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Verma, Pooja
- Allelopathic Potential and Allelochemicals in Different Intercrops for Weed Management in Rainfed Cotton
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PDF Views:121
Authors
Affiliations
1 ICAR-Central Institute for Cotton Research, Nagpur 440 010, IN
1 ICAR-Central Institute for Cotton Research, Nagpur 440 010, IN
Source
Current Science, Vol 120, No 6 (2021), Pagination: 1035-1039Abstract
Allelochemicals released by plants serve as the primary defence by targeting the establishment of weeds and other plants. In this study, 12 different intercrops were assessed over five seasons for total phenol and terpenoid content. A detailed analysis on allelochemi-cals produced was also done using gas chromatog-raphy–mass spectrometry (GC–MS) to correlate with their weed suppression efficiency. Total phenol con-tent of intercrops ranged from 6.5 to 17.6 mg g–1 tissue dry wt, with the highest value in carom followed by sorghum, sunnhemp and marigold. Total terpenoid content of leaf extracts of the intercrops varied from 14.5 to 35.9 μg g–1 tissue dry wt, wherein pearl millet had maximum terpenoid content (35.9 μg g–1 tissue dry wt) followed by sunnhemp and sesame. Analysis using GC–MS indicated the presence of some unique as well as common allelochemicals in the experimental intercrops. To correlate the abundance of these allelo-chemicals released from intercrops with their weed suppression competence, relative neighbour effect (RNE) value was determined for each intercrop. Posi-tive RNE values for sunnhemp, pearl millet and sesame indicate their efficiency in effectively reducing weed population than the other intercrops. Thus, in-tercrops with high phenolic, terpenoid and other alle-lochemicals specific to sunnhemp, pearl millet and sesame can be correlated well with weed suppression as perceptible from their RNE values.Keywords
Allelochemicals, Allelopathic Potential, In-Tercrops, Rainfed Cotton, Relative Neighbour Effect.Full Text
References
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- A Paradigm Shift in Agroforestry Practices in Uttar Pradesh
Abstract Views :381 |
PDF Views:115
Authors
Affiliations
1 Indian Institute of Forest Management, Nehru Nagar, Bhopal 462 003, IN
2 Department of Silviculture and Agroforestry, College of Forestry, Navsari Agricultural University, Navsari 396 450, IN
3 Indira Gandhi National Tribal University, Amarkantak 484 887, IN
1 Indian Institute of Forest Management, Nehru Nagar, Bhopal 462 003, IN
2 Department of Silviculture and Agroforestry, College of Forestry, Navsari Agricultural University, Navsari 396 450, IN
3 Indira Gandhi National Tribal University, Amarkantak 484 887, IN
Source
Current Science, Vol 112, No 03 (2017), Pagination: 509-516Abstract
Agroforestry is a dynamic and sustainable land management system of deliberately growing woody perennials along with agricultural crops on farmlands to secure both tangible and intangible benefits to the farmers. Uttar Pradesh (UP), one of the largest and densely populated state of India in the Indo-Gangetic Plain with large agrarian communities, had a paradigm shift in the adoption of agroforestry. After successful adoption and commercialization of poplar and eucalyptus-based agroforestry models over two decades in western UP, other parts of central and eastern UP have also been attracted towards remunerative agroforestry projects in the past few years. In UP, agroforestry practices vary according to different agro-climatic zones, land capability and socio-economic status of farmers. The variation is reflected in terms of diversity in agroforestry practices, and comparative advantage prompted a renewed interest to harness the vivid potential. Drawing on the representative literature, we have reviewed the status and pattern of tree- crop combinations of agroforestry practices across various regions of the state as well as productivity under different agroforestry systems, which shows traditional agriculture transforming to multifunctional agroforestry in UP.Keywords
Agro-Climatic Regions, Agroforestry, Paradigm Shift, Productivity, Tree–Crop Interaction.Full Text
- Parent-Child Relationship as a Correlate of Academic Achievement among Adolescents
Abstract Views :426 |
PDF Views:0
Authors
Gayatri Raina
1,
Pooja Verma
1
Affiliations
1 Department of Psychology, H. P. University, Summer Hill, Shimla, IN
1 Department of Psychology, H. P. University, Summer Hill, Shimla, IN
Source
Indian Journal of Health and Wellbeing, Vol 8, No 6 (2017), Pagination: 417-421Abstract
The present research focuses on academic achievement among adolescents in relation to parent-child relationship. The sample for the study comprised of 100 adolescents i.e. 50 boys and 50 girls in the age group of 14 to 16 years. The entire sample was drawn from the various public schools of Shimla town of Himachal Pradesh. Parent Child relationship scale (Nalini Rao, 1989) and academic achievement was assessed on the basis of total scores of annual examination was administered on the selected sample of boys and girls. T-test was carried out to see the significance of difference between boys and girls on academic achievement. Furthermore, correlation and regression analysis was employed to find out the effect of parent-child relationship on academic achievement. Results indicated that adolescent boys and girls share different relationship with their parents and this relationship affect their academic achievement. Overall, boys scored higher on academic achievement as compare to girls. Neglection and object punishment from father have a significant relation with the academic achievement of boys. On the other hand, protection from fathers has a significant and positive relation with the academic achievement of girls.Keywords
Parent Child Relationship, Adolescents, Boys and Girls, Academic Achievement.
