Author Details

Scroll

Refine your search

Collections

Basic & Applied Science Collection

Co-Authors

Journals

Current Science

Year

Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All

Kumar, N.

Grafted Papayas:A Boon for Dioecious Papaya Industry

Abstract Views :322 | PDF Views:94

Authors

S. Senthilkumar ¹, N. Kumar ², K. Soorianathasundaram ³, K. Arun Kumar ¹

Affiliations
1 School of Agriculture, Lovely Professional University, Phagwara 144 411, IN
2 Horticulture College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 631 003, IN
3 Department of Fruit Crops, Tamil Nadu Agricultural University, Coimbatore 631 003, IN

Source

Current Science, Vol 111, No 8 (2016), Pagination: 1287-1288

Abstract

Papaya (Carica papaya L.), regarded as the 'Wonder fruit of tropics and sub tropics', belongs to the family Caricaceae. The importance of papaya to agriculture and the world's economy is demonstrated by its wide distribution, substantial production in the tropical countries, besides its high nutritive value.

Full Text

References

http://www.acgssr.org/BioTechnology/ V2N2December1999/fullpaper/p.22.pdf

Villegas, V. N. et al., In Annual Scientific Conference, Philippines, Baguio City, 1997.

Nhat Hang, N. T. and Chau, N. M., 2000; www.sofri.ac.vn/english/research_program/ 2000/trangnguyen.pdf

Allan, P., Acta Hort., 2007, 740, 217– 223.

Chong, S. T. et al., Acta Hort., 2007, 787, 273–276.

Chong, S. T. et al., In First International Symposium on Papaya, Genting Highlands, 2005, pp. 22–24.

Allan, P. et al., Acta Hort., 2010, 851, 253–258.

Weng, S. W. and Yang, Y. S., 1999; http:// ir.lib.nchu.edu.tw/handle/309270000/30125

Senthilkumar, S., PG dissertation submitted to TNAU, Coimbatore, India, 2011.

Micro-Irrigation in Rainfed Pigeonpea - Upscaling Productivity under Eastern Gangetic Plains with Suitable Land Configuration, Population Management and Supplementary Fertigation at Critical Stages

Abstract Views :233 | PDF Views:102

Authors

C. S. Praharaj ¹, Ummed Singh ¹, S. S. Singh ¹, N. Kumar ¹

Affiliations
1 ICAR-Indian Institute of Pulses Research, Kanpur 208 024, IN

Source

Current Science, Vol 112, No 01 (2017), Pagination: 95-107

Abstract

Water - a critical input for sustained crop production - is becoming limiting both under rainfed and irrigated condition. It calls for an effective on-farm management of water in field crops through microirrigation (drip-fertigation) that could take care of both drainage during rainy months and supplementary life saving irrigation thereafter. Therefore, the present field study involving three planting configurations and five drip-fertigation schedules were taken up in pigeonpea (long duration) during 2010-12 under Eastern Indo-Gangetic Plains at Kanpur, Uttar Pradesh, India. Significant grain yield advantage (19.6%) was with single drip-fertigation with half of N + K fertilizer at branching over farmers' practice (rainfed pigeonpea, 2858 kg/ha). Drip-fertigation at both branch and pod development also out-yielded (3468 kg/ha) over improved practice (furrow irrigation, 3262 kg/ha). These yield levels realized were close to potential yield (2.5-3.0 t/ha). Twice drip-fertigated plots also had higher yield attributes (pods/plant, 100 seed weight and harvest index), lower water use, greater soil profile water content and water use efficiency (65.1 kg/ha cm), higher plant nutrient (N, P and K) uptake with improved soil nutrient availability and greater net return (INR 9650/ha) over farmers' practice. A case study on a micro-scale was also given which could explore the possibility of out-scaling the technology.

Keywords

Critical Stages, Indo-Gangetic Plains, Microirrigation, Pigeonpea, Planting Configurations, Rainfed Pigeonpea, Supplementary Fertigation.

