ID: 63850
Title: Three-dimensional point cloud segmentation using a combination of RANSAC and clustering methods
Author: Puyam S. Singh, Iainehborlang M. Nongsiej , Valarie Marboh , Dibyajyoti Chutia , Victor Saikhom and S. P. Aggarwal
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 434 -441 (2023)
Subject: Three-dimensional point cloud segmentation using a combination of RANSAC and clustering methods
Keywords: Clustering, drone images, hierarchical model, three-dimensional point cloud, segmentation
Abstract: There are challenges in performing 3D scene understanding on point clouds derived from drone images as these
data are highly unstructured with no neighbouring information, highly redundant making the processing difficult
and time-consuming and have variable density making it
difficult to group and segment them. For proper scene
understanding, these point clouds need to be segmented
and classified into different groups representing similar
characteristics. The approaches for segmentation differ
based on the distinctiveness of each data product. Although newer machine learning-based approaches work
well, they need large amounts of standardized labelled
data which in turn require extensive resources and human
intervention to obtain good results. Considering these, we
have proposed a hybrid clustering-based hierarchical
model for effective segmentation of dense 3D point cloud.
We have applied the model to local data having a mix of
man-made and natural vegetation with variable topography. The combination of RANSAC, DBSCAN and Euclidean method of cluster extraction proved to be useful
for precise segmentation and classification of point clouds.
The performance of the model has been assessed using
Davies–Bouldin dbIndex-based intrinsic measures. The
hybrid approach is able to segment 91% of the point
clouds precisely compared to the conventional one-step
clustering approach.
Location: T E 15 New Biology building
Literature cited 1: Jiang, S., Jiang, C. and Jiang, W., Efficient structure from motion
for large-scale UAV images: a review and a comparison of SfM
tools. ISPRS J. Photogramm. Remote Sensing, 2020, 167, 230–251;
ISSN 0924-2716, https://doi.org/10.1016/j.isprsjprs.2020.04.016.
Leal-Alves, D. C. et al., Digital elevation model generation using
UAV-SfM photogrammetry techniques to map sea-level rise scenarios
at Cassino Beach, Brazil. SN Appl. Sci., 2020, 2, 2181; https://doi.
org/10.1007/s42452-020-03936-z
Literature cited 2: Dey, T. K., Li, G. and Sun, J., Normal estimation for point clouds:
a comparison study for a Voronoi based method. In Proceedings
Eurographics/IEEE VGTC Symposium Point-Based Graphics, Stony
Brook, New York, USA, 2005, pp. 39–46; doi:10.1109/PBG.2005.
194062.
Zhao, R., Pang, M., Liu, C. and Zhang, Y., Robust normal estimation for 3D LiDAR point clouds in urban environments. Sensors,
2019, 19, 1248; https://doi.org/10.3390/s19051248
ID: 63849
Title: Fauna associated with wheat cultivation in high altitudes of the Nilgiris, India
Author: J. Berliner , J. Alfred-Daniel , Balaji Rajkumar , H. C. Hombegowda , B. Manimaran , Rashid Parvez, M. R. Khan , Priyank Hanuman Mhatre6 and Guru-Pirasanna-Pandi Govindharaj
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 426 -433 (2023)
Subject: Fauna associated with wheat cultivation in high altitudes of the Nilgiris, India
Keywords: Agroecosystem, animals, biodiversity, birds, nematodes, wheat.
Abstract: Wheat cultivation in southern India is unique as it is
grown in high altitudes (1500 m amsl), surrounded by
the pristine environment of the Western Ghats. Also, it
can be grown throughout the year, unlike only once a
year in India’s central and northern plains. The faunal
pressure on wheat cultivation in southern India is different from the other wheat-growing regions in the country.
However, information on faunal diversity associated
with wheat crops in this unique ecosystem is meagre.
