scholarly journals APTI (AIR POLLUTION TOLERANCE INDEX) OF TREES IN LOHAGAON AREA IN PUNE CITY IN DIFFERENT SEASONS

2020 ◽  
pp. 44-49
Author(s):  
Erum F H Kazi ◽  
Dr. Satish Kulkarni
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Water Content ◽  
Relative Water Content ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Mango Tree ◽  
Relative Water ◽  
Pm 10

Air Pollution is having severe impact on Roadside trees of Lohegaon area. Plant samples were collected in and around Airport area. It was found that concentration of PM 10 was found to be highest in all seasons studied and had impact on trees. Plant studied were Indian Rosewood , Tamarind tree, Mango tree, Rain tree, Neem tree, Peepal tree. p H was found to be highest in Mango tree, Relative water content (RWC) was found to highest in Tamarind tree, Total Chlorophyll content in Mango tree, Ascorbic acid was found to be highest in Peepal tree. APTI was found to be highest in Peepal and lowest in Tamarind tree KEYWORDS: Air Pollutants, APTI of plants, Total Chlorophyll, Ascorbic acid, p H of leaf Relative water Content ( RWC)

scholarly journals STUDY OF IMPACT OF AIR POLLUTION ON PLANTS BY ESTIMATION OF APTI OF CERTAIN TREES IN KATRAJ AREA IN PUNE CITY

2020 ◽  
pp. 39-43
Author(s):  
Erum F H Kazi ◽  
Dr. Satish Kulkarni
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Particulate Matter ◽  
Water Content ◽  
Relative Water Content ◽  
Air Pollutants ◽  
Total Chlorophyll ◽  
Mango Tree ◽  
Relative Water ◽  
Leaf Relative Water Content

Air pollution is one of major concerns in Pune City currently. Study highlights increase in Particulate matter from Vehicular sources & Urbanization in Karaj area is having harmful impact on the trees in the area. Leaf of Plant species such as Peepal( Ficusreligiosa),, Tamarind(Tamarindusindica), Rain tree( Samaneasaman), Ashoka( Saracaasoca), Manago( Mangiferaindica), Almond( Terminaliacatappa) , Banyan tree(Ficusbenghalensis) were selected and it was found that Ashoka( Saracaasoca), Mango tree( Mangiferaindica) showed Intermediate APTI whereas Peepal, Tamarind, Rain tree, Almond, Banyan tree were found to be Sensitive to pollution. KEYWORDS: Air Pollutants, APTI of plants, Total Chlorophyll, Ascorbic acid, p H of leaf, Relative water Content ( RWC)

scholarly journals Study on Spatial and Seasonal Variation in APTI of Tree Species along Roads of Shivalik Foothills in Himachal Pradesh

2021 ◽  
Vol 12 (3) ◽  
pp. 247-254
Author(s):  
Anuja Bhardwaj ◽  
◽  
R. K. Aggarwal ◽  
S. K. Bhardwaj ◽  
◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Water Content ◽  
Relative Water Content ◽  
Leaf Extract ◽  
Monsoon Season ◽  
Mangifera Indica ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Relative Water

The present study was conducted during the year 2018-2019 to determine the impact of road on Air Pollution Tolerance Index (APTI) of plants growing along the road. A comparative study was done between three roads viz., National highway, State highway and Link Road. Among three roads, link road can be considered as control because vehicular emissions were minimal or non-existent. Three plants (Dalbergia sisso, Mangifera indica and Ficus palmata) were selected as per their uniform presence along all three roads. Four biochemical parameters viz., ascorbic acid, total chlorophyll, leaf extract pH and relative water content were used to calculate the air pollution tolerance index. Season wise maximum ascorbic acid, leaf extract pH and relative water content was observed during post monsoon season whereas total chlorophyll content was observed during pre monsoon season. The APTI of the selected plant species ranged from 8.23 to 10.76 during pre-monsoon and 9.03 to 11.09 during post-monsoon. Anticipated Performance Index (API) was in order of Mangifera indica with highest API grade (6) and it was excellent among plants followed by Dalbergia sisso (5) in very good and Ficus palmata (3) in moderate. Student t-test analysis of seasonal variation of biochemical parameters in leaf of selected tree species was carried out and it was observed that there was significant seasonal effect on mean values of ascorbic acid content and APTI whereas there was no impact of seasons on total chlorophyll content, leaf extract pH and relative water content.