Full Text

Tactical Water Management in Field Crops:The Key to Resource Conservation

Abstract Views :213 | PDF Views:79

Authors

C. S. Praharaj ¹, Ummed Singh ¹, S. S. Singh ¹, N. Kumar ¹

Affiliations
1 ICAR-Indian Institute of Pulses Research, Kanpur 208 024, IN

Source

Current Science, Vol 115, No 7 (2018), Pagination: 1262-1269

Abstract

Water is a critical input for productivity enhancement especially o f field crops. Its judicious and optimum use is needed utmost for realizing higher resource use efficiency and plugging gaps in production. Resource conservation technologies or key technological interventions, which could alter or rectify the usage pattern or strategies in freshwater utilization in agriculture, are the need o f the hour. Tactical or strategic approach in water management could help in conserving and making more-efficient use of scarce water resources through integrated management combined with selected external inputs/technologies. In this context, the scientific interventions on water management involving precision levelling of land, no tillage or reduced tillage systems, furrow irrigated raised bed planting or broad bed furrow systems, management o f soil cover and crop diversification and other inclusive technological practices could enforce appropriate water management schedules.

Keywords

Field Crops, Pulses, Resource Conservation, Sustainable Development Goals, Tactical Water Management, Technological Interventions.

Full Text

References

Praharaj, C. S., Managing precious water through need based micro-irrigation in a long duration pigeonpea under Indian Plains. In International Conference on Policies for Water and Food Security, Cairo, Egypt, 2013.

Praharaj, C. S., Singh, Ummed and Hazra, K., Technological interventions for strategic management of water for conserving natural resources. In Sixth World Congress on Conservation Agriculture - Soil Health and Wallet Wealth, Winnipeg, Manitoba, Canada, 2014.

Rajendran, T. P., Venugopalan, M. V. and Praharaj, C. S., Cotton research towards sufficiency to Indian textile industry. Indian J. Agric. Sci., 2005, 75, 699-708.

Praharaj, C. S., Singh, Ummed, Singh, S. S. and Kumar, N., Micro-irrigation in rainfed pigeonpea-Upscaling productivity under Eastern Gangetic Plains with suitable land configuration, population management and supplementary fertigation at critical stages. Curr. Sci., 2017, 112(1), 95-107.

Sangar, Sunita, Abrol, I. P. and Gupta, R. K., Conservation agriculture: conserving resources-enhancing productivity, concept paper, Centre for Advancement of Sustainable Agriculture, NASC Complex, DPS Marg, Pusa Campus, New Delhi, 2004.

Sankaranarayanan, K., Nalayini, P., Praharaj, C. S., Sathiskumar, N. and Gopalakrishnan, N., Increasing irrigation efficiency through water saving devices. In Training Manual on National Level Training Programme on Farm mechanization in Cotton, TNAU, Directorate of Extension Education, Coimbatore, 2008.

Praharaj, C. S., Singh, Ummed and Hazra, Kalikrishna, Sustaining livelihood security with village cluster approach for resource conservation. In Sixth World Congress on Conservation Agriculture -Soil Health and Wallet Wealth at Winnipeg, Manitoba, Canada, 2014.

Praharaj, C. S. and Kumar, Narendra, Efficient management of water and nutrients through drip-fertigation in long duration pigeonpea under Indian Plains. In Third International Agronomy Congress on Agronomy, Environment and Food Security for 21st Century, IARI, New Delhi, 2012, vol. 3, pp. 819-820.

Praharaj, C. S. and Rajendran, T. P., Long term quantitative and qualitative changes in cotton and soil parameters under cultivars, cropping systems and nutrient management options. Indian J. Agric. Sci., 2007, 77, 280-285.

Mishra, J. P., Praharaj, C. S. and Singh, K. K., Enhancing water use efficiency and production potential of chickpea and fieldpea through seed bed configurations and irrigation regimes in North Indian Plains. J. Food Leg., 2012, 25, 310-313.

Mishra, J. P., Praharaj, C. S., Singh, K. K. and Narendra, Kumar, Impact of conservation practices on crop water use and productivity in chickpea under middle Indo-Gangetic plains. J. Food Leg., 2012, 25, 41-44.

Praharaj, C. S., Mishra, J. P., Narendra Kumar, Singh, K. K. and Ghosh, P. K., Improving crop productivity and water use efficiency in chickpea genotypes through in situ water conservation practices in EGPZ. In Proceeding of X Agricultural Science Congress on Soil-Plant-Animal Health: Safety and Security, NBFGR, Lucknow, India, 2011, pp. 410-411.

