O
Onkar Singh
Researcher at Rice University
Publications - 146
Citations - 3421
Onkar Singh is an academic researcher from Rice University. The author has contributed to research in topics: Drought tolerance & Nanoparticle. The author has an hindex of 26, co-authored 132 publications receiving 2787 citations. Previous affiliations of Onkar Singh include Post Graduate Institute of Medical Education and Research & University of Massachusetts Amherst.
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Journal ArticleDOI
Hydrogen sensor based on graphene/ZnO nanocomposite
TL;DR: Graphene/Zinc oxide (ZnO) nanocomposite was prepared by in situ reduction of zinc acetate and graphene oxide (GO) during refluxing as mentioned in this paper.
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ZnO assisted polyaniline nanofibers and its application as ammonia gas sensor
TL;DR: In this paper, the synthesis of polyaniline nanofibers in the presence of varying amounts of zinc oxide has been reported, in which the homogeneous PANI nanofiber were prepared through template approach, and the ZnO nanoparticles were used as template.
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From QTL to variety-harnessing the benefits of QTLs for drought, flood and salt tolerance in mega rice varieties of India through a multi-institutional network.
Renu Singh,Yashi Singh,Suchit Xalaxo,Satish B. Verulkar,Neera Yadav,Shweta Singh,N. Singh,K S N Prasad,K Kondayya,P V Ramana Rao,M. Girija Rani,T. Anuradha,Y Suraynarayana,Parbodh C. Sharma,S. L. Krishnamurthy,S. K. Sharma,J.L. Dwivedi,A.K. Singh,Poonam Singh,Nilanjay,N.K. Singh,Rajesh Kumar,S. K. Chetia,T Ahmad,Mayank Rai,Puvvada Perraju,Anita Pande,D.N. Singh,N.P. Mandal,J. N. Reddy,Onkar Singh,Jawahar Lal Katara,B Marandi,Padmini Swain,Ramani Kumar Sarkar,Devendra Pratap Singh,Trilochan Mohapatra,G Padmawathi,T. Ram,R. M. Kathiresan,K. V Paramsivam,S. Nadarajan,S Thirumeni,M. Nagarajan,Prashant Vikram,Arvind Kumar,E Septiningshih,Uma S. Singh,Abdelbagi M. Ismail,David J. Mackill,Nagendra K. Singh +50 more
TL;DR: A large multi-institutional project, "From QTL to variety: marker-assisted breeding of abiotic stress tolerant rice varieties with major QTLs for drought, submergence and salt tolerance" was initiated in 2010 to improve rice productivity in the fragile ecosystems of eastern, northeastern and southern part of the country.
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Genetic, Physiological, and Gene Expression Analyses Reveal That Multiple QTL Enhance Yield of Rice Mega-Variety IR64 under Drought
B. P. Mallikarjuna Swamy,Helal Uddin Ahmed,Amelia Henry,Ramil Mauleon,Shalabh Dixit,Prashant Vikram,Ram Tilatto,Satish B. Verulkar,Puvvada Perraju,N.P. Mandal,Mukund Variar,Stéphane Robin,Ranganath Chandrababu,Onkar Singh,J.L. Dwivedi,Sankar Prasad Das,K. K. Mishra,Ram Baran Yadaw,Tamal Lata Aditya,B Karmakar,Kouji Satoh,Ali Moumeni,Shoshi Kikuchi,Hei Leung,Arvind Kumar +24 more
TL;DR: Differential yield advantages of different combinations of the four QTL reported here indicate that future research should include optimizing QTL combinations in different genetic backgrounds to maximize yield advantage under drought.
Journal ArticleDOI
Breeding resilient and productive genotypes adapted to drought-prone rainfed ecosystem of India
Satish B. Verulkar,N.P. Mandal,J.L. Dwivedi,B.N. Singh,Pragya Sinha,R.N. Mahato,P. Dongre,Onkar Singh,Lotan Kumar Bose,Padmini Swain,Stéphane Robin,R. Chandrababu,S. Senthil,Abhinav Jain,H. E. Shashidhar,Shailaja Hittalmani,C. M. Vera Cruz,Thelma R. Paris,Anitha Raman,Stephan M. Haefele,Rachid Serraj,Gary Atlin,Gary Atlin,Arvind Kumar +23 more
TL;DR: Overall, these results indicate that managed stress screening for drought tolerance, with a focus on selection for yield under stress, is effective in generating drought-tolerant cultivars.