadullah

Program

PhD

Institute

University of Balochistan

City

Quetta

Province

Balochistan

Country

Pakistan

Thesis Completing Year

2013

Thesis Completion Status

Completed

Subject

Environmental Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/12786/1/Saadullah%20Khan%20Laghari_Botany_2013_UoBaloch.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676724663704

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Ambient status of Quetta city was estimated by recorded the contents of air pollutants viz. CO, NO2, SO2, SPM10μm and SPM2.5μm from its atmosphere. Statistical analysis using t-test indicated that all the seasonally investigated air pollutants were significant high at Quetta city (polluted sites) than control sites at the significant level of P<0.01. The concentration of all the pollutants start increasing slightly from spring to summer and reached to its maximum during autumn and lowest was found in the winter. Correlation Coefficient and Linear relationship indicated that all the air pollutants were highly, positively and significantly correlated with the number of vehicles movement. Air Quality Index of Quetta city revealed that the atmosphere of city is harmful for people of sensitive group and particularly the contents of particulate matters (SPM10μm and SPM2.5μm) are more than permissible level. Statistical analysis of all estimated heavy metals (Pb, Zn, Fe, Cu, Cd and Sb) exhibited that these were found slightly (P<0.05) to highly (P<0.01) significant high from the polluted sites plant species of Quetta city as compare to the control sites. Air pollution effects on biochemical and physiological attributes of plants leaves was determined by analysis of ascorbic acid content (AAC), total leaf chlorophyll content (TLC), leaf-extract pH and leaf relative water content (RWC). Statistical analysis indicated that all measured attributes in plant leaf showed slightly (P<0.05) to highly (P<0.01) significant variation between polluted and non-polluted sites. Air Pollution Tolerance Index (APTI) of different plant species exhibited that the overall APTI was significant in polluted site plants than those of non-polluted sites. On the basis of APTI, out of 14 plant species only two species, Eucalyptus tereticornis L. and Pinus halepensis Miller. were found to be highly Tolerant (T), other five plants i.e. Fraxinus excelsior L., Robinia pseudoacacia L., Punica granatum L., Prunus armeniaca L. and Elaeagnus angustifolia L. were moderately tolerant (MT) while other five species viz. Pistacia vera L., Rosa indica L., Melia azadirach L., Morus nigra L. and Ficus carica L. were Intermediately tolerant (IT), where as remaining two species Morus alba L. and Vitis vinifera L. were Sensitive (S). Effect of air pollution on morphological characteristics of leaves in different com of leaves in different com of leaves in different com of leaves in different com of leaves in different com of leaves in different com of leaves in different comof leaves in different comof leaves in different com of leaves in different com of leaves in different comof leaves in different com mon plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by plants species growing along the road side of Quetta city were calculated by measuring the measuring the measuring themeasuring themeasuring the foliage length, width, area and petiole length. All these investigated parameters showed showed significant reduction in the polluted sites plant species. The results also exhibited that there was significant variation in the growth of morphological attributes from season to season, specie to specie and site to site (polluted and non-polluted). The effect of air pollution on anatomical characteristics of leaf epidermis revealed that total average number of epidermal cells/mm2 and stomata/mm2 at adaxial and abaxial side shown non-significant variation among polluted and non-polluted sites throughout the year. However there was variation from specie to species and on adaxial & abaxial sides. The number of closed, abnormal/injured and open stomata/mm2, in different investigated plant species were slightly to highly significant (P<0.05 & 0.01) different between polluted and non-polluted sites. Further that highest number of closed and abnormal/injured stomata/mm2 was recorded during autumn from polluted site and maximum number of open stomatas was found during spring from non-polluted site plant species.
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انا

حالات کی اک ضرب نے دیکھو
ایسی رُت بھی کھولی تھی

کہ ہم تم جو یکجاں بہت تھے
دور بہت جا بیٹھے تھے

دل کو پر گماں تھا یہ
غلط نہیں ہے تو پر تجھ سے

اس رُت میں غلط ہو رہا ہے
گردش کا یہ کھیل ہے شاید

دل کی ان زمینوں پہ
جو فاصلے بو رہا ہے

اس سب میں تو بھی تھک گئی تھی
چلتے چلتے رُک گئی تھی

میں بھی ٹھیک تھا اپنے تئیں
رُک گیا تھا میں بھی وئیں

پر تجھ سے یوں بچھڑنے کو
میں نے بہتر سمجھا مرنے کو

اُٹھا میں اپنے کمرے بند سے
تیرے پیروں میں انا دھرنے کو
میں آیا سب ٹھیک کرنے کو

حديث أُمرت أن أقاتل الناس حتى يشهدوا: دراسة في حرية الاعتقاد والفعل

One of the greatest epistemological accomplishments that Muslims have achieved is the establishment of an accurate system of deriving rulings from Sharia texts, which is known as ‘principles of jurisprudence’ or Usūl ul Fiq. Among the significant contents of these subject is dealing with the text which apparently contradicts to other basic principles of Islam or objectives of Sharī’ah. The job of a jurist becomes more significant and difficult in devising the judgments and interpreting the texts as reported by the fundamentalists: inquiring the validity of the texts, finding its weakness with respect to strong argument, and comparing them in terms of authenticity. Other times, he tries to reconcile between the contradictions by keeping in view a meaning consistent with Sharī’ah. The application of these principles gave birth to the variety and diversity of opinions on account of Ijtihād. Keeping in view the above preamble, the author addressed one of the famous Ahadith of Holy Prophet PBUH: “I have been ordered to fight against the people until they testify.”. This saying of Holy Prophet PBUH attracted Muslim thinkers in past and present to address its meanings and application. Likewise some related debate has emerged in the modern period as regards whether the term "people" in the hadith is used generically or specifically - forcing these people to Islam after defeating? The author in this context, addressed the terminology of hadith, its apparent contradiction with the principles of Sharī’ah, legal maxims, provisions, diverse interpretations, and added his own opinion. Descriptive and qualitative research approach was employed for the collection, demonstration and analysis of data.