Hence, the present study aimed to acquire knowledge
based on the fauna associated with and their influence
on wheat cultivation in the Nilgiris, Tamil Nadu, South
India. Our results indicated that the phylum Arthropoda
dominated the ecosystem with 61 species, followed by the
Chordata with 41 species, and the Nematoda with 22 species. The coleopterans were found to be dominant among
arthropods followed by lepidopterans. In chordates, small
birds such as spotted munia and common rosefinch were
observed often, while among the Nematoda, the plantparasitic order Tylenchida topped the list. During different phases of cultivation, the overall diversity was highest
during the early stages of the crop and least during the
vegetative phase. This study also highlights the human–
animal interaction in the context of agriculture, as it was
observed that the damage caused by Nilgiri gaur, spotted
munia and common rose finch was one of the major
reasons for non-preference of wheat crops by the farmers
besides the lack of cost-effective technologies to ward-off
wild animals. This initiative may encourage researchers to
perform more comprehensive studies on the faunal diversity of the entire crop-growing areas in the southern
hill regions of India.
Location: T E 15 New Biology building
Literature cited 1: Agricoop, Annual Report 2020–21. Department of Agriculture,
Cooperation and Farmers’ Welfare Ministry of Agriculture and
Farmers’ Welfare Government of India, Madras, 2021, pp. 1–13;
https://agricoop.nic.in/sites/default/files/Web%20copy%20of%20-
AR%20%28Eng%29_7.pdf
Francis, W., The Nilgiris Madras District Gazateers, The Superintendent, Government Pr
Literature cited 2: Myers, N., Mittermeier, R. A., Mittermeier, C. G., da Fonseca, G.
A. B. and Kent, J., Biodiversity hotspots for conservation priorities.
Nature, 2000, 403, 853–858.
Cobb, N. A., Estimating the nema population of soil, with special
reference to the sugar-beet and root-gall nemas, Heterodera
schachtii Schmidt and Heterodera radicicola (Greef) Müller. Agricultural Technology Circular. Bureau of Plant Industry, US Department
of Agriculture, Government Print Office, USA, 1918.
ID: 63848
Title: Live transportation of food fishes: current scenario and future prospects
Author: Vishnu R. Nair, U. Parvathy, T. J. Jithin , P. K. Binsi and C. N. Ravishankar
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 418 -425 (2023)
Subject: Live transportation of food fishes: current scenario and future prospects
Keywords: Aquaculture, anaesthetization, food fishes, live transportation, water quality
Abstract: Live fish has emerged as a highly in-demand commodity
in the recent past due to the progressive quality concepts of seafood consumers. Live fish transportation depends on several internal and external factors which need
to be considered critically for improving survival as
well as quality during transportation. The lack of a systematic approach for live fish transportation, from on-farm
handling to marketing, is the most significant issue
faced by the stakeholders. This article provides an integrated insight into the current state of knowledge in
the field of live transportation of food fishes emphasizing the significance, present status, challenges and exploration possibilities
Location: T E 15 New Biology building
Literature cited 1: Fabinyi, M. et al., Luxury seafood consumption in China and the
intensification of coastal livelihoods in Southeast Asia: the live reef
fish for food trade in Balabac, Philippines. Asia Pac. Viewp., 2012,
53, 118–132.
Prasad, S., Fish transportation and marketing in Dumraon and Buxar,
South Bihar, India. Meander, 2020, 5, 10–65.
Literature cited 2: Harmon, T. S., Methods for reducing stressors and maintaining water
quality associated with live fish transport in tanks: a review of the
basics. Rev. Aquacult., 2009, 1, 58–66.
Treasurer, J. W., Changes in pH during transport of juvenile cod
Gadus morhua L. and stabilisation using buffering agents. Aquaculture, 2012, 330–333, 92–99.
ID: 63847
Title: Decision support framework for the management and conservation of wild edible plants in Maharashtra, India
Author: Poorva Joshi, Manali Rane and Aparna Watve
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 414 -417 (2023)
Subject: Decision support framework for the management and conservation of wild edible plants in Maharashtra, India
Keywords: Conservation, indigenous knowledge, sustainable development, wild edible plants.
Abstract: Wild edible plants (WEPs) are important in ethnobiological research in India. Maharashtra has been
chosen as a case study to understand the state of knowledge about WEPs and their use for sustainable development. A total of 436 edible plants have been listed so far, but documentation of management practices is less and needs systematic research in the future. We suggest future action research
themes and a decision-support framework for using WEPs in Maharashtra.
