232 research outputs found
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No full textNot AvailableSearch; Personalize: Your alerts; Your baskets; Your searches. Your alerts; Your baskets; Your searches. login. login. Home > Management of early blight disease of tomato cv 'Kashi Amrit' through fungicides, bioagents and cultural practices in India. World Vegetable Center. Information; Usage statistics; Files; Holdings. Record Details. Title: Management of early blight disease of tomato cv 'Kashi Amrit' through fungicides, bioagents and cultural practices in India. Author(s): Kumar, V. Gupta, RC Singh, PC Pandey, KK Kumar, R. Rai, AB Rai, M. Publication date: 2007. Subject(s): TOMATOES EARLY BLIGHT PLANT DISEASES FUNGICIDES PLANT DISEASE CONTROL DISEASE RESISTANCE ALTERNARIA SOLANI ALTERNARIA ALTERNATA GROWTH India IN …Not Availabl
Fungal metabolites as a natural source of herbicide: a novel approach of weed management: Ajay Kumar Singh* and Akhilesh Kumar Pandey Mycological Research Laboratory, Department of Biological Science Rani Durgawati University, Jabalpur-482001, Madhya Pradesh. India *Corresponding Author: Dr Ajay Kumar Singh [email protected]
No full textWeeds are undesirable vegetation directly or indirectly inferring with human welfare. Conventional methods of weed control have failed due to one or other reason. Herbicide-resistant weeds are the main problem in weed control due to the number of weed biotypes resistant to herbicides that constantly increases by the continuous use of the same products for years. Development of alternative weed control methods is needed to help decrease reliance on herbicide use. Biological weed control is an alternative option for weed problems, particularly in agriculture and forestry. It is based on the use of natural enemies, particularly insects and pathogens to control weeds, as a sustainable, low cost and more environmentally acceptable method of weed control. One of the approaches to biological weed control using fungal phytotoxin applied in similar ways to conventional herbicides. Fungal phytotoxins are natural secondary metabolites produced by plant pathogenic fungi during host–pathogen interactions. They have received considerable particular attention for elucidating disease etiology, and consequently to design strategies for disease control. Due to wide differences in their chemical structures, these toxic metabolites have different ecological and environmental roles and mechanisms of action. This review aims at summarizing the studies on the possible use of fungal phytotoxin as a lucrative, novel source of secondary phytotoxic herbicidal compounds for management of broad spectrum, noxious and pernicious weeds
A COMPARATIVE STUDY OF THE KNOWLEDGE LEVELS OF ORGANIZED AND UNORGANIZED PIG FARM OWNERS IN RANCHI DISTRICT OF JHARKHAND
No full textThe present study was conducted in Ranchi district of Jharkhand to compare the knowledge levels of organized and unorganized pig farm owners about improved pig rearing practices. Data were collected from each of 25 organized and unorganized pig farm owners through structured interview schedule. The study revealed
that majority of the respondents of both organized and unorganized pig farms were middle aged (64.00% & 60.00%), belonging to SC/ST category (80.00% & 84.00%), having large sized family (68.00% & 44.00%) and possessing large stock size (92.00% & 42.00%). The study also revealed that majority of the owners of organized pig farms were having high level of knowledge whereas majority of the owners of unorganized pig farms were
having medium level of knowledge about different improved pig rearing practices. Age, size of family and land holding were non-significantly and education, occupation, stock size, extension contact and net annual income from pig rearing were significantly associated with knowledge level of respondents of both organized and unorganized pig farms
Evaluation and analysis of impact of subsidies on small scale renewable energy technologies dissemination: a case study of Nepal
No full textThe report has analysed the status of rural electrification using renewable energy technologies (RETs) and the current subsidy delivery modality of RETs in Nepal. As the Government of Nepal is subsidizing small scale renewable energy projects, it is important to evaluate and analyse the programme to make sure that a programme is running in an effective and efficient way while reaching the target group.
During the course of the research, primary information collected from the field has been compiled using appropriate tools/software (such as MS Office) and analyzed. Different sets of questionnaires were prepared, targeting different personnel ranging from the users’ level to the government policy level. The field survey methods include field observations of RETs installations and operations along with interviews with selected users on a random sampling basis to identify barriers to subsidy delivery and possible measures to overcome these barriers; to determine user satisfaction level and time period for subsidy delivery mechanisms.
