D.R. Singh

D.R. Singh
ICAR-NRC FOR ORCHIDS SIKKIM · HORTICULTURE

Ph.D

About

192
Publications
138,138
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1,182
Citations
Citations since 2017
93 Research Items
775 Citations
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2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150

Publications

Publications (192)
Article
Cymbidium whiteae King & Pantl is an endemic and endangered orchid species found in Sikkim, India. We evaluated the current population distribution and conservation needs of this species during 2017–2019 in North Sikkim, Sikkim, India. The distribution of the species ranged from 1020 to 1479 m a.s.l. but was confined to a small restricted area of t...
Article
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Chapter
India is very rich in orchid genetic resource. It is estimated that about 1300 species occur within the political boundaries of India, of which nearly 150 species are used in Ayurvedic, Siddha, Unani, and tribal system of medicine. The country has been paying attention to ornamental orchids for the use in floriculture industry, but the orchid thera...
Article
Identifi cation is a major bottleneck during germplasm exploration and collection of wild species of orchids. An application named “Orchidopedia” is developed on the basis of database of wild orchids. This app is available offl ine and works independently. It has vast information for about 172 species belonging to 56 genera of wild orchid species....
Article
Nutritional requirement of orchids is similar to other plants. Still, being mostly epiphytic, they have special mechanisms by which they can survive in limited nutrient condition without showing any deficiency symptom. Also because of their epiphytic nature, domesticating them as a pot plant is quite challenging. Nutritional management in orchids i...
Patent
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Copyright Certificate- Orchidopedia Android Application
Technical Report
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DUS Test Guidelines in Paphiopedilum orchids
Patent
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Copyright application of Orchids Farming Mobile Application registered.
Research
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Production Management of Tropical and Subtropical Orchids
Data
Orchidopedia is an application that contains vast information about native orchid species of North Eastern states of India. The objective of this application is to focus on a massive database on wild orchid species to compile in a single and small application which is available offline and also works independently. The application is available on G...
Research
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Orchids are known to have medicinal properties and about 7500 species are being used in Indian system of medicine (ISM) and also utilized in other various purposes like spice e.g. vanillin, herbal tea, vegetables, pickles, ice cream, floral ornaments, religious uses, perfumery, dried flower craft, essential oils, etc. The orchid database is a web-b...
Article
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The database has become one of the primary sources for enhancing the data. It is one of the most commonly used and implemented methods, adopted by various organizations and companies at national and international levels for the efficient access, retrieval, storage, search of the data from the database. One of the commonly used RDBMS (Relational Dat...
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In India, there are 1263 species (155 genera) of orchids distributed throughout the country. Till date, more than 1, 00,000 orchid hybrids are known globally and cultivated for cut flowers and potted plants. Further new ones are being registered every month. In North-East India, Cymbidium and Dendrobium genera are highly productive whereas, in Sout...
Article
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India is bestowed with 45000 plant species out of which about 15000-20000 plants are known to have medicinal properties and about 7500 are being used in Indian system of medicine (ISM). India is home of about 1450 species of orchids which are mostly confined to North East Region of the country. The distribution of orchid species in different States...
Article
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The life cycle of an orchid is not essentially different from that of any other flowering plant. When the pollinator leaves one or more pollinia on the stigma, the pollen tubes germinate and grow down the centre of the column to reach the developing ovules in the ovary. This often causes the sides of the stigma to swell around the stigma and the en...
Article
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Mobile App-Android Application on ‘Orchid Farming’based on North Eastern States of India
Poster
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Diseases in orchids
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Conference Paper
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The hill regions of India include Himachal Pradesh, J&K, Uttarakhand and the North Eastern region (NE) comprising states of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Tripura and Sikkim, have great potential for commercial cultivation of flowers and other ornamentals due to its diverse geo-climatic conditions and floral biodiv...
Poster
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8th Indian Horticulture Congress Poster No. 489
Conference Paper