Location: T E 15 New Biology building
Literature cited 1: Meyer, R. S., DuVal, A. E. and Jensen, H. R., Patterns and processes in
crop domestication: an historical review and quantitative analysis
of 203 global food crops. New Phytol., 2012, 196(1), 29–48.
Heywood, V., Use and potential of wild plants in farm households.
In FAO Farm Systems Management Series 15, Food and Agriculture
Organization, Rome, Italy, 1999, pp. 2–3.
Literature cited 2: Turner, N. J., Luczaj, L. J., Migliorini, P., Pieroni, A., Dreon, A. L.,
Sacchetti, L. E. and Paoletti, M. G., Edible and tended wild plants,
traditional ecological knowledge and agroecology. Crit. Rev. Plant
Sci., 2011, 30(1–2), 198–225.
Carvalho, A. M. and Barata, A. M., The consumption of wild edible
plants. In Wild Plants, Mushrooms and Nuts: Functional Food
Properties and Applications (eds Ferreira, I., Morales, P. and Barros,
L.), John Wiley, Chichester, UK, 2017, pp. 159–198.
ID: 63846
Title: Does India need a different rice ecosystem to harness the export advantages and manage the virtual water exports?
Author: Raka Saxena, M. S. Raman, Shivendra K. Srivastava, Md Arshad Khan and Rohit Kumar
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 407 -413 (2023)
Subject: Does India need a different rice ecosystem to harness the export advantages and manage the virtual water exports?
Keywords: Comparative advantage, rice, sustainable cultivation, virtual water exports
Abstract: The present study assessed the virtual water trade and comparative advantages in rice exports. It
suggests realigning the Indian rice ecosystem based on the demand–supply gap, groundwater exploitation, productivity growth and untapped productivity potential. It also advocates the phased shifting
of acreage under common (non-basmati) rice production to potential regions identified as suitable.
The proposed shifting of cultivation will lead to achieving a sustainable rice ecosystem, conserving
the natural resource base and reducing risk in terms of environmental and economic factors. Emerging
practices such as dry direct-seeded rice, and the system of rice intensification could be effectively
used for sustainable rice ecosystem in India
Location: T E 15 New Biology building
Literature cited 1: Chapagain, A. K., Hoekstra, A. Y. and Savenije, H. H. G., Water
saving through international trade of agricultural products. Hydrol.
Earth Syst. Sci., 2006, 10(3), 455–468.
Chapagain, A. K. and Hoekstra, A. Y., The global component of
freshwater demand and supply: an assessment of virtual water
flows between nations as a result of trade in agricultural and industrial products. Water Int., 2008,
Literature cited 2: Hoekstra, A. Y. and Chapagain, A. K., The water footprints of Morocco
and the Netherlands: global water use as a result of domestic consumption of agricultural commodities. Ecol. Econ., 2007, 64(1), 143–151.
Liu, J., Zehnder, A. J. and Yang, H., Historical trends in China’s
virtual water trade. Water Int., 2007, 32(1), 78–90.
ID: 63845
Title: Avian botulism mass mortality from Sambhar Salt Lake, Rajasthan, Indi
Author: Kavitha Singh ,Monali Singh
Editor: S.K.Satheesh
Year: 2023
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 124 (4) 403 -406 (2023)
Subject: Avian botulism mass mortality from Sambhar Salt Lake, Rajasthan, Indi
Keywords: Avian botulism, mass mortality,Sambhar Salt Lake, Rajasthan, India
Abstract: The first report of mass mortality in migratory birds was received by the Rajasthan
Forest Department on 10 November 2019.
A joint team of forest, revenue and animal
husbandry officials visited the Sambhar lake
area the same day, and samples were collected to test for bird flu. It was decided on
the spot that carcasses would be collected
and buried in deep pits with limestone due
to the fear of disease spread. Due to the
threat of bird flu, the local staff was advised
to adopt appropriate prophylactic measures
such as the use of masks and gloves during
their field visits and while handling the carcasses. Preliminary findings gave a negative
result for bird flu. Thereafter, water samples
and biological samples were sent to multiple Government laboratories for further
analysis.
Location: T E 15 New Biology building
Literature cited 1: Sangha, H. S., Indian Birds, 2009, 4(3),
82–97.
