Time filter

Source Type

Wani A.A.,Sher-e-Kashmir University of Agricultural Sciences and Technology | Joshi P.K.,Jawaharlal Nehru University | Singh O.,Forest Research Institute FRI | Shafi S.,Sher-e-Kashmir University of Agricultural Sciences and Technology
Journal of Mountain Science | Year: 2016

The role of forests is being actively considered under the agenda of REDD+ (Reducing Emissions from Deforestation and Forest Degradation plus) aimed at reducing emissions related to changes in forest cover and forest quality. Forests in general have undergone negative changes in the past in the form of deforestation and degradation, while in some countries positive changes are reported in the form of conservation, sustainable management of forests and enhancement of carbon stock. The present study in the Kashmir Himalayan forests is an effort to assess historical forest cover changes that took place from 1980 to 2009 and to predict the same for 2030 on the basis of past trend using geospatial modeling approach. Landsat data (Multispectral Scanner (MSS), Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM+)) was used for the years 1980, 1990 and (2001, 2009) respectively and change detection analysis between the dates was performed. The maps generated were validated through ground truthing. The study area (3375.62 km2) from 1980-2009 has uffered deforestation and forest degradation of about 126 km2 and 139.02 km2 respectively which can be claimed under negative options of REDD+, while as the area that experienced no change (1514 km2) can be claimed under conservation. A small area (23.31 km2) observed as positive change can be claimed under positive options. The projected estimates of forest cover for 2030 showed increased deforestation and forest degradation on the basis of trend analysis using Cellular Automata (CA) Markov modeling. Despite the fact that country as a whole has registered a net positive change in the past few decades, but there are regions like Kashmir region of western Himalaya which have constantly undergoing deforestation as well as degradation in the past few decades. © 2016, Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg. Source

Tripathi N.,P.A. College | Kumar S.,P.A. College | Singh R.,P.A. College | Singh C.J.,Ministry of Environment and Forest | And 2 more authors.
Oriental Journal of Chemistry | Year: 2013

Girardinia heterophylla (Family: Urticaceae) roots has not been studied so far. The swollen base of roots were collected from and extracted with petroleum ether. The dried petroleum extract was subjected to column chromatography and TLC. Three compounds were isolated from the roots of Girardinia heferophylla. On the basis of spectral analysis they were identified as -sitosterol, y-sitosterol and ursolic acid. In this study the presence of y-sitosterol and Ursolic acid in roots of Girardinia heterophylla has been reported for the first time. Source

Tripathi N.,P.A. College | Kumar S.,P.A. College | Singh R.,P.A. College | Singh C.J.,Ministry of Environment and Forest | And 2 more authors.
Oriental Journal of Chemistry | Year: 2013

The unknown compound of code number (GHRPTB) was isolated from roots of Girardinia heterophylla. After being collected and analyzed by GC-MS and compared with NIST standard chart library, it was declared to be γ-sitosterol, an epimer of β-sitosterol. Source

Rawat J.M.,Forest Research Institute FRI | Rawat J.M.,Parnkuti Anantpur University Road | Rawat J.M.,Central Institute of Medicinal and Aromatic Plants | Rawat B.,Gb Pant Institute Of Himalayan Environment And Development | And 2 more authors.
Biotechnology Letters | Year: 2013

Among five hairy root lines of Picrorhiza kurrooa that were established through Agrobacterium rhizogenes, one (H7) was selected for encapsulation due to high accumulation of picrotin and picrotoxinin (8.3 and 47.6 μg/g DW, respectively). Re-grown encapsulated roots induced adventitious shoots with 73 % frequency on MS medium supplemented with 0.1 μM 6-benzylaminopurine, following 6 months of storage at 25 °C. Regenerated plantlets had 85 % survival after 2 months. Regenerants were of similar morphotype having increased leaf number and branched root system as compared to non-transformed plants. The transformed nature of the plants was confirmed through PCR and Southern blot analysis. Genetic fidelity analysis of transformed plants using RAPD and ISSR showed 5.2 and 3.6 % polymorphism, respectively. Phytochemical analysis also showed that picrotin and picrotoxinin content were similar in hairy root line and its regenerants. © 2013 Springer Science+Business Media Dordrecht. Source

Tanaka N.,National Museum of Nature and Science | Sugawara T.,Tokyo Metroplitan University | Aung M.M.,Forest Research Institute FRI | Murata J.,University of Tokyo
Phytotaxa | Year: 2015

A new species, Impatiens kingdon-wardii Nob. Tanaka & T. Sugaw. (Balsaminaceae), is described and illustrated from Mt. Victoria (Natma Taung), northwestern Myanmar. This species is distinguished from any other species by the pink orbicular, densely pubescent lateral sepals, appearance of which is like two ears of the mouse, and upper lobes of lateral united petals with hairy club-shaped protuberance. © 2015 Magnolia Press. Source

Discover hidden collaborations