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2016). Drying Techniques in Orchids Dry flowers are essential export items both in Indian and International markets and Indian export basket composed of 71% dry flowers which are exported to mainly USA, Japan, Australia, Russia and Europe. The demand for dry flowers is increasing at an impressive rate of 8-10 per cent annually thus offering a lot o...
Conference Paper
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2015). Post-harvest management and value addition in orchids. India is endowed with 160 genera and more than 1300 species of orchids including commercially important species like Arachnis, Cattleya, Phalaenopsis, Cymbidium, Dendrobium, Paphiopedilum, Vanda and Renanthera. The orchids have taken a significant position in cut flower industry due to i...
Conference Paper
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DUS guidelines in Mokara orchids
Conference Paper
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Organic production management
Technical Report
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Technical Report
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Article
Calla lily (Zantedeschia elliottiana W. Wats.) is an attractive cut flower and a popular pot plant in commercial floriculture industry. This is an introduced crop in Andaman and Nicobar Islands and the use of growing media as substrate showed potential influence on growth and yield of cut flowers when compared to soil media. The growing media conta...
Article
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The qualitative and quantitative analysis of the native orchid Dendrobium nobile was taken into consideration to validate the uses in traditional medicine. Methanol extracts of different parts of Dendrobium nobile reveal the presence of bioactive compounds such as, Vitamin A Aldehyde; Longifolene; 1-Heptatriacotanol; Z, Z-6, 28-Heptatriactontadien-...
Article
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Orchids are one of the highly commercial crops in floriculture sector and arerobustly exploited due to the high ornamental and economic value. ICAR-NRC for Orchids, Pakyong, Sikkim, India majorly focused on collection, characterization, evaluation, conservation and utilization of genetic resources available in the country particularly in north-east...
Article
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Morphological characterization is the basic tool for improvement programme of orchids which is required for conducting Distinctiveness, Uniformity and Stability (DUS) testing to provide and promote an effective system of plant variety protection. It provides rights for breeders and farmers to exploit or develop new plant varieties, to allow access...
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Conference Paper
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Organic farming indicates a food production system where traditional wisdom and ancient knowledge of Indian Farming such as crop rotations, mixed cropping, mixed farming, organic manuring, residue recycling, agro-forestry systems are amalgamated with modern practices of crop cultivation and livestock management to enhance profitability without depe...
Article
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The North East India comprising of eight states, namely Assam, Arunachal Pradesh, Meghalaya, Manipur, Mizoram, Nagaland, Sikkim and Tripura have a total geographical area of 262180 km 2 and is characterized by fragility, marginality, inaccessibility, cultural heterogeneity, ethnicity and rich in biodiversity. The traditional agricultural systems in...
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Among orchids, Cymbidium, Dendrobium, Vanda, Phalaenopsis, Aerides, Mokara and Paphiopedilum and their related hybrids are highly valued for long lasting cut flowers. The six main techniques used for orchid propagation are division, backbulbs, serial cuttings, kiekies, micro-propagation and seed culture. Conventionally, sympodial orchids like Cattl...
Article
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Cymbidiums are highly valued for cut flowers, hanging baskets and potted plants. In the present investigation, the experiments were conducted to study the effect of liquid organic manure, tree barks and potting media on growth and development of Cymbidium 'Winter Beach Sea Green' at subtropical belt of Sikkim Himalaya. Spraying of liquid manure wit...
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Region wise bio-diversities of different orchid species of India and its conservation through legislative measures, ex-situ and in-situ ways and bio-piracy of endangered species have been reviewed.
Article
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There are about 25,000 species of orchids estimated to occur in the world. In India, about 1350 species belonging to 186 genera represent approximately 5.98% of of the flowering plants in India. The Eastern Himalayas and No Peninsular India species like tessellate reported to contain alkaloids, triterpen medicinal plants, is a vital part of Ayurved...
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Description, Production technology and uses of some medicinal orchids
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ARTICLE INFO ABSTRACT There is immense potential for vertical and horizontal growth in horticulture sector in North Eastregion. At present horticultural crops account for only 18.60% of cultivated area. This share is highest in Sikkim followed by Manipur, Arunachal Pradesh, Me and Nagaland. erratic precipitation and sea level rise, greenhouse gas e...
Article