Mehdi, S., Ward, B. S. and George, E. H.,
J. Wildl. Dis., 1984, 20(2), 86–89.
Literature cited 2: Gye-Hyeong, W. et al., J. Wildl. Dis.,
2010, 46(3), 951–955.
4. Anza, I., Vidal, D., Feliu, J., Crespo, E.
and Mateo, R., Appl. Environ. Microbiol.,
2016, 82(10), 3092–3099.
ID: 63844
Title: Structural assemblage of avian community in Manasbal belt, Jammu and Kashmir
Author: Hameem Mushtaq Wani and Umer Nazir
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1176- 1180 (2020)
Subject: Structural assemblage of avian community in Manasbal belt, Jammu and Kashmir
Keywords: Avifauna, Manasbal, Nesbal, Diversity, Hill, Evenness
Abstract: Manasbal belt, located in district Ganderbal of Jammu and Kashmir, serves as an attraction for different bird species due to the presence of good forest cover and the deepest fresh water lake of India (Manasbal lake).However, the area remains unexplored as far as avian diversity is considered. To know the status and diversity of birds in Manasbal belt of Jammu and Kashmir, a study was conducted from December 2019 to February 2020.The observations revealed that they are provides habitat for about 51 species of birds belonging to 14 orders and 25 families. The highest diversity was observed at study site II followed by study site III and study site i.e. Family Anatidae (n=8) has the highest number of species followed by Accipitridae (n=5), Corvidae (n=4), Muscicapidae (n=4) and so on.
Location: T E 15 New Biology building
Literature cited 1: Gaston A.J. (1975).Estimating bird population, Journal of the Bombay Natural History Society, 72: 271-283.
Grimmett R., Inskipp C. And Inskipp T. (2016) .Birds of Indian Subcontinent. Bloomsbury publishing India.528 pp.
Literature cited 2: Hussain A., Rao R.J. and Singh H (2012) Diversity of Waterbird in Wular lake Jammu and Kashmir ,India, Advances in Bioresearch, 3 (3) : 81-86.
Jan I., Shah G.M. and Jan U.(2016) .Diversity and Abundance of Avifauna of Haigam Wetland and its adjoining Areas, J &K, India, International Journal of Innovative Research in Science, Engineering and Technology, 5 (11) : 19485-19494.
ID: 63843
Title: Screening of Selected hosts for sandalwood seedlings at nursery stage based on host cation exchange capacity
Author: Sandeep Chakraborty, L.Manjunatha, V.S.Shettepppanavar, A.S. Devakumar, S.Viswanath and A.Sinha
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1170- 1175 (2020)
Subject: Screening of Selected hosts for sandalwood seedlings at nursery stage based on host cation exchange capacity
Keywords: Cation exchange capacity, Primary host, Sandalwood seedlings, Hemi-root parasite, Host use efficiency
Abstract: Cation exchange capacity (CEC) of host is a well-recognized criterion to establish the suitable hosts for sandalwood. An experiment for nine months was laid down to find suitable primary hosts on the basis of CEC of host root, morphology , host use efficiency (HUE) and biomass of sandalwood at seedling stage in the nursery of Institute of Wood Science and Technology, Malleshwaram, Bengaluru, with 10 treatments (different hosts including control) , 3 replications in complete Randomized Design hosts including control) , 3 replication in Complete Randomized Design (CRD) .Based on preliminary data, increased and decreased CEC values of host roots were categorized as A and B, respectively. Results indicated that after being parasitized, decreased CEC of host root (category B) possibly it s biomass in comparison to hosts belonged to category A (increased CEC) in nursery condition. Among these treatments, T4 (Santalum album + Alternanthera ficoidea), T5 (Santalum album + Aerva sanguinolenta) and T8 (Santalum album + Mentha arvensis L) were good primary hosts for sandalwood seedlings belonged to category B. This indicated that boosts with decreased root CEC may not always poor as reported previously. The observations also validated the fact that primary hosts are necessary for sandalwood seedlings at early nursery stage to achieve better growth.
Location: T E 15 New Biology building
Literature cited 1: Ananthapadmanabha H.S., Nagaveni H.C. and Rai S.N. (1988) Influence of host plants in the growth of Sandal. My Forest, 24 (2) : 154-160.
