ID: 57922
Title: Influence of the culture medium nitrogen concentration of alkaloid profile and reserpine content of the Rauwolfia serpentina plant roots
Author: G S Panwar and S K Guru
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Alkaloids, culture medium, HPLC, Rauwolfia serpentina, Reserpine
Abstract: In the present investigation, total nitrogen content of Rauwolfia serpentina plant parts collected from different localities and influence of culture medium nitrogen doses on the total alkaloid profile as well as on the reserpine production was studied. The total nitrogen content of R. serpentina plant parts, including roots (wild, cultivated and in vitro regenerated), leaves (wild and cultivated) and callus regenerated in MS and BS medium, were estimated by kjeldahl method. It was observed that the roots regenerated through in vitro culture in MS medium contained higher nitrogen content (7.6%) as compared to the cultivated and wild roots. The alkaloid profiles of the R. serpentina roots and callus, regenerated in MS and B5 medium supplemented with different nitrogen doses (half, normal and double), revealed that the alkaloid contents increased with increasing medium nitrogen. An increase of 1.96 fold in reserpine content observed in MS and B5 medium supplemented with double nitrogen doses, respectively.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57921
Title: Ethnomedical plants of Sunderdhunga valley, Western Himalaya, India- Traditional use, current status and future scenario
Author: Balwant Rawat, K Chandra Sekar and Sanjay Gairola
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Critically endangered, ethnomedicine, vulnerable, Western Himalaya
Abstract: The Sunderdhunga valley harbours a number of medicinal plants used by the local people in different purposes. A total of 76 ethnomedicinal plants have been enumerated in the present communication with correct binomials, family, life form, local name along with detailed ethnomedicinal uses. These species belong to 27 families and 56 genera. Out of total species recorded, 82% belongs to only 11 families, on the other hand 48% of total families represented by single species. Fifteen of the recorded species are categorized under different threat category, constituting about 20% of total species. Major cause of depletion of these species is over exploitation of the wild populations and illegal trade. Important measures required to conserve the biodiversity of the valley include documentation of the traditional ecological and remedial knowledge of the locals for sustaining future generation and motivation to cultivate rare or threatened species in nearby villages.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57920
Title: Effect of thickness of polythene sheet and duration of solarization on soil temperature in primary nursery
Author: Saresh, N V Mahantappa Sankanur, Archana Verma, S L Madiwalar and Aalok Yewale
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Solarization, mulching, polythene sheet, primary nursery
Abstract: The study indicated that, solarization treatment receiving mulching with thin polythene sheet (0.03 mm) recorded significantly higher soil temperature at all stages. Soil temperature recorded in treatments with thin (0.03 mm), medium (0.06mm) and thick polythene sheet (0.12 mm) was 56.0, 54.4 and 53.70C respectively. Soil temperature in primary nursery bed was significantly higher with longer duration of solarization than with short or medium duration 54.3, 54.4 and 55.30C respectively. Thin (G1) or medium (G2) polythene sheet in combination with longer duration of solarization (D3) significantly increased the soil temperature at all the intervals of study (57.30C).
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57919
Title: Analysis of plant, host and management relationships for sandalwood (Santalum album) cultivation in new subtropical locality of hill region of Indian Himalayas
Author: Vipan Guleria
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Santalum album, growth performance, leguminous trees, secondary host, Dalbergia sissoo
Abstract: Santalum album, a semi parasitic small tree which was introduced in Himachal Pradesh, has shown good growth over last few years. But there is no scientific information regarding suitable long term hosts of the species in this region. This paper examines sandalwood growth over five years at the experimental farm of Regional Horticultural and Forestry Research Station, Bhota, Himachal Pradesh situated at latitude 31041 ' 33.43" north and 76028 ' 50.53"E longitude. The four types of planting geometries and three most common leguminous tree species Acacia catechu, Dalbergia sissoo and Leucaena leucocephala one non leguminous tree species Morus alba were tested as secondary host of sandal wood. Hexagonal planting of Dalbergia sissoo as host resulted in maximum tree height and diameter of sandal wood tree viz. 3.23m and 7.20 cm, respectively. Sandal wood growing with Dalbergia sissoo recorded maximum number (702) of leaves per branch and with Morus alba had maximum internodal length of 7.0 cm. The over all growth was higher in association with the leguminous trees as host in general and Dalbergia sissoo in particular.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57918
Title: Habitat and life form analysis on endemism in the family Asteraceae from Karnataka state
Author: R Manikandan and S K Srivastava
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Habitat, life form, endemic taxa, Asteraceae, Karnataka
Abstract: The present article deals with detailed information on habit, habitat, distribution, flowering and fruiting phenology and conservation status of 39 taxa belonging to 16 genera which are endemic to India and confining their distribution in the state of Karnataka.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57917
Title: Convection heating based vacuum kiln for timber drying and its performance
Author: N K Upreti, M C Kukreti, R P Kandpal and Chetan Swaroop
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Convection heating, moisture content, seasoning kiln, timber dyring, vacuum drying, Pinus roxburghii
Abstract: The technology of vacuum drying of timber has been commercialized in few developed nations. Presently the vacuum kiln is costly process for Indian entrepreneurs due to absence of indigenous equipment in the country. Vacuum drying of timber is very useful in terms of drying cost and drying period. A vacuum kiln of 60 cft capacity has been developed indigenously for fast and efficient dyring of Indian timbers including plantation timbers with a view to reduce drying time as well as drying cost as compared to traditional steam based drying. It is based on convection drying. The present paper deals with its features and performance based on vacuum drying of timber of Pinus roxburghii.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57916