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Phalaenopsiscomprises of 70 species of monopodial orchids and they are distributed in Asia, Philippines, Indonesia, Malayasia, Australia and New Guinea. They are commonly known as 'Moth Orchids'. It is commonly used as pot plants and cut flowers and useful in hotel arrangements, hanging arrangements, households, boutique stores, weddings, funerals,...
Research
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Field experiment regarding the effect of three levels of nitrogen control, lowest and highest dose per hectare which was supplied by means of urea and three levels of spacing that is 30cm, 45cm and 60cm each were carried out and cauliflower seedlings were transplanted in the field on 28 December 2013 at the Vegetable Farm of Udai Pratap Autonomous...
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Sikkim is one of the most beautiful tourist hill states with tremendous biodiversity wealth. Cymbidium orchid dominates the states for hobby gardeners and commercial cultivating farmers. Handicraft is a part of hobbies and livelihood of the indigenous communities of the region. The Lepcha tribe craftsmen based on dried leaves of Cymbidium orchid is...
Chapter
Orchidaceae is one of the most fascinating family marking an important ranked in the plant kingdom, occupying the second largest family amongst the angiosperms. In India the family represents ~1400 species which are distributed from tropical to temperate regions. The north eastern states like Arunachal Pradesh followed by Sikkim, Mizoram and West B...
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Asplenium nidus L. is one of the most important terrestrial fern in Andaman and Nicobar Islands with great ornamental value. Inter simple sequence repeat (ISSR) analysis was used to study the genetic diversity of the species A. nidus L. collected from different geographical locations of the Island. Among 15 ISSR primers screened, 9 primers produced...
Research
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The experiment on thirty five genotypes of Indian mustard (Brassica juncea L. Czern & Coss) was carried out during 2014-2015 in Completely Randomized Design (CRD) with three replications at Seed Testing Laboratory (STL) of Seed Technology Section, Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad (U.P.) India, in germinator...
Research
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The experiment on thirty five genotypes of Indian mustard (Brassica juncea L. Czern & Coss) was carried out during 2014-2015 in Completely Randomized Design (CRD) with three replications at Seed Testing Laboratory (STL) of Seed Technology Section, Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad (U.P.) India, in germinator...
Article
Indigenous plants are an important component of the traditional food and health systems of rural and tribal communities in tropical regions. However, they do not attract much attention from researchers or in commercial markets. The present study investigated 42 indigenous, under-utilized vegetable plants from the Andaman and Nicobar Islands of Indi...
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The present investigation was undertaken to study the flora of Vindhya region natural forest of Mirzapur at Devrikala". The study revealed that a total of 1078 plant (77 Trees, 894 Herbs, 107 Shrubs) belonging to 17 families were recorded. Dominant families are Poaceae (Herb) (208), Asteraceae (shrub) (29), Burseraceae (tree) (16). The soil of the...
Article
Tank irrigation is an important source of irrigation in rainfed region and has a less investment structure with few environmental problems. Despite several economic and environmental benefits, the performance of tanks has been poor due to lack of proper management and weak community participation. For effective management, the factors which affect...
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A study was conducted to estimate the influence of gibberellic acid (GA3) at different concentrations in different time intervals on seed germination and seedling growth of kagzi lime. The results revealed that Maximum germination percentage (95%) was recorded under treatment with GA3 80 ppm for 12 hours, rate of germination of seeds (25 days), hei...
Article
The study investigated genetic diversity in Moringa oleifera Lam. samples (63) from nine islands in Andaman and Nicobar Islands (India) and their relatedness with samples (5) from their probable source regions in mainland India. The polymerase chain reaction analysis with polymorphic random fragment polymorphic DNA (RAPD) (5) and inter simple seque...
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The term 'Yoga' is originated from the Sanskrit word 'yug' which means "to join". It signifies union between the individual soul (jivantma) and the universal soul (parmatma). It aims to get relief from pain and sufferings. Yoga is a way of attaining perfect health by maintaining harmony and achieving optimum functioning on three levels mainly physi...
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A superior breeding line (NRCO/PlxPw/2013/29) of Paphiopedilum progeny was identified and characterized that was developed using P. ‘Winston Churchill’ and Paphiopedilum lawrenceanum as parents. Inflorescence - solitary type with dominating flower size over the foliage. Moderately dense shiny purple colour hairs present on the surface of the pedunc...
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The present investigation was carried out to evaluate the “effect of Gibberellic Acid (GA) different concentrations at different time intervals on seed germination and seedling growth of Rangpur Lime” during the year 2010-2011 at the Department of Horticulture, SHUATS, Allahabad. The experiment was laid out in simple Randomized Block Design (RBD) w...