Annapurna D. Rathore T.S and Joshi Geeta (2006). Modern Nursery Practices in the Production of Quality Seedlings of Indian Sandalwood (Santalum album L). Stage of Host Requirement and Screening of Primary Host Species. Jr. Of Sustainable Forest, 22 (3/4): 33-55.
Literature cited 2: Barrett D.R. and Fox J.E.D. (1995). A protocol suitable for raising seedlings of Santalum albumin Timor. In: Sandalwood Seed Nursery and Plantation Technology, FAO,Suva,Fiji,RAS/92/361.Ed.Gjerum L.Fox.J.E.D.and Lhrhart L.Field Document, 8: 163-164.
Chakraborty Sandeep, Manjunatha L. and Viswanath S. (2019) Simple unconventional methods to control powdery mildew in sandalwood seedlings. My Forest, 55 (1) :1-6.
ID: 63842
Title: Development of Volume tables for JKSCED and JKSCEU Clones of Eucalyptus for Southern Odisha
Author: Bijoy Prasad Ratho, Priyanka Shrivastava and Raman Nautiyal
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1164- 1169 (2020)
Subject: Development of Volume tables for JKSCED and JKSCEU Clones of Eucalyptus for Southern Odisha
Keywords: JKSCED, JKSCEU, Regression model, Volume table
Abstract: Eucalyptus has proved itself as a species highly suited for agro-forestry in India and is commercially grown by farmers in their fields. JK Papers introduced two new hybrid clones JKSCED and JKSCEU which have become very popular with farmers and are being extensively planted in South Odisha. Volume tables, developed for the mentioned clones on the basis of regression models using a variety of predictors will be useful to farmers/growers, research workers and planners in their respective areas, for predicting future yields, estimating increment and to assess return on capital and also for scientific purposes. The model with product of square of diameter at breast height and height (d2h) as predictable variable was observed to be the best for both the clones.
Location: T E 15 New Biology building
Literature cited 1: Avery T.E. and Burkhart H.E(1983).Forest measurements (No.Ed.3) .Mcgraw-Hill Book Company.
Chaturvedi A.N. (1995) .Volume tables and the regression equation for clonal plants. New Delhi, Tata Energy Research Institute.
Literature cited 2: Chaturvedi A.N.and Khanna L.S. (198) .Measurement of volume of Trees. In: Forest Mensuration, International Book Distributors, India, pp.98-99.
Dominguese R.M.A., Ptinha D.J.S., Sousa G.D.A., Vilvaverde J.J., Silva C.M., Freire C.S.R., Silvester A.J.D. and Pascoal Neto C.(2011).Eucalyptus biomass residues from agro-forest and pulping industries as sources of high-value triterpenic compounds, Cellulose chemistry and technology, 45 (7) : 475.
ID: 63841
Title: Analysis of Genetic diversity for wood variations in Casuarina equisetifolia Forst.
Author: Ashok Kumar, K.Gurumurthi and Shivani Dobhal
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1158- 1163 (2020)
Subject: Analysis of Genetic diversity for wood variations in Casuarina equisetifolia Forst
Keywords: Casuarina equisetifolia, pulping, correlation, clustering
Abstract: Casuarina equisetifolia Forst. is grown commercially as excellent wood for charcoal and scaffoldings .The exploration of newer avenues for production of pulp wood has now become utmost essential to bridge ever increasing gap between demands and supply of pulp woods, and therefore acceptability of Casuarina equisetifolia as raw material for paper industries was scrutinized, and accordingly a series of genotypes were analyzed for wood wood anatomical and pulping traits. The pulp yield varied from 45.10 (CHCE890401) to 51.95 (CHCE893004 with an average of 49.34 %.The correlation analysis revealed significantly positive correlation between fiber length and fiber diameter (O.52 and kappa number and ash content (0.64) , however significantly negative correlation was recorded between fiber diameter and slenderness ratio (-0.96) .Based on wood parameters, fifteen genotypes were grouped into six clusters with inter-cluster distance varying from 9.24 to 32.33 and intra-cluster distances from 4.38 to 8.97.Cluster VI was not only found to be most divergent cluster but also consisted three most suitable pulp producing genotypes. The results clearly indicate that selected genotypes of Casuarina equisetifolia could be grown as alternate pulp wood that could play a significant role in sustained supply of raw material for paper and pulp industries.