Analysis of Key Factors Affecting Kaizen and Development of a Framework for its Effective Implementation in Automobile Sector of Pakistan

There are a number of philosophies, tools and techniques available for continuous improvement of performance of the organizations. Kaizen is one of the Japanese management philosophies, which can be effectively implemented for continuous improvement of performance, work area, product quality, organizational internal processes and development of human resource. Primarily, Kaizen was developed and implemented by automobile sector organizations of Japan. Most of the automobile organizations of Pakistan are Japan based and have tremendous contribution in economic development of the country. Therefore this sector was selected for measuring perceptions of respondents regarding different factors affecting Kaizen and its outcomes. The theoretical framework for effective implementation of Kaizen was developed through identification of key factors from literature review and survey of automobile organizations and discussion with proponents of Kaizen in Pakistan. In this research, Top Management Commitment, Organization Kaizen Culture, Personal Initiative of Employees, Rewards & Recognition, Training of Workers and Kaizen Event & Team Design were selected as independent variables of Kaizen. Variables such as Human Resource Development, Work Area Improvement, Product Quality Improvement, Organization Internal Process Improvement and Overall Success of Kaizen in an organization were incorporated as outcome variables of Kaizen in theoretical framework. In this research, survey technique was adopted for the collection of data for empirical analysis. The existing questionnaire found in the literature was amended, and this modified questionnaire consisting of two parts was used in this research. Construct validity and reliability of survey scale items were checked through Factor Analysis. Survey was conducted in two phases. In first phase, Part I of survey questionnaire was forwarded to 455 automobile sector organization including member organizations of Pakistan Automobile Manufacturing Association (PAMA), Pakistan Association of Automotive Parts & Accessories Manufacturers (PAPAM) and Association of Pakistan’s Motorcycle Assembler (APMA). Out of those 455 organizations only 216 organizations responded back showing response rate of 47.5%. Kaizen tools and techniques implementation status was found good / satisfactory in 97 organizations. In second phase of survey, perception of individual respondents regarding statement of survey scale xxxiii items related to independent, process and dependent variables of Kaizen was measured from selected organizations of Phase-1 of the survey. A total of 200 respondents from 61 different organizations including respondents from top management, middle management and shop floor workers working as Kaizen team members and team leaders responded back to survey questionnaire. During face validation and data screening through descriptive statistics, 27 survey responses from 7 different organizations were rejected due to incompleteness or biasness. Finally 173 survey responses from 54 organizations, implementing Kaizen tools and techniques for continuous improvement were empirically analyzed. The relationship among independent and dependent variables was determined through statistical analysis of data collected through measure of perceptions of the respondents. Pearson Correlation Test, ANOVA and Multiple Linear Regression Analysis were applied to confirm the proposed theoretical research framework. Results of statistical analysis indicate that critical factors such as Top Management Commitment, Organization Kaizen Culture, Personal Initiative, Reward & Recognition, Training of workers and Kaizen Event & Team Design have medium to strong positive correlation having Pearson Correlation Coefficient values ranging from 0.413 to 0.791 with outcome variables of Kaizen. After confirmation of all pre-requisites of Multiple Linear Regression Analysis from the data, regression model for each outcome variable of Kaizen was developed. The results indicate that model developed for outcome variable Human Resource Development account for 76.7% variation in it due to change in independent variables such as Top Management Commitment, Organization Kaizen Culture, Rewards & Recognition and Training of Workers having standardized beta coefficient values 0.432, 0.206, 0.242 and 0.269 respectively. The regression model developed for Work Area Improvement account for 72% variation in outcome variable of Kaizen “Work Area Improvement” due to independent variables such as Organization Kaizen Culture, Rewards & Recognition and Training of Workers having beta coefficient values, 0.251, 0.315 and 0.549 respectively. Similarly the third regression model developed for Product Quality Improvement accounts for 72.3% variation in it, contributed by three independent variables such as Top Management Commitment, Organization Kaizen Culture, and Training of Workers having beta coefficient values, 0.428, 0.338 and 0.350 respectively. Fourth model accounts for 75.5% variations in Organizational Internal Process Improvement, contributed by five independent variables such as Organization Kaizen Culture, Rewards & Recognition, Training of xxxiv Workers, Personal Initiative of employees and Kaizen Event & Team Design having beta coefficient values, 0.220, 0.255, 0.221, 0.455 and 0.210 respectively. Finally, 69.2% variations in Overall Success of Kaizen were explained by four independent variables of Kaizen such as Top Management Commitment, Personal Initiative of employees, Rewards & Recognitions and Training of Workers having beta coefficient values, 0.281, 0.228, 0.219, and 0.361 respectively. The results of mediation analysis indicate that process factors of Kaizen partially mediate the relationship between independent variables and overall success of Kaizen in an organization. The results of this study are in line with the research carried out on Kaizen event effectiveness in the UK. The framework for effective implementation of Kaizen was developed by incorporating all independent variables (input factors) having medium to strong correlation with outcome factors and has significant contribution in regression model developed for different outcome variables of Kaizen. This research study is limited to automobile sector organizations of Pakistan, however, in future the scope of this research can be widened to other sectors as well. Secondly, in this study the relationship among 15 different variables (independent, process and dependent variables) of Kaizen has been analyzed. The relationship among other organizational factors, internal as well as external affecting Kaizen may be identified through empirical analysis in future research work.