Title: Biological and phylogenetic analyses, evidencing the presence of Gnomoniopsis sp in India, causing canker of chestnut trees: A new report
Author: Mudasir A Dar and Mahendra Rai
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Chestnut, Gnomoniopsis sp., r DNA, ITS, phylogeny
Abstract: In India the chestnut population is confined to the Northern part of the country particularly in Jammu and Kashmir. Twenty seven isolate of genus Gnomoniopsis were recovered in pure culture from infected chest nut trees growing in different places of Jammu and Kashmir. The morphological characteristics and the phylogeny of these isolates proved it to be Gnomoniopsis. The molecular identification of the isolates was carried out by rDNA based ITS markers, using ITS1, 5.8s and ITS2 for amplification and these rDNA regions were used to defien the isolates as Gnomoniopsis. It is a first report of occurrence of Gnomoniopsis sp. from India.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57915
Title: Germination of Terminalia bellercia (Gaertn.) Roxb. as affected by variouis potting media
Author: V S Patel, N S Patil and M B Tandel
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Potting media, Terminalia bellerica (Gaertn.) Roxb. Seedling, Growth attributes
Abstract: The present investigation on germination of Terminalia bellerica (Gaertn.) Roxb. as affected by various potting media of sand, farm yard manure (FYM), clay soil, loamy soil, vermiculite and coco-peat. There were 18 different combinations of potting mixtures. The experiment was conducted in completely randomized block design with three replications. The effect of potting mixtures on percentage of germination, days taken for complete germination, root length, shoot length, number of leaves per plant, plant fresh weight and plant dry weight after two months of seed sowing were examined. Among all these mixtures, sand, FYM and loamy soil in 1:2:1 ratio was recorded best in most of the growth parameters.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57914
Title: Synchronizing effects of young plantation of Dalbergia sissoo Roxb. with Zea Mays in Agri-silvi agroforestry system
Author: R B Singh, Charan Singh and Jayshree Ardey
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Spacing, Dalbergia sissoo, maize, sustainability, growth, yield, agri-silviculture agroforestry system
Abstract: One year old seedlings of Dalbergia sissoo planted at three differetn spacing of 4 x 4m , 5 x 5m and 6x 6m along with control and hybrid maize crop (HQPM1) also grown at a spacing of 60 cm (as treatment -1) and 120 cm (as treatment -2) tree to crop line with three replications in Randomized Block Design.
Average growth of height and collar diameter of Dalbergia sissoo was observed as 327.62 cm and 5.13 cm respectively when grown along with maize crop in all spacing. The maximum increase in height (189.78 cm) and collar diameter (4.77 cm) was observed in control with the tree spacing of 5 m x 5m followed by initial height and collar diameter. The maize yield (with crop cover), of 38.21 qh-1 and stalk yield of 54.73 qha-1 was found maximum in the tree spacing of 5m x 5m with 60 cm tree to crop line spacing. The young plantation of D. sissoo at 5m x 5m distance with 60 cm tree to crop line spacing of maize proved to be best combination giving maximum yield of maize crop in Agri-Silviculture agroforestry systems.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57913
Title: Improvement through selection of plus trees in Khasipine (Pinus kesiya)
Author: Ombir Singh and N Mahanta
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Improvement, point grade method, Pinus kesiya, Plus trees
Abstract: 33 plus trees of Pinus kesiya were selected in an extensive survey conducted in the state of Meghalaya using point grade method of selection. Initially candidate plus trees (CPT ' s) along with five check trees were selected and analyzed to plus trees. During selection, phenotypic characters like stem, bole, and branching form were given more emphasis to ensure better production of timber. The plus trees over check trees could be improved by 14.75, 15.74 and 14.23% for height, girth at breast height (GBH) and crown bole height (CBH), respectively. Maximum improvement of 138.61, 105, 99 and 51.53% was recorded for crown, straightness, roundness, and pruning ability, respectively, which might play an important role in accepting this species in plantation programmes. The improvement achieved gthrough selection may serve as an indicator for possible genetic gain after field-testing through progeny trials in the species.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57912
Title: NTFP collection: A case study in opportunity costs
Author: C K Mishra and G V Ramakrishna Naidu
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Non-timber forest product, opportunity cost, NREGS, District Rural Development Agency, Girijan Cooperative Corporation, Eco Develoment Committee
Abstract: The NTFPs have obtained dubious distinction as being both ' safety net ' and ' poverty trap ' . When people have better employment opportunities, collection of NTFPs become livelihood opportunity of last resort. This was observed in the study area of forest of Chittoor East and Tirupati Wildlife Management Divisions of Andhra Pradesh after implementation opportunities for the forest dependent people nearer to their habitations and reducing dependency on forest resources.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57911
Title: Valuation of ecosystem goods and services from forests in India
Author: V K Bahuguna and N S Bisht
Editor: Dr P P Bhojvaid
Year: 2013
Publisher: The Indian Forester, Vol 139, No 1, January 2013
Source: Centre for Ecological Sciences
Reference: None
Subject: The Indian Forester
Keywords: Economic value, Goods and services, biodiversity, Ecosystem services, carbon sequestration
Abstract: An attempt has been made in this paper to estimate the economic value of the goods and services provided by the forests of the country. The total economic value has been estimated at 6.96 lakh crore annually, which is approximately 6.86% of the GDP and represents the bare minimum approximate values of goods and services generated by forests. Valuation of certain services such as waste treatment, biodiversity, cultural and traditional values of tress and forests could not be assessed due to lack of proper methodologies; therefore the total value may be even higher than what has been projected in this paper.