Pathak, H., State of natural resources in the Indo-Gangetic Plains for sustainable crop Production. Curr. Adv. Agric. Sci., 2013, 5, 161-166.

Masood, Ali., 25 Years o f Pulses Research at IIPR, Indian Institute of Pulses Research, Kanpur, 2009, p. 211.

Venkatesh, M. S., Hazra, K. K., Ghosh, P. K., Praharaj, C. S. and Kumar, N., Long-term effect of pulses and nutrient management on soil carbon sequestration in Indo-Gangetic plains of India. Can. J. Soil Sci., 2013, 93, 127-136.

Gupta, R. K., Jat, M. L. and Sharma, S. K., Resource conserving technologies for water savings and enhancing productivity. In Proceedings of the National Symposium on Efficient Water Management for Eco-friendly Sustainable and Profitable Agriculture, New Delhi, 2005, pp. 181-182.

Malik, R. K. et al., Accelerating the adoption of resource conservation technologies in rice-wheat systems of the IGP. In Proceedings of Project Workshop, CCSHAU, Hisar, 2005.

Hobbs, P. R. and Gupta, R. K., Resource conserving technologies for wheat in rice-wheat systems. In Improving the Productivity and Sustainability o f Rice—Wheat Systems: Issues and Impact (eds Ladha, J. K. et al.), ASA, Spec. Publ. 65, chapter 7, ASA Madison, WI, USA, 2003, pp. 149-171.

Jat, M. L., Sharma, S. K. and Gupta, Raj K., Sirohi, K. and Chandana, P., Laser land levelling: the precursor technology for resource conservation in irrigated eco-system of India. In Conservation Agriculture-status and Prospects (eds Abrol, I. P. et al.), CASA, New Delhi, 2005, pp. 145-154.

Jat, M. L., Shrivastava, A., Sharma, S. K., Gupta, R. K., Zaidi, P. H., Rai, H. K. and Srinivasan, G., Evaluation of maize-wheat cropping system under double-no-till practice in Indo-Gangetic Basin of India. In 9th Asian Maize Research Workshop, Beijing, China, 2005.

Balasubramanian, V., Ladha, J. K., Gupta, R. K., Naresh, R. K., Mahela, R. S., Singh, B. and Singh, Y., Technology options for rice in rice-wheat system in south Asia. In Improving the Productivity and Sustainability o f Rice—Wheat SAystems: Issues and Impact (eds Ladha, J.K. et al.), ASA Spec. Pub. 65ASA, CSSA, and SSSA, Madison, WI, 2003, pp. 115-118.

Masood, Ali, Ganeshamurthy, A. N., Singh, K. K. and Sekhon, H. S., Integrated nutrient and water management in food legumes in semi-arid tropics. In Food Legumes fo r Nutritional Security and Sustainable Agriculture (ed. Kharwal, M. C.), M/s Kamala PrintnPublish, New Delhi, India, 2008, vol. 1, pp. 485-502.

Singh, K. K. et al., Effect of crop residue and NPKS on crop productivity and soil fertility in rice-lentil cropping system. In X Agricultural Science Congress on ‘Soil-Plant-Animal Health: Safety and Security, NBFGR, Lucknow, UP India, 2011, pp. 48-49.

Jat, M. L., Pal, S. S., Subba Rao, A. V. M., Sirohi, K., Sharma, S. K. and Gupta, R. K., Laser land levelling-the precursor technology for resource conservation in irrigated eco-system of India. In Proceedings of National Conference on Conservation Agriculture: Conserving Resources-Enhancing Productivity, NASC Complex, Pusa, New Delhi, 2004, pp. 9-10.

Grace, P. R., Jain, M. C. and Harrington, L. W., Environmental concerns in rice-wheat system. In Proceedings of the International Workshop on Developing Action Programme for Farm level Impact in Rice-Wheat system of the Indo-Gangetic Plains, New Delhi, India, Rice-Wheat Consortium paper series 14, New Delhi, India, 2002, pp. 99-111.

Pal, S. S., Jat, M. L., Sharma, S. K. and Yadav, R. L., Managing crop residues in rice-wheat system. PDCSR Technical Bulletin 2002-1, Project Directorate for Cropping Systems Research, Modipuram, India, 2002, p. 40.

