Pravin Rawat

Himalayan Forest Research Institute Shimla · Forest Genetics and Tree Improvement

Insects are universal components of ecosystems, and their roles in maintaining ecological balance are multifaceted. They also show a sensitive response to environmental health. Abundance, diversity, and behaviour of insects are sensitive to changes in their environment, rendering them an invaluable indication of ecosystem health. The life cycles of...

Insects are universal components of ecosystems, and their roles in maintaining ecological balance are multifaceted. They also show a sensitive response to environmental health. Abundance, diversity, and behaviour of insects are sensitive to changes in their environment, rendering them an invaluable indication of ecosystem health. The life cycles of...

is one of the dominant species of the Indian Himalayan region. The species is well known for its beautiful Rhododendron arboreum flowers and ecological importance. The flowers of is used by the local people to make juice, jam, syrup, chutney, honey, squash, R. arboreum etc. But, increasing demand of its products and uncontrolled collection of flowe...

Climate change, especially extreme weather events, is threatening agricultural production worldwide. The anticipated increase in atmospheric temperature may reduce the potential yield of cultivated crops. Agroforestry is regarded as a climate-resilient system that is not only profitable, sustainable, and adaptable; but also has strong potential to...

The conservation of forest biodiversity is imperative for maintaining ecological balance and sustaining vital ecosystem services. Facing threats such as habitat loss, climate change, and unsustainable resource exploitation, comprehensive strategies are essential. Conservation efforts begin with a thorough understanding of forest biodiversity, ident...

After-ripening (AR) is a time and environmental regulated process which determines the germination potential of the dry seeds. The after-ripened seeds swell after absorbing water and initiates metabolic activity linked to the germination process. Such after-ripening process is not studied in detail in Schleichera oleosa species. Therefore, an exper...

After-ripening (AR) is a time and environmental regulated process which determines the germination potential of the dry seeds. The after-ripened seeds swell after absorbing water and initiates metabolic activity linked to the germination process. Such after-ripening process is not studied in detail in Schleichera oleosa species. Therefore, an exper...

Development of natural wood preservatives for the protection of wood against to the wood degrading agencies. Present investigation was designed to determine the feasibility of natural plant extracts on wood degradation and chemical constitute after decay test of Pinus roxburghii wood. During the study two plants species were selected for the wood p...

Present study was conducted to test the effect of different growing media on Schleichera oleosa seeds. The experiment was carried out at the Forest Tree Laboratory, Dehradun, Uttarakhand during 2019-20. The seeds of S oleosa were collected from 10 healthy mature trees during the last week of July to first week of August. The seeds were extracted ma...

Prioritization of important FGR species of Uttarakhand and develop short term, medium term and long term storage protocol for 100 ecologically and socio-economically important trees, shrubs and climber species.

Forest Research Institute (FRI) is a premier institute in India under the Indian Council of Forestry Research and Education (ICFRE). This study's main aim was to examine the research productivity of the FRI, Dehradun, during 1990-2019. The data for the present study were collected from the Scopus database. VOS viewer with version 1.6.16 was adopted...

Uttarakhand is a mountainous State in Northern India known for its diverse eco-system, rich faunal & floral biodiversity, rivers & valleys and a rich cultural heritage. The total population of the state is 1.01crores (census 2011) out of which most of the people are poor accounting for 11percent of the population is below the poverty line as compar...

The present study was conducted to investigate the morphological variations in fruit, seed and seedling characteristics of Schleichera oleosa (Lour.) Oken. along the altitudinal gradient in Doon valley of Uttarakhand. The seeds were collected from three different altitudinal zones viz. lower altitude (250-500m), middle altitude (500-750m) and upper...

Seeds of Buxus wallichiana Baillon are dormant and not much information is available on their shelf life under storage conditions. Therefore, this study was conducted to investigate the seed storage behaviour of B. wallichiana, an important woodcraft species of the Indian Himalayan Region. Healthy matured fruits of B. wallichiana were collected fro...

To assess the allelopathic effect of Dendrocalamus stocksii Munro. on growth and yield of cowpea (Vigna unguiculata), leaves leachate (25, 50, 75 and 100 per cent concentration) was prepared by soaking dry leaves in tap water for 24 hours in a ratio of 1:10 weight by volume. Results revealed that the concentration-dependent inhibitory effect of lea...

Schleichera oleosa (Lour.) Oken. (Syn. S. trijuga Willd) ver. Kusum; a commercially important tree species of monotypic genus Schleichera belongs to family Sapindaceae. It is distributed in the Indian subcontinent and Southeast Asia from Sub Himalayan tract, Sutlej to Nepal, Chota Nagpur, Central India and the peninsula generally and throughout Bur...

Ex-situ conservation of germplasm of some important tree species of Uttarakhand

An experiment was carried out to evaluate the effect of different agroforestry systems on soil physico-chemical and biological properties. The results revealed that different agroforestry tree species showed the positive impact on soil physic-chemical and biological properties in comparison to sole agriculture cropping system. At 0-15, 15-30 and 30...

Present study was conducted to assess the allelopathic effect of leaf and bark aqueous extracts of Celtis australis on Triticum aestivum, Hordeum vulgare, Brassica rapa, Lens culinaris and Vigna umbellate under In-vitro condition. Different leaf and bark aqueous extracts 5%, 10%, and 15% were used to irrigate the seeds of test crops. The results re...

The present study was conducted to assess allelopathic effect of Dendrocalamus stocksii (Munro.) on the growth and yield of ground nut (Arachis hypogaea). Bamboo leaf leachate was prepared by soaking the dry leaves in tap water for 24 hours in a ratio of 1:10 w/v. Using prepared leachate as stock solution the leachate of various concentrations viz....

An experiment was carried out to assess allelopathic effect of leaf leachates of solid bamboo [Dendrocalamus stocksii (Munro.)] on growth and yield of finger millet [Eleusine coracana L. (Gaertn.)]. Bamboo leaf leachate was prepared by soaking dry leaves in tap water for 24 hours in a ratio of 1:10 (w/v). Using this as stock solution, various conce...

A field experiment was carried out to evaluate the growth, yield, quality attributes and soil characteristics under different agroforestry tree species at Agroforestry Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar during April 2015 to January 2016. The experiment was laid out in a Randomized block design (RBD) with...

Breaking seed dormancy of Buxus wallichiana

Present investigation was carried out to study the allelopathic effect of solid bamboo Dendrocalamus stocksii on growth and yield of paddy. Bamboo leaf leachate was prepared by soaking the dry leaves in tap water for 24 hours in a ratio of 1:10 weight by volume. The prepared leachate was diluted to three different concentrations i.e. 25, 50 and 75...