- Trends and Insights of Agroforestry Practices in Madhya Pradesh, India
Abstract Views :335 |
PDF Views:126
Authors
Arvind Bijalwan
1,
Pooja Verma
1,
Manmohan J. R. Dobriyal
2,
A. K. Patil
3,
Tarun Kumar Thakur
4,
C. M. Sharma
5
Affiliations
1 Indian Institute of Forest Management, Nehru Nagar, Bhopal 462 003, IN
2 Department of Silviculture and Agroforestry, College of Forestry, Navsari Agricultural University, Navsari 396 450, IN
3 Madhya Pradesh Forest Department, Bhopal 462 004, IN
4 Indira Gandhi National Tribal University, Amarkantak 484 887, IN
5 College of Forestry, VCSG Uttarakhand University of Horticulture and Forestry, Hill Campus, Ranichauri, Tehri Garhwal 249 199, IN
1 Indian Institute of Forest Management, Nehru Nagar, Bhopal 462 003, IN
2 Department of Silviculture and Agroforestry, College of Forestry, Navsari Agricultural University, Navsari 396 450, IN
3 Madhya Pradesh Forest Department, Bhopal 462 004, IN
4 Indira Gandhi National Tribal University, Amarkantak 484 887, IN
5 College of Forestry, VCSG Uttarakhand University of Horticulture and Forestry, Hill Campus, Ranichauri, Tehri Garhwal 249 199, IN
Source
Current Science, Vol 117, No 4 (2019), Pagination: 597-605Abstract
Agroforestry practices in Madhya Pradesh (MP), India existed in the primordial times, which can be evidenced almost in every region of the state; however, the pace of scientific inclusion in agroforestry and its extension is quite slow. There is lack of priority and limited work has been done related to agroforestry practices, possibly due to the presence of large natural forest area in the state. In the present context, to meet the national target of forest cover and to reduce pressure on nature forest, agroforestry seems to be a viable option as it provides a source of income for farming and tribal communities along with countless environmental benefits. This article provides a review and insight of agroforestry and extent of agriculture, horticulture and agroforestry in MP. It also provides information on diverse tree species under agroforestry systems, a mosaic of tree–crop combinations and horticulture species preferred by the farmers in different agro-climatic zones of the state. The authors have also tried to enlist the efforts of various government initiatives and other agencies involved in the extension of agroforestry in the state. The roles of MP Forest Department, MP Forest Development Corporation and allied Departments of the state in agroforestry and tree planting have also been discussed. Marketing of agroforestry produce, farmers’ involvement in agroforestry practices and identification of key policy constraints of agroforestry in the state have been discussed and critically analysed.Keywords
Agroforestry Practices, Agriculture, Agroclimatic Regions, Horticulture.Full Text
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- Physiological, biochemical and molecular manifestations in response to seed priming with elicitors under drought in cotton
Abstract Views :349 |
PDF Views:102
Authors
Affiliations
1 ICAR-Central Institute for Cotton Research, Nagpur 441 108, India; Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 221 007, India
2 ICAR-Central Institute for Cotton Research, Nagpur 441 108, India
3 Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 221 007, India
1 ICAR-Central Institute for Cotton Research, Nagpur 441 108, India; Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 221 007, India
2 ICAR-Central Institute for Cotton Research, Nagpur 441 108, India
3 Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 221 007, India
Source
Current Science, Vol 123, No 5 (2022), Pagination: 658-666Abstract
Water stress has a detrimental effect on growth and development, which alters physio-biochemical activities. Seed priming with elicitors such as methyl jasmonate and paclobutrazol can mitigate the impact of drought stress. Therefore, pot-culture studies were conducted with drought-tolerant (DTS-155) and drought-susceptible (IC-357055) cotton genotypes to assess the seed priming effects of elicitors (methyl jasmonate and paclobutrazol) on the physio-biochemical changes and gene expression. The dose (50, 100, 150 and 200 mM) and time interval (1.5 and 2.5 h) experiments of both the elicitors were performed separately. On the basis of germination, seedling growth and vigour, a 150 mM elicitor for 1.5 h time interval was found to be the best. Biochemical and physiological parameters confirmed an increase in relative water content, total antioxidant activities, chlorophyll, superoxide dismutase, catalase and proline under drought stress in both the genotypes, but a decrease in lipid peroxidation. Among the elicitors, methyl jasmonate improved drought tolerance as compared to paclobutrazol. Gene expression studies with Rub-S, Rub-L and Osmotin confirmed the results. Transcript abundance of Osmotin and Rub-L was upregulated under drought stress in both the genotypes and was highest in methyl jasmonate primed samples. These findings suggest that priming with methyl jasmonate enhances drought tolerance in cottonKeywords
Drought responsive gene, Gossypium hirsu-tum, methyl jasmonate, paclobutrazol, seed primingFull Text
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