scholarly journals AIR POLLUTION TOLERANCE INDEX OF WHEAT AND RICE IN THE PROXIMITY OF GAS BASED POWER PLANT

2021 ◽  
Vol 9 (6) ◽  
pp. 791-804
Author(s):  
Priya Choudhary ◽  
Shakeel Ahmad Khan ◽  
Ambrina Sardar Khan ◽  
Sandeep Kumar ◽  
Lal Chand Malav
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Power Plant ◽  
Water Content ◽  
Chlorophyll Content ◽  
Relative Water Content ◽  
Air Pollutants ◽  
Tolerance Index ◽  
Relative Water ◽  
Polluted Sites

The study aimed to identify the tolerance level of rice and wheat due to air pollutants around the gas-based power plant. Ten sites were selected around 10km radius of gas based power plant. Major air pollutants like NOx, SOx, ozone, and PM10 were monitored in ten sites during the growth of rice and wheat. The Air Quality Index (AQI) of villages falls mostly in the category of moderately polluted sites. Air Pollution Tolerance Index (APTI) is a tool applied for categorizing sensitive or tolerant plants towards air pollution and is calculated by using four biochemical parameters like total chlorophyll content, ascorbic acid, pH, and relative water content of rice and wheat. Results indicated that the pH of cell sap of both the crops was acidic to neutral pH (3.5-6.9) at polluted sites while neutral to slightly alkaline (7.0-7.9) at less polluted sites. Ascorbic acid content was high at polluted sites since ascorbic acid shows a defense mechanism against air pollution. Chlorophyll content (up to 0.61mg/g) and relative water content have shown a significant decrease at most polluted sites. As per APTI values (APTI<11), both the crops were sensitive to air pollution in the selected area. APTI might be beneficial in the selection of crop species in the polluted area which shows that a higher concentration of air pollutants can damage crops severely. APTI was found to be positively correlated with pH, total chlorophyll content, and relative water content and negatively correlated with ascorbic acid.

scholarly journals Assessment of lettuce quality during storage at low relative humidity using Global Stability Index methodology

2012 ◽  
Vol 32 (2) ◽  
pp. 366-373 ◽  
Author(s):  
María Roberta Ansorena ◽  
María Victoria Agüero ◽  
María Grabriela Goñi ◽  
Sara Roura ◽  
Alejandra Ponce ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Relative Humidity ◽  
Global Stability ◽  
Water Content ◽  
Relative Water Content ◽  
Storage Time ◽  
Stability Index ◽  
Total Chlorophyll ◽  
External Zone ◽  
Relative Water

During postharvest, lettuce is usually exposed to adverse conditions (e.g. low relative humidity) that reduce the vegetable quality. In order to evaluate its shelf life, a great number of quality attributes must be analyzed, which requires careful experimental design, and it is time consuming. In this study, the modified Global Stability Index method was applied to estimate the quality of butter lettuce at low relative humidity during storage discriminating three lettuce zones (internal, middle, and external). The results indicated that the most relevant attributes were: the external zone - relative water content, water content , ascorbic acid, and total mesophilic counts; middle zone - relative water content, water content, total chlorophyll, and ascorbic acid; internal zone - relative water content, bound water, water content, and total mesophilic counts. A mathematical model that takes into account the Global Stability Index and overall visual quality for each lettuce zone was proposed. Moreover, the Weibull distribution was applied to estimate the maximum vegetable storage time which was 5, 4, and 3 days for the internal, middle, and external zone, respectively. When analyzing the effect of storage time for each lettuce zone, all the indices evaluated in the external zone of lettuce presented significant differences (p < 0.05). For both, internal and middle zones, the attributes presented significant differences (p < 0.05), except for water content and total chlorophyll.

