scholarly journals Phenotypic plasticity and ecology of three species of Podostemaceae Rich. Ex C. Agardh

2017 ◽  
Vol 17 (4) ◽  
pp. 222-227
Author(s):  
H. Lalruatsanga
Keyword(s):  
Phenotypic Plasticity ◽  
Chemical Analysis ◽  
Annual Cycle ◽  
Clean Water ◽  
Essential Factor ◽  
Nutrient Condition ◽  
Physico Chemical ◽  
Ecological Requirement ◽  
Successful Establishment ◽  
Study Sites

The members of Podostemaceae, commonly called river-weeds, are with very peculiar vegetative form; revealing many unique morphological, anatomical and ecological characters from other angiosperms. They undergo an annual cycle of colonization, establishment of a canopy of mature plant, and dies back when the water level drops. The annual pattern is dictated by high and low water periods. Physico-chemical analysis showed that the largest population of the species occupied an area of full sunlight. Water samples from the two study sites viz. Janiaw and Umtienger localities, both from East Khasi Hills District, Meghalaya, India, showing high pH indicated less human activities of different kind. It is also determined that the species inhabits clean rivers, thus, they serve as an indicator of clean water. They occur primarily in low nutrient condition. Further, it was also observed that dissolved oxygen is the most essential factor for successful establishment of these plants, rather than other nutrients and pH. Toxic discharge of effluents from industries and agrochemical residues are serious threat to podostemads that has unique ecological requirement.

Assessment of wheat (Triticum aestivum L.) genotypes for high temperature stress tolerance using physico-chemical analysis

2020 ◽  
Vol 53 (2) ◽  
Author(s):  
Khalil Ahmed Laghari ◽  
Abdul Jabbar Pirzada ◽  
Mahboob Ali Sial ◽  
Muhammad Athar Khan ◽  
Jamal Uddin Mangi
Keyword(s):  
Triticum Aestivum ◽  
High Temperature ◽  
Chemical Analysis ◽  
Stress Tolerance ◽  
Temperature Stress ◽  
Triticum Aestivum L ◽  
High Temperature Stress ◽  
Physico Chemical

scholarly journals The exploration of the crystal nucleation parameters and physico-chemical analysis of a single crystal: 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15710-15721
Author(s):  
Paavai Era ◽  
RO. MU. Jauhar ◽  
V. Viswanathan ◽  
M. Madhangi ◽  
G. Vinitha ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Single Crystal ◽  
Chemical Properties ◽  
Crystal Nucleation ◽  
Nucleation Parameters ◽  
Physico Chemical

This paper discusses the structural orientations and the physico-chemical properties of a single crystal of 2-amino-4,6-dimethoxypyrimidinium hydrogen (2R,3R)-tartrate 2-amino-4,6-dimethoxypyrimidine (2ADT).

scholarly journals Estimating Environmental Contamination and Element Deposition at an Urban Area of Central Italy

Urban Science ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 76 ◽  
Author(s):  
Stefano Loppi ◽  
Adelmo Corsini ◽  
Luca Paoli
Keyword(s):  
Urban Area ◽  
Environmental Contamination ◽  
Urban Areas ◽  
Central Italy ◽  
Protective Role ◽  
Evernia Prunastri ◽  
Physico Chemical ◽  
Living Organisms ◽  
Study Sites ◽  
Economic Constraints

Air quality monitoring in many urban areas is based on sophisticated and costly equipment to check for the respect of environmental quality standards, but capillary monitoring is often not feasible due to economic constraints. In such cases, the use of living organisms may be very useful to complement the sparse data obtained by physico-chemical measurements. In this study, the bioaccumulation of selected trace elements (Al, As, Cd, Ce, Cr, Cu, Fe, Ni, Pb, S, Sb, Zn) in lichen samples (Evernia prunastri) transplanted for three months at an urban area of Central Italy was investigated to assess the main environmental contaminants, their sources, and the fluxes of element depositions. The results pinpointed Cu and Sb as the main contaminants and suggested a common origin for these two elements from non-exhaust sources of vehicular traffic, such as brake abrasion. Most study sites were, however, found to be subjected to low or moderate environmental contamination, and the lowest contamination corresponded to the main green areas, confirming the important protective role of urban forests against air pollution. Ranges of estimated mean annual element deposition rates in the study area were similar or lower than those reported for other urban areas.