Mandal, B. K., Saha, A., Kundu, T. K. and Ghorai, A. K., Wheat (Triticum aestivum L.) based intercropping and its effect of irrigation and mulch on growth and yield. Indian J. Agron., 1999, 36, 23-29.

Praharaj, C. S., Sankaranarayanan, K., Kumar, Narendra, Singh, K. K. and Tripathi, A. K., Low-input technologies for increasing crop productivity and sustainability. Curr. Adv. Agric. Sci., 2011, 3, 1-12.

Singh, K. K., Praharaj, C. S., Choudhary, A. K., Kumar Narendra and Venkatesh, M. S., Zinc response in pulses. Indian J. Fertlilizers, 2011, 7, 118-126.

Venkateswarlu, B. and Prasad, J. V. N. S., Carrying capacity of Indian agriculture: issues related to rainfed agriculture. Curr. Sci., 2012, 102, 882-888.

Bhushan, L. et al., Saving of water and labor in a rice-wheat system with no-tillage and direct seeding technologies. Agron. J., 2007, 99, 1288-1296.

Gill, M. S., Kumar, P. and Kumar, A., Growth and yield of direct-seeded rice (Oryza sativa) as influenced by seeding technique and seed rate under irrigated conditions. Indian J. Agron., 2006, 51, 283-287.

Gupta, R. K. et al., Production technology for direct seeded rice, Rice Wheat Consortium Technical Bulletin 8, New Delhi, India, 2006.

Commissioning of the MACE gamma-ray telescope at Hanle, Ladakh, India

Abstract Views :197 | PDF Views:74

Authors

K. K. Yadav ¹, N. Chouhan ², R. Thubstan ², S. Norlha ², J. Hariharan ², C. Borwankar ², P. Chandra ², V. K. Dhar ¹, N. Mankuzhyil ², S. Godambe ², M. Sharma ², K. Venugopal ², K. K. Singh ¹, N. Bhatt ², S. Bhattacharyya ¹, K. Chanchalani ², M. P. Das ², B. Ghosal ², S. Godiyal ², M. Khurana ², S. V. Kotwal ², M. K. Koul ², N. Kumar ², C. P. Kushwaha ², K. Nand ², A. Pathania ², S. Sahayanathan ¹, D. Sarkar ², A. Tolamati ², R. Koul ³, R. C. Rannot ⁴, A. K. Tickoo ⁵, V. R. Chitnis ⁶, A. Behere ⁷, S. Padmini ⁷, A. Manna ⁷, S. Joy ⁷, P. M. Nair ⁷, K. P. Jha ⁷, S. Moitra ⁷, S. Neema ⁷, S. Srivastava ⁷, M. Punna ⁷, S. Mohanan ⁷, S. S. Sikder ⁷, A. Jain ⁷, S. Banerjee ⁷, Krati ⁷, J. Deshpande ⁷, V. Sanadhya ⁸, G. Andrew ⁸, M. B. Patil ⁸, V. K. Goyal ⁸, N. Gupta ⁸, H. Balakrishna ⁸, A. Agrawal ⁸, S. P. Srivastava ⁹, K. N. Karn ⁹, P. I. Hadgali ⁹, S. Bhatt ⁹, V. K. Mishra ⁹, P. K. Biswas ⁹, R. K Gupta ⁹, A. Kumar ⁹, S. G. Thul ⁹, R. Kalmady ¹⁰, D. D. Sonvane ¹⁰, V. Kumar ¹⁰, U. K. Gaur ¹⁰, J. Chattopadhyay ¹¹, S. K. Gupta ¹¹, A. R. Kiran ¹¹, Y. Parulekar ¹¹, M. K. Agrawal ¹¹, R. M. Parmar ¹¹, G. R. Reddy ¹², Y. S. Mayya ¹³, C. K. Pithawa ¹⁴

Affiliations
1 Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Mumbai 400 085, India, IN
2 Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
3 Formerly at Astrophysical Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
4 Raja Ramanna Fellow at Astrophysical Sciences Division, Mumbai 400 085, India, IN
5 Deceased, IN
6 Department of High Energy Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India, IN
7 Electronics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
8 Control and Instrumentation Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
9 Center for Design and Manufacture, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
10 Computer Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
11 Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
12 Formerly at Reactor Safety Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
13 Formerly at Reactor Control Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN
14 Formerly at Electronics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India, IN

Source

Current Science, Vol 123, No 12 (2022), Pagination: 1428-1435

Abstract

The MACE telescope has recently been commissioned at Hanle, Ladakh, India. It had its first light in April 2021 with a successful detection of very high energy gamma-ray photons from the standard candle Crab Nebula. Equipped with a large light collector of 21 m diameter and situated at an altitude of ~4.3 km amsl, the MACE telescope is expected to explore the mysteries of the non-thermal Universe in the energy range above 20 GeV with very high sensitivity. It can also play an important role in carrying out multi-messenger astronomy in India.