The report started with the country background information and the rationale behind the study. This is followed by the literature review and information on the current status of small scale RETs in the country. Next it deals with the organizational structure and current subsidy delivery modality of RETs in the country. The evaluation of the effectiveness of the subsidy with the current subsidy delivery modality has been analyzed based on six parameters; Targets and Achievements, Impact of RETs, Subsidy Delivery System Efficiency, Transparency, Sustainability and Effectiveness.
The research shows that the subsidized government program has been successful in achieving its goal to provide basic energy services in rural areas through RETs in terms of its quantitative target. Although the subsidized program is successful in electrifying the rural communities via RETs, the poorest of the poor families are still excluded from the subsidy. The program seems to benefit more the rich and upper middle class families rather than the poor families for which the subsidy was intended. The high capital cost and long subsidy delivery process are the main important reasons for this failure. The author has proposed a new modality which might overcome the time barriers and bureaucratic process in the subsidy delivery mechanism and will decrease the lead time. This will in turn help to reduce the operational cost of the private companies and will encourage more players to enter the market, increase competition and result in lower system costs.
After identifying gaps in the current subsidy delivery modality, the project report ends with the recommendation of a new modality improving the current modality and filling the gaps identified. As this study has some limitations, as described in chapter one, the scope of further works has been listed at the end
Mapping 50 Years of Small Group Research Through Small Group Research
No full textThis is the Accepted Manuscript version of Emich, K. J., Kumar, S., Lu, L., Norder, K., & Pandey, N. (2020). Mapping 50 Years of Small Group Research Through Small Group Research. Small Group Research, 51(6), 659–699. https://doi.org/10.1177/1046496420934541. This article was originally published in Small Group Research. The version of record is available at: https://doi.org/10.1177/1046496420934541. © The Author(s) 2020.At its 50-year milestone, we assess the Small Group Research (SGR) corpus to reflect on the development of group research over the past half century. To do this, we examine the evolution of the corpus’s context and content. We examine its context by assessing its impact, which journals it communicates with, and the internationality of its authors. We examine its content—the topics discussed in its articles—using keyword clustering and co-occurrence network analysis. We identify 10 research communities and track their relationships over the four editorial periods associated with the SGR corpus (lagged 2 years for influence): 1970–1981, 1982–1991, 1992–2010, and 2011–2019. Our analyses indicate that the global and local study of group dynamics has fluctuated over time and that phenomenologically based topics connect theoretical topics and stimulate theoretical development. We also provide three criteria to identify communities and topics of group research most likely to benefit from future integration.The author(s) received no financial support for the research, authorship, and/or publication of this article
The communication between (epi)genetic and (epi)transcriptomic gene regulatory pathways for precise control of gene expression in embryonic stem cells
No full textGenetic information flows from DNA to RNA (transcription) and RNA to protein (translation) – referred to as the ‘central dogma’ of molecular biology. ‘Epigenetic’ modification takes place on DNA and histones without changing the DNA sequences to control transcriptional output (DNA to RNA). While ‘epitranscriptomic/ RNA epigenetic’ modification happens in RNAs (at the post-transcriptional level) without altering the RNA sequences to control RNA turnover and translation. Although epigenetic and epitranscriptomic modifications act at different layers of gene regulation programs, recently, a handful of studies revealed the ‘crosstalk’ between these two pathways in controlling gene expression. However, the underlying mechanisms are not yet fully understood. This study establishes a link between the METTL3 and YTHDF2-mediated m6A epitranscriptomic pathway and the epigenetic pathway in gene regulation
Application of Size and Shape Dependent Model for Shear Modulus of Nanomaterials
No full text951-955A simple theory based on bond energy model is developed. The model is used to predict the size and shape dependence
of shear modulus of different nanomaterials. The results obtained are compared with the our theoretical predictions as well
as experimental data. In small size range (<10nm) there is a very good agreement between earlier predictions as well as
experimental observations. It is discussed that present model is very simple as compared with the earlier model. In addition
to this, our model includes the effect of shape also, which has not been considered in earlier theory. Due to the simplicity
and applicability of the model, it can be used to understand the size and shape dependence of shear modulus of
nanomaterials. To the best of our knowledge, such simple model is not yet available in the literature to predict the size and
shape dependence of shear modulus
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