scholarly journals Physico Chemical Analysis of Sapota (Manilkara zapota) Coated by Edible Aloe Vera Gel

2015 ◽  
Vol 3 (1) ◽  
pp. 20-25 ◽  
Author(s):  
N. Padmaja ◽  
S. John Don Bosco ◽  
J. Sudhakara Rao
Keyword(s):  
Chemical Analysis ◽  
Aloe Vera ◽  
Ascorbic Acid Content ◽  
Chemical Characteristics ◽  
Manilkara Zapota ◽  
Aloe Vera Gel ◽  
Physico Chemical ◽  
Dramatic Decline ◽  
Physical And Chemical

The physical and chemical characteristics of the fruit have immense significance as they ultimately affect the quality of processed productsprepared from them. Over ripening of Sapota (Manilkara zapota) fruits at the post-harvest stage usually results in dramatic decline in quality.In the present study, physico chemical analysis (which includes Weight loss, Colour, Texture, TSS, pH, TA and Ascorbic acid content) ofedible Aloe vera gel coated Sapota fruits packed in LDPE and stored at 15 ± 2? were studied at regular intervals of 5 days i.e., 0th,5th, 10th,15thand 20th days. The dip treatment of Aloe vera gel coating 1:2, 7 minutes had best retained the physico chemical characteristics than the othertreatments performed and was found to be the most effective treatment in maintaining the fruit quality attributes along with the shelf lifeextension of about 20 days.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.11703 Int J Appl Sci Biotechnol, Vol. 3(1): 20-25      

Microscopic and Phytochemical analysis of Desmodium velutinum (Willd) DC and Desmodium gangeticum (L.) DC. Panchanga powder

2021 ◽  
pp. 2950-2956
Author(s):  
Jigyasa Pathak ◽  
Aswathi M. P. ◽  
B. R. Patel ◽  
Harisha C. R. ◽  
Shukla Vinay J.
Keyword(s):  
Chemical Analysis ◽  
Analytical Study ◽  
Water Soluble ◽  
Wild Edible Plants ◽  
Phytochemical Analysis ◽  
Edible Plants ◽  
Therapeutic Purpose ◽  
Whole Plant ◽  
Physico Chemical ◽  
Collection Practices

Background: Desmodium velutinum (Fabaceae) is one of the wild edible plants used traditionally to treat diarrhoea, haematuria, infertility and also externally used to treat scorpion bites. Though various parts of the plant have been used for therapeutic purpose, panchanga of the plant has not been studied for its Pharmacognostical and phytochemical characteristics in detail, following scientific parameters. Hence in the present study Desmodium velutinum whole plant has been studied for its pharmacognostical and phytochemical characters and compared with commonly used species Desmodium gangeticum. Methods: Whole plant of Desmodim velutinum was collected from Paikmal, Odisha and Desmodium gangeticum was collected from Junagarh, Gujarat in the month of November 2019 following good collection practices and shade dried. Pharmacognostical study and analytical study were performed following standard pharmacopoeial procedures. Results: Whole plant (Panchanga) of former is sweetish and latter is bitter. Powder microscopy of Desmodium gangeticum showed presence of rhomboidal crystals and lignified annular and spiral vessels. Desmodium velutinum showed presence of prismatic crystals and lignified pitted vessels. Physico-chemical analysis showed higher loss on drying in Desmodium gangeticum, and higher water soluble extractive values of Desmodium velutinum. Phytochemical estimation showed the presence of Proteins, tannins, and carbohydrates in both samples. HPTLC study showed similar Rf value 0.82 and 0.94 at 254 and 0.03 and 0.41 at 366nm. Conclusion: Basing upon the analytical and microscopic similarities Desmodium velutinum may be considered as substitute of Desmodium gangeticum

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