Keywords

Gamma-ray astronomy, high energy radiative processes, non-thermal Universe, telescope.

Full Text

References

Weekes, T. C. et al., Observation of TeV gamma rays from the crab nebula using the atmospheric Cerenkov imaging technique. Astro-phys. J., 1989, 342, 379–395.

Ong, R. A., Very high energy gamma-ray astronomy. Phys. Rep., 1998, 305, 93–202.

Hillas, A. M., Evolution of ground-based gamma-ray astronomy from the early days to the Cherenkov Telescope Arrays. Astropart.Phys., 2013, 43, 19–43.

Chadwick, P., 35 Years of ground-based gamma-ray astronomy. Universe, 2021, 7, 432.

http://tevcat.uchicago.edu (accessed on 15 July 2022).

Fegan, D. J., Topical review: γ/hadron separation at TeV energies. J. Phys. G., 1997, 23, 1013–1060.

Aharonian, F. et al., High energy astrophysics with ground-based gamma ray detectors. Rep. Prog. Phys., 2008, 71, 096901.

Holder, J., Atmospheric Cherenkov gamma-ray telescopes; arXiv: 1510.05675.

Di Sciascio, G., Ground-based gamma-ray astronomy: an introduc-tion. J. Phys., Conf. Ser., 2019, 1263, 012003.

Koul, R. et al., The TACTIC atmospheric Cherenkov imaging tele-scope. Nucl. Instrum. Methods Phys. Res. A, 2007, 578, 548–564.

Singh, K. K. and Yadav, K. K., 20 Years of Indian gamma ray as-tronomy using imaging Cherenkov telescopes and road ahead. Uni-verse, 2021, 7, 96.

Singh, K. K., Gamma-ray astronomy with the imaging atmospheric Cherenkov telescopes in India. J. Astrophys. Astron., 2022, 43, 3.

Ajello, M. et al., Fermi large area telescope performance after 10 years of operation. Astrophys. J. Suppl., 2021, 256, 12.

Borwankar, C. et al., Simulation studies of MACE-I: trigger rates and energy thresholds. Astropart. Phys., 2016, 84, 97–106.

Borwankar, C. et al., Estimation of expected performance for the MACE γ-ray telescope in low zenith angle range. Nucl. Instrum.Methods Phys. Res. A, 2020, 953, 163182.

Sharma, M. et al., Sensitivity estimate of the MACE gamma ray telescope. Nucl. Instrum. Methods Phys. Res. A, 2017, 851, 125–131.

Dhar, V. K. et al., Development of a new type of metallic mirrors for 21 meter MACE γ-ray telescope. J. Astrophys. Astron., 2022, 43, 17.

Hillas, A. M., Cerenkov light images of EAS produced by primary gamma rays and by nuclei. In 19th International Cosmic Ray Con-ference, San Diego, CA, United States, 1985, vol. 3, p. 445.

Li, T. P. and Ma, Y. Q., Analysis methods for results in gamma-ray astronomy. Astrophys. J., 1983, 272, 317–324.

Yadav, K. K. et al., Status update of the MACE gamma-ray tele-scope. In Proceeding of Science, 37th International Cosmic Ray Conference, Berlin, Germany, 2021, p. 756.

Albert, J. et al., VHE gamma-ray observation of the Crab Nebula and its pulsar with the MAGIC telescope. Astrophys. J., 2008, 674, 1037–1055.

Tolamatti, A. et al., Feasibility study of observing γ-ray emission from high redshift blazars using the MACE telescope. J. Astrophys.Astron., 2022, 43, 49.

Singh, K. K. et al., Probing the evolution of the EBL photon density out to z ∼ 1 via γ-ray propagation measurements with Fermi. Astro-phys. Space Sci., 2021, 366, 51

Username
Password
Remember me