Location: T E 15 New Biology building
Literature cited 1: Anon (1984) .Casuarinas: Nitrogen fixing trees for adverse sites .National Research Council (NRC), National Academy Press. Washington DC, p 118.
Anon (2014) .Business Standards (News Paper) , Published on February 4.Mumbai ,India.
Literature cited 2: Anon (2014).India State of forest Report, Ministry of Environment and Forests ,Government of India, New Delhi, India.
Dommergues Y, R., Diem H.G. and Sougoufara B. (1990) .Nitrogen Fixation in Casuarinaceae: Quantification and improvement .In: Advances in Casuarina Research and Utilization (M.H.E-lLakany, J.W.Tumbull JW and J.L.Brewbaker, Eds) ,Cairo, Egypt, pp 110-121.
ID: 63840
Title: Standardization of seed germination in fever nut (Guilandina bonduc L) for adaptation in western Himalayas as its new adobe
Author: Vikas yadav patade, Kundan Kumar, Anand Kumar Gupta, Atul Grover, Prem Singh Negi, and Sanjai kumar Dwivedi
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1154- 1157 (2020)
Subject: Standardization of seed germination in fever nut (Guilandina bonduc L) for adaptation in western Himalayas as its new adobe
Keywords: Dormancy, Fever nut, Germination, Guilandina bonduc, Seed pre-treatment
Abstract: Fever nut (Guilandina bonduc L.) a fast growing important medicinal plant of Fabaceae family is widely distributed throughout the plains near sea-coasts and other Southern regions of India. However, information is not available regarding its adaptation in Western Himalayas, which is known for its wealth of medicinal herbs. The study indicates that the plant is amenable to successful adaptation in Western Himalayas. Further , due to uncontrolled exploitation for traditional medicines from nature, the plant has become endangered. The simple and effective method for its large scale propagation through seed germination are reported in the study. The method involves pre-treatment of seeds with concentrated sulphuric acid for 90 min in fresh or one year stored seeds. The results of the present study may be useful in large scale propagation of the plant in its new abode in Western Himalayas for further utilization in different types of herbal medicines and other purposes.
Location: T E 15 New Biology building
Literature cited 1: Cheruvathur M.K., Bitto J.and Thomas T.D. (2012).Pulvinus: an ideal explants for plant regeneration in Caesalpinia bonduc (L) Roxb., an important ethnomedicinal wood y Climber.Acta Physiol.Plant. 34:693-699.
Devi V.G., Johan A. and Selvarajan S.(2016) .Physicochemical standardisation and an overview on Caesalpinia bonduc Linn., a widely used Indian traditional drug.Euro.J.Pharma.Med.Res., 3: 427-434.
Literature cited 2: Kelly K.M. and Staden J.V., (1985).Effect of acid scarification on seed coat structure, germination and seedling vigor of Aspalathus linearis.J.Plant Physiol, 121:37-45.
Kumar S.R. Santos, Krishna V., Venkatesh Pradeepa K., Kumar KGirish, and Gnanesh A.U. (2012) .Direct and indirect method of plant regeneration from root explant of Caesalpinia bonduc (L) Roxb-A threatened medicinal plant of Western Ghats. Ind. J. Exp. Biol., 50: 910-917.