Location: Kumta Field Station
Literature cited 1: None
Literature cited 2: None
ID: 57910
Title: Role of biodiversity in food security
Author: V Mary Kensa
Editor: Dr R K Trivedy, Dr P K Wong, Dr Sadhana Sharma
Year: 2012
Publisher: Global Science Publications, Vol 14, No 4, 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Microbiology, Biotechnology and Environmental Sciences
Keywords: Biodiversity, food security, climate change
Abstract: Biodiversity is our life. This paper discusses what is biodiversity and food security, future challenges, and how it influences the agriculture and nutrition.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57909
Title: Role of blue green algal system in minimizing methane flux from rice soils
Author: A Lakshmanan, A Sankar, V Geethalakshmi, P Latha and N U Sekhar
Editor: Dr R K Trivedy, Dr P K Wong, Dr Sadhana Sharma
Year: 2012
Publisher: Global Science Publications, Vol 14, No 4, 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Microbiology, Biotechnology and Environmental Sciences
Keywords: Methane, paddy, blue green algae, Azolla
Abstract: Global warming induced by increasing concentration of greenhouse gases (GHGs) in the atmosphere is a matter of great environmental concern. A field experiment was conducted at Anbil Dharmalingam Agricultural College and Research Institute, Trichy, Tamil Nadu, India during the Rabi seasons of 2010-11, to study the methane emission rates from rice field under different organic amendments using rice variety TNAU (R) TRY1 with the duration of 135 days. Treatments involved were T1-Control, T2-Blue Green Algae, T3-Azolla, T4-Farm Yard Manure, T5-Green Leaf Manure, T6-Blue Green Algae+ Azolla, T7-Farm Yard Manure + Green Leaf Manure, T8-Blue Green Algae + Azolla + Farm Yard Manure + Green Leaf Manure. Plant-mediated CH4 emission flux from the experimental plots was measured by closed chamber method at 15 days intervals. In the present study, combined application of organics and blue green algae not only recorded higher yield, but found to emit less methane in paddy cultivation than the application of organics alone. Hence, this study reiterates that biofertilization of paddy fields with blue green algae and Azolla is a potential climate change mitigation strategy due to their effect in minimizing methane emission, besides yield enhancement by nitrogen fixation.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57908
Title: Seasonal fluctuations in zooplankton of a freshwater lake
Author: O Sudhakar, P Neela Rani, G Venugopal, and J P George
Editor: Dr R K Trivedy, Dr P K Wong, Dr Sadhana Sharma
Year: 2012
Publisher: Global Science Publications, Vol 14, No 4, 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Microbiology, Biotechnology and Environmental Sciences
Keywords: Powai lake, zooplankton, seasonal variations, eutrophication
Abstract: The present study was conducted in Powai Lake, Mumbai. Water samples were collected and analysed for various physico-chemical parameters. Qualitative and quantitative analysis of zooplankton was also done. The zooplankton samples were observed to contain 14 species beloning to Copepoda, Cladocera and Rotifera groups. In the order of their abundance, these three groups were Copepoda, Cladocera and Rotifera. Copepods were most abundant during summer with a mean of 296 nos/L.. This was followed by 277 nos/L during spring and 217 nos/L in winter. Low population of this group was observed in monsoon with 171 nos/L. Cladocerans were most abundant during spring with 327 nos/L. This was followed by a second peak of 305 nos/L during wingter. In summer, the maximum of Caldocera was 282 nos/L. Low abundance of 254 nos./L was observed during monsoon. Rotifers were most abundant in winter with 220 nos./L. This was followed by a second peak of 204 nos./L during spring. Third peak abundance of rotifers was recorded during summer with 157 nos. ln mosoon, this group was least abundant with a population of 154 nos. /L in the lake.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None