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Singh, Bijendra
- Rooting Behaviour of Different Plant Species in Limestone Mined Area
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Indian Forester, Vol 119, No 1 (1993), Pagination: 71-74Abstract
Rooting behaviour studies were undertaken to evaluate the relative performance of thirteen species of trees shrubs and grasses viz, Eucalyptus hybrid Syn. E. tereticornis (Euca lyptus), Grewia optiva (B limal), Bon bax ceiba (Bumla), Bauhinia retusa (Kacbnar), Leucaena leucocephala (Subatul), Ipomoea carnea (Sadabahar), Agave americana (Rambans), Pueraria hirsuta (Kudzu), Arundo donax (Narkul). Pennisetum purpureum (Hathighas), Brachiaria mutica (Paraghas). Chrysopogon fulvus (Golda) and Eulaliopsis binata (Bhabar) on abandoned limestone minespoil from Cuter Himalayas of Uttar Pradesb. Highest soil binding factor was found in Leucaena leucocephala (502). Agave americana (624) and Pennisetum purpureum (1736) among trees, shrubs and grasses species, respectively. Total ischolar_main length was also recorded highest in the said species.
- Studies on Placing and Mixing of a Normal Soil in Limestone Minespoil on the Performance of Two Tree Species
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Higher N and P content was observed in leaves of both the species as compared to ischolar_mains and shoots. The distribution of K was uniform in B. retusa while it was more in leaves of L. leucocephala followed by ischolar_mains and then shoots. Total uptake of nutrient followed the dry matter yield pattern. Maximum distribution of ischolar_mains was observed in 5-15 and >15 cm layers after 80 weeks.
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Indian Forester, Vol 119, No 12 (1993), Pagination: 1011-1019Abstract
Studies were conducted for 80 weeks in trapezoidal pots of 40 cm sides and depth to evaluate the effect of top placing and mixing of normal soil in limestone mine spoil/debris on the performance of L. leucocephala and B. retusa. Placement of 30 cm normal soil with debris was found best for L. leucocephala and mixing the same amount was optimum for B. retusa as revealed by height, basal diameter, crown spreads biomass yield and some ischolar_main characters. Mixing or placement of 15 cm normal soil with debris was also beneficial for both the species but 5 cm treatment did not show much superiority over debris alone.Higher N and P content was observed in leaves of both the species as compared to ischolar_mains and shoots. The distribution of K was uniform in B. retusa while it was more in leaves of L. leucocephala followed by ischolar_mains and then shoots. Total uptake of nutrient followed the dry matter yield pattern. Maximum distribution of ischolar_mains was observed in 5-15 and >15 cm layers after 80 weeks.
- Effect of Normal Soil Mix on Leucaena leucocephala (Lamk) Dewit. In the Minespoil of Outer Himalayas of Uttar Pradesh
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Indian Forester, Vol 118, No 3 (1992), Pagination: 234-236Abstract
No abstract- Characteristics of Limestone Minespoil/debris from Outer Himalayas of Uttar Pradesh
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Indian Forester, Vol 118, No 9 (1992), Pagination: 650-658Abstract
Fifty two limestone minespoil/debris samples from 20 mine sites covering four blocks viz., Bandal, Chamasari, Rajpur and Rikholi under Mussoorie hills of Uttar Pradesh from outer Himalayas were evaluated for important characteristics. Minespoil was found neutral to alkaline in reaction, poor in fertility status, sandy loam in texture, high in CaCO3, and bu1k density and low in water holding capacity. More than 75% of the samples were found to contain more than 50% CaCO3. The pH was found to be significantly correlated with CaCO3 (r=0.64) and available P (r=-0.48). No relation existed between CaCO3 and available P but silt+clay was found highly correlated with water holding capacity (r=0.62).- Effect of Normal Soil Mix on Pueraria hirsuta Linn. in the Minespoil of Outer Himalayas
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Indian Forester, Vol 116, No 7 (1990), Pagination: 591-592Abstract
No abstract- Proline-Rich Proteins May Regulate Free Cellular Proline Levels during Drought Stress in Tomato
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Authors
Affiliations
1 Division of Crop Improvement, ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, IN
1 Division of Crop Improvement, ICAR-Indian Institute of Vegetable Research, Varanasi 221 305, IN
Source
Current Science, Vol 114, No 04 (2018), Pagination: 915-920Abstract
Proline (Pro)-rich proteins (PRPs), initially identified as structural proteins of cell wall, have emerged as multifunctional plant proteins in recent past. Their vibrant role in plant development and environmental stress promoted us to study a SlPRP gene of tomato, which was significantly downregulated under drought stress in a microarray experiment performed in our laboratory. Promoter analysis of SlPRP revealed a number of stress-responsive protein-binding sites, confirming its expression in response to stress. Expression of SlPRP gene in different tissues of tomato, viz. ischolar_main, stem, leaf and flower was studied to analyse the gene expression pattern in response to drought stress. Further, we have correlated the expression of SlPRP gene with Pro levels of the respective plant tissues under drought stress. In anticipation, it has been observed that downregulation of SlPRP gene is coupled with simultaneous increase in cellular Pro concentration in all the tissues under drought stress, except the ischolar_mains. This could help preserve the available cellular proline to function as osmoprotectant during stress. The present results propose a hypothesis where PRPs may regulate free cellular proline levels during drought stress by regulating their own gene expression. Thus, it may be concluded that transcription of PRPs in plants is synchronized with the cellular Pro concentration under environmental stress in order to provide drought tolerance to plants.Keywords
Drought Stress, Gene Expression, Prolinerich Proteins, Tomato.Full Text
References
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- Verbruggenm, N. and Hermans, C., Proline accumulation in plants: a review. Amino Acids, 2008, 35, 753–759.
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- Szabados, L. and Savoure, A., Proline: a multifunctional amino acid. Trends Plant Sci., 2010, 15, 89–97.
- Meringer, M. V. et al., Saline and osmotic stresses stimulate PLD/diacylglycerol kinase activities and increase the level of phosphatidic acid and proline in barley ischolar_mains. Environ. Exp. Bot., 2016, 128, 69–78.
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- Yamada, M., Morishita, H., Urano, K., Shiozaki, N., Yamaguchi-Shinozaki, K., Shinozaki, K. and Yoshiba, Y., Effects of free proline accumulation in petunias under drought stress. J. Exp. Bot., 2005, 56, 1975–1981.
- Hare, P. D., Cress, W. A. and Van-Staden, J., A regulatory role for proline metabolism in stimulating Arabidopsis thaliana seed germination. Plant Growth Regul., 2003, 39, 41–50.
- Kant, S., Kant, P., Raveh, E. and Barak, S., Evidence that differential gene expression between the halophyte Thellungiella halophila and Arabidopsis thaliana is responsible for higher levels of the compatible osmolyte proline and tight control of Na+ uptake in T. halophila. Plant Cell Environ., 2006, 29, 1220–1234.
- Design and Analysis of DNA Based Cipher for Image Using Dual Chaotic Map
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Authors
Ajit Singh
1,
Bijendra Singh
1
Affiliations
1 Department of Computer Science Engineering, Baba Mastnath University, India., IN
1 Department of Computer Science Engineering, Baba Mastnath University, India., IN
Source
ICTACT Journal on Soft Computing, Vol 13, No 3 (2023), Pagination: 2969-2976