ID: 63839
Title: Inventory on deciphering interiors of commercially important Indian trees using 3D Electric resistance Tomography (ERT)
Author: B.N.Divakara, C.U.Nikhitha and S.S.Chauhan
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1149- 1153 (2020)
Subject: Inventory on deciphering interiors of commercially important Indian trees using 3D Electric resistance Tomography (ERT)
Keywords: Electric resistance tomography, Santalum album, Pterocarpus santalinus, Sapwood, Heartwood
Abstract: Tree Tronic tomograms are one among the advanced non-destructive method aiding for tree inspection. This method gives high resolution with more precision in measuring the sapwood, heartwood, stress and decay in the living trees. Our study focused on understanding the international wood structural details using 3D images of Electric Resistance Tomography (ERT) for commercially important tree species viz. Santalum album L (Sandalwood) and Pterocarpus santalinus L.f (Red sandalwood/sanders) of India .Initially, using ERT, the tree resistivity offered across the cross-sections of the stems at different heights from the ground was recorded. The combined effect of moisture content in the sapwood and resistivity offered by heartwood presented a non-invasive 2D cross sectional images at each height with color differentiation from blue (low resistance) to brown (high resistance) .In the healthy trees the concentric ring structure and the compactness of the wood at the center offered maximum resistance and gradually decreased towards the bark. However, 2D images failed to give the overall scenario of the structural details at different heights of tree stem. Hence, the 2D images of the individual trees were placed in the descending order with respect to the height measurements from the ground to give 3D images. The 3D imagery demonstrated in our study depicts the effective mode of representing the resistivity distribution along the stem to further differentiate the sapwood and heartwood in the standing tree.
Location: T E 15 New Biology building
Literature cited 1: Bieker D.and Rust S.(2010).Non-destructive estimation of sapwood and heartwood width in Scots pine (Pinus sylvestris) http://dx.doi.org/10.14214/sf.153.
Brazee N.J., Marra R.E., Gocke L. and Wassenae P.V. (2011) .Non-destructive assessment of internal decay in tree hardwood species of northeastern North America using sonic and electrical impedance tomography, Forestry , 84 (1) :33-39.Doi:10.1093/forestry/cpq040.
Literature cited 2: Bucor V. (2005) .Ultrasonic techniques for non-destructive testing of standing trees, Ultrasonics, 43:237-239.
Chen Y.S., Huang Y.S. and Chen S.S. (1998) .A study on moisture distribution of green wood and variation of specific gravity in Cryptomeria japonica D Don,Taiwan,Journal of Forest Science, 13:91-100.
ID: 63838
Title: Review on plant phenology study in different forest types in different forest types of India
Author: Manas Ranjan Mohanta, H.S.Suresh and Sudam Charan Sahu
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1137- 1148 (2020)
Subject: Review on plant phenology study in different forest types in different forest types of India
Keywords: Phenological events, Forest types, Synchrony, India
Abstract: The authors had gone through several findings in plant phonological research throughout the globe and emphasized in its development in Indian subcontinent. They had gathered data from published literatures (n=34) and analysed the phonological behaviour of four forest types of the country. The forest types include Tropical evergreen Forest (TE) , Tropical Dry deciduous Forest (TD) , sub-tropical Humid Forests (SH) and Tropical Moist deciduous Forest (TM).From the analysis , it was found that different forest types had diversified phonological behaviour from species to species, elevation to elevation and forest type to forest type. However, cumulatively peak leafing and flowering was found in the month of April in all the forest types except TM that had peak leafing in the month of March and flowering in February and August. Fruiting peak in TE was June and August, TD was July, SH was October and TM was February and March. Further, there was significant positive relationship (p<0.05) observed in leafing with flowering (r=0.859) in SH whereas negative relationship was observed in flowering with fruiting (r=-0.85) in TD which indicated synchrony among phenophases .This information bears much importance for future phonological studies in India reducing the research gap in this field.
Location: T E 15 New Biology building
Literature cited 1: Anbarasu C. And Balasubramanian P. (2013) .Fruiting phenology of trees in the tropical montane evergreen forest (Shola) of Nilgiri hills, Western Ghats. International Journal of Biological Technology, 4 (3):1-8.
Armatas C.A., Venn T.J., Mcbride B.B., Watson A.E. and Carver S.J. (2016) .Opportunities to utilize traditional phonological knowledge to support adaptive management of social-ecological systems vulnerable to changes in climate and free regimes. Ecology and society, 21 (1): 16.
Literature cited 2: Aruna R. and Balasubramanian P. (2015) .Fruiting phenology of a scrub forest inThiruporur, Eastern Ghats, India.International letters of Natural Sciences, 44:25-30.
Arunprasath A. and Gowathinayagam M. (2015).Reproductive phenology of true mangrove species in Pichavaram mangrove forests, Tamilnadu, India-A comparative account. Journal of Environmental Treatment Techniques., 10 (10): 17-21.