scholarly journals Roadside Plants as Bio-indicators of Urban Air Pollution

2020 ◽  
pp. 321-326
Author(s):  
J. R. Mulay
Keyword(s):  
Air Pollution ◽  
Leaf Extract ◽  
Traffic Density ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Bougainvillea Spectabilis ◽  
Roadside Plants

This paper describes air pollution tolerance among roadside plants exposed to varying degrees of vehicular pollutants. Evaluation of air pollution tolerance index (APTI) of 10 selected wild plant species was carried out to assess their response to ambient levels of air pollutants along the busy roadways of Ahemadnagar Four parameters namely total chlorophyll, ascorbic acid, pH of leaf extract and relative water content were determined and computed together to signify air pollution tolerance index (APTI) of plants. The observed significant reduction in total chlorophyll, ascorbic acid and relative water content showed inverse relationship with traffic density. Similarly, pH of leaf extract followed an exponential decrease with increase in traffic density and drifted towards acidic range. Comparison of APTI values from control to polluted sites revealed maximum reduction in Bougainvillea spectabilis while least change was noted in Peltophorum pterocarpum. Among the plants studied maximum net per cent reduction of APTI over control was seen in Bougainvillea spectabilis and Ageratum conyzoides and are considered to be sensitive species. While Peltophorum pterocarpum and Portulaca oleraceae are tolerant species since they have shown least per cent reduction in APTI.

EFFECT OF VEHICULAR EMMISSION ON SOME BIOCHEMICAL PARAMETERS AND STOMATA OF SELECTED TREES ALONG ZARIA-KADUNA HIGHWAY

2021 ◽  
Vol 5 (1) ◽  
pp. 271-277
Author(s):  
Usman Hassan ◽  
L. Upahi ◽  
M. B. Ibrahim
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Biochemical Parameters ◽  
Mangifera Indica ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Vehicular Emission ◽  
Pollution Tolerance ◽  
Significant Difference ◽  
Polluted Sites

Biochemical and stomatal studies were conducted on selected trees along Zaria-Kaduna highway to determine their pollution tolerance level. The sites were chosen to emphasize exposure to vehicular emission pollution (VEP) and non-exposure to vehicular emission pollutants (NEP). Biochemical parameters analyzed where based on the Air Pollution Tolerance Index (APTI) which prioritizes four biochemical parameters, namely ascorbic acid, total chlorophyll, leaf extract pH and relative water content (RWC), for pollution tolerance. Ascorbic acid and RWC were higher in plants at the polluted site with Mangifera indica showing the highest increase of 1.2mg/g while total chlorophyll decreased most significantly in Ficus polita of about 4.1mg/g.   Results from stomata studies reveal a significant difference (P ≤ 0.05) in stomatal size and stomatal index for all the trees at the polluted sites. Stomata was generally found to significantly decrease in size or increase in density for plants at the polluted sites. Results computed for APTI show M. indica (24), Anarcardium occidentale (24.1), Eucalyptus cameldulensis (17.1) and Senna siamea (18.6) having the best APTI which indicate their possible tolerance to air pollution stress while Azadirachta indica (14.4),  Ficus polita (13), G. arborea (9.4), T. catapa (15.2), Parkia biglobosa (13.4), and Tamarindus  indica (9.9) were found to be sensitive. M. indica and A. occidentale had the best APTI indices which indicate that these plants could serve as sinks in absorbing air pollutants

Air Pollution Tolerence Index, Anticipated Performance Index of plants studied near selected sites at Salem, Dharmapuri District

2021 ◽  
pp. 5931-5936
Author(s):  
Krishnaveni M. ◽  
M . Saran Kumar ◽  
Anithasri G. ◽  
Nanthini S. ◽  
Gowsalya K. ◽  
...  
Keyword(s):  
Air Pollution ◽  
Performance Index ◽  
Living Environment ◽  
Tolerance Index ◽  
Sample Collection ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Anticipated Performance Index ◽  
Polyalthia Longifolia

Air pollution due to huge number of vehicles emitting toxic gas poisons both living environment affecting fauna and flora. Road side plants are affected mostly by pollution as they are primary acceptors and gets reflected in terms of tolerance and sensitivity to pollution. Hence, the present work was designed to study the air pollution tolerance (APTI) using biochemical parameters and anticipated performance index (API) of the plants collected near seven different locations. Among the plants assessed, all plants selected does not show much difference in ascorbic acid, total chlorophyll, pH, relative water content, but that slight difference exhibited variations in air pollution tolerance index. Pongamia pinnata (33.16), Ficus religiosa (34.05) Near Asian rubber Industry, Kandampatty Byepass, Salem was found to be a tolerant species, Polyalthia longifolia (8.21) as very sensitive in plants studied Near KMB Granites Pvt. Ltd. Kottagoundampatty, Salem, and the rest was found to be moderately tolerent. Since, the studied plants show lesser surface area, the amount of dust collected was also less, which might be due to the climatic condition prevailed at that time of sample collection. Likewise, the API was found to be excellent in Yercaud lake view and very good in study area Duroflex company, Karimangalam, Dharmapuri, poor in study area Thanithotty Quarry, Salem as well as in KMB granites Pvt.Ltd. and good for the remaining three locations. So, the sensitive plants has to be protected that are located in these sites to reduce the pollution load.

Leaf growth and K+/Na+ ratio as an indication of the salt tolerance of three sorghum cultivars grown under salinity stress and IAA treatment

2004 ◽  
Vol 52 (3) ◽  
pp. 287-296 ◽  
Author(s):  
M. M. Azooz ◽  
M. A. Shaddad ◽  
A. A. Abdel-Latef
Keyword(s):  
Salt Tolerance ◽  
Water Content ◽  
Leaf Area ◽  
Salinity Stress ◽  
Relative Water Content ◽  
Leaf Growth ◽  
Dry Mass ◽  
Inhibitory Effect ◽  
Tolerance Index ◽  
Relative Water

The salt tolerance of three sorghum (Sorghum bicolor L.) cultivars (Dorado, Hagen Shandawil and Giza 113) and their responses to shoot spraying with 25 ppm IAA were studied. Salinity stress induced substantial differences between the three sorghum cultivars in the leaf area, dry mass, relative water content and tolerance index of the leaves. Dorado and Hagen Shandawil tolerated salinity up to 88 and 44 mM NaCl, respectively, but above this level, and at all salinity levels in Giza 113, a significant reduction in these parameters was recorded. The rate of reduction was lower in Dorado than in Hagen Shandawil and Giza 113, allowing the sequence Dorado ? Hagen Shandawil ? Giza 113 to be established for the tolerance of these cultivars to salinity. The differences in the tolerance of the sorghum cultivars were associated with large differences in K+ rather than in Na+, which was found to be similar in the whole plant. The youngest leaf was able to maintain a higher K+ content than the oldest leaf. Consequently the K+/Na+ ratios were higher in the most salt-tolerant cultivar Dorado than in the other sorghum cultivars, and in the youngest than in the oldest leaf. In conformity with this mechanism, the stimulatory effect of the exogenous application of IAA was mostly associated with a higher K+/Na+ ratio. Shoot spraying with IAA partially alleviated the inhibitory effect of salinity on leaf growth and on the K+ and Ca2+ contents, especially at low and moderate levels of salinity, while it markedly retarded the accumulation of Na+ in the different organs of sorghum cultivars. Abbreviations: LA: Leaf area, DM: Dry mass, I Indole acetic acid, RWC: Relative water content,TI: Tolerance index

scholarly journals Air Pollution Tolerance Index for Selected Species of Plants in Roadside Highways at Allahabad, Uttar Pradesh, India

2020 ◽  
pp. 247-254
Author(s):  
Rahul Nishad ◽  
Harsh Bodh Paliwal ◽  
Makhan Singh Karada ◽  
Dheer Agnihotri
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Azadirachta Indica ◽  
Tolerance Index ◽  
Saraca Asoca ◽  
Pollution Tolerance ◽  
Minimum Value ◽  
Ficus Benghalensis ◽  
Maximum Value ◽  
Air Pollution Tolerance Index

In recent years air pollution is one of the biggest problems in the world. Owing to the transboundary dispersion of contaminants around the world, air pollution has its own peculiarities. In a much planned urban setup industrial pollution takes a backseat and cooler admission takes the president's as the major cause of urban air pollution in the present investigation your pollution torrents index was calculated for various plant species growing around the Allahabad Highway. Five plants available commonly in all locations were selected for the present research namely Azadirachta indica (Neem), Delonix regia (Gulmohar), Saraca asoca (Ashok), Ficus benghalensis (Bargad), Ficus religiosa (Pepal). Using normal procedures, ascorbic acid, leaf extract pH, overall chlorophyll, relative water content and air quality tolerance index were analysed. Both plants tested in both areas have been shown to be pollution-sensitive, varying from 02.29 to 12.53. No pollution tolerant organisms studied were found. The maximum value of pH was 7.8 found in Neem tree spp. (Azadirachta indica) in Rewa Road (NH-35) and the minimum value of pH was 5.9 found in Gulmohar tree spp. (Delonix regia) in Varanasi Road (NH-19), The maximum value of RWC (89.99 %) found in Ashok tree spp. (Saraca asoca) and the minimum value of RWC (58.64 %) found in Neem tree spp. (Azadirachta indica) in Mirzapur Road site (NH-76). The maximum value of Total Chlorophyll Content was 1.55 mg/g found in Ashok tree spp. (Saraca asoca) in Mirzapur Road (NH-76) and the minimum value of Total Chlorophyll Content was 0.71 mg/g found in Bargad tree spp. (Ficus benghalensis) in Control Site and Rewa Road (NH-35). The maximum value of Ascorbic Acid (1.07 mg/g) found in Ashok tree spp. (Saraca asoca) in Rewa Road site (NH-35) and the minimum value of Ascorbic Acid (0.39 mg/g) found in Pepal tree spp. (Ficus religiosa) in Mirzapur Road site (NH-76) The variance may be due to alternative biochemical parameters being reflected. Plant can filter the air through aerial elements especially through their twigs stem leaves air pollution management is the better manage by the afforestation program. Air pollution tolerance index (APTI) is an intrinsic quality of tree to control air pollution problem which is currently of major concern of local urban locality. The trees having higher tolerance index rate or tolerant towards air pollution and can be used as a major component to reduce air pollution whereas the tree having less tolerance index can be an indicator to know the rate of air pollution. Hence, it is essential to protect the plants.

scholarly journals Air Pollution Tolerance Index (APTI) Selected Plant Species in Puerto Princesa City for Strategic Urban Forest Planning

2020 ◽  
pp. 32-38
Author(s):  
Jessa Marie S. Caabay
Keyword(s):  
Air Pollution ◽  
Plant Species ◽  
Urban Areas ◽  
Urban Forest ◽  
Ascorbic Acid Content ◽  
Tolerance Index ◽  
Negative Effects ◽  
Pollution Tolerance ◽  
Relative Water ◽  
Evaluation And Monitoring

Air pollution gives negative effects to humans as well as to plants which are exposed all throughout the day in these pollutants. Assessment of plants' response to air pollutants may serve as a fundamental method in terms of environmental monitoring and management. Sensitive group of plants can serve as an indicator of air quality while the tolerant ones can be sinks. TheAir Pollution Tolerance Index (APTI) of selected plant species in Puerto Princesa City, namely: Bougainvillea (Bougainvillea spectabilis), Santan (Ixoracoccinea), Fire Tree (Delonixregia), Golden Bush (Durantarepens), and Acacia tree (Samaneasaman)were evaluatedusing relative water content, ascorbic acid content, leaf extract pH, and total leaf chlorophyll content.It was found out that B. spectabiliswas the most tolerant species, followed by S. samanwhile D. regiahas an intermediate index. D. repensand I. coccineaon the other hand were found to be sensitive plant species. Plants with high APTI values are the tolerant ones and are recommended to be planted in urban areas to absorb and off certain harmful gaseous pollutants while the sensitive ones have the potential to serve as bio-indicators for evaluation and monitoring.

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