ID: 63837
Title: New Distributional Records of the Himalayan yew in North Western Himalaya, India-A Consequence of Climate Change
Author: Manohar Lal, S.S. Samant and Ashok Singh
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1131- 1136 (2020)
Subject: New Distributional Records of the Himalayan yew in North Western Himalaya, India-A Consequence of Climate Change
Keywords: Himalayan yew, Distribution, Taxus wallichian, Lahaul valley
Abstract: Biological and ecological responses are apparent throughout the globe on plants and animals. In Himalaya, climate change greatly affected distribution and abundance of plants along latitude and elevation because temperature increased 2-5 times more than global average rate. Many treeline, ecotone and community studies are evidence to it, climatic conditions shape the ranges and distribution of species in Himalaya. The Himalayan Yew (Taxus wallichaina Zucc) is an endangered native high value medicinal plant, also shows the biological and ecological responses in the Himalayan region in context to global warming. The present study, investigated the distribution and abundance of Himalayan Yew in the Lahaul valley of the cold region.
Location: T E 15 New Biology building
Literature cited 1: Aswal B.S., Mehrotra B.N.(1994) .Flora of Lahaul-Spiti (a cold desert in North –West Himalaya).Bishen Singh and Mahendra Pal Singh, Dehradun.
Bartkowiak S. (1978).Seed dispersal by Birds. In Bartkowiak et al. The Yew: Taxus baccata L.Warsaw, 139-146.
Literature cited 2: Bhutiyani M.R., Kale V.S.an Pawar N.J. (2007) .Long-term trends in maximum, minimum and mean annual air temperature s across the Northwestern Himalaya during the twentieth century. Clim Change, 85:159-177.
Bhutiyani M.R., Kale V.S. and Pawar N.J.(2010).Climate change and the precipitation variations in the north-western Himalaya:1866-2006.Int.J.Climatol., 30:535-548.
ID: 63836
Title: The influences of seed source on Germination and production of Abnormal seedling in Big-leaf mahogany (Swietenia macrophylla King)
Author: M.V. Durai
Editor: Aarti Chaudhary
Year: 2020
Publisher: Indian Council of Forestry Research & Education.
Source: ENVIS, CES & EWRG, CES
Reference: The Indian Forester Vol. 146 (12) 1126- 1130 (2020)
Subject: The influences of seed source on Germination and production of Abnormal seedling in Big-leaf mahogany (Swietenia macrophylla King)
Keywords: Seed, Seedling, Mahogany, Swietenia macrophylla, Germination
Abstract: The big-leaf mahogany is one of the fast growing and highly demanded tropical timber species in the world. It is widely grown as an avenue tree as well as commercial plantations due to narrow crown, straightness, wide adaptability and desirable wood qualities. The morphological evaluation and grading of seedling at the early is one of the most important aspects for quality planting stock production. The present study was attempted to document the influence of seed source on germination and occurrence of abnormal seedlings in big-leaf mahogany. A total of 25 seed sources collected from Tamil Nadu, Kerala and Karnataka was used in this study. The 100 –seed weight, germination % and number of abnormal seedlings were recorded. The results revealed that the seed source had significant influence on these parameters. The highest germination and branched seedlings were found in Karnataka seed sources. The abnormal seedlings percent was high in Mayampady (Tamil Nadu) where as it was absent in Chaliyarmukku (Kerala).
Location: T E 15 New Biology building
Literature cited 1: Anon.(1976) .Wealth of India, Vol-X, National Institute of Science communication and Information resources, Dr. K.S. Krishna Marg, Pusa Campus ,New Delhi.
Gunaga R.P. and Vasudeva R.(2008b).Twin and triplet seedlings in Garcinia indica.J.Non-Timber Forest Products, 15 (2) : 119-122.
Literature cited 2: Gunaga R.P. and Vasudeva R.(2008b).Twin and triplet seedlings in Mammea suriga: an important aromatic tree species of the Western Ghats, J. Non-Timber Forest Products, 15 (1) :67-68.
Hombe Gowda H.C. Gorgi P.M. and Vasudeva R. (2004) Twin seedlings in Nothapodytes nimmoniana Graham (Icacinaceae): an important medicinal plant.J.Non-Timber Forest Products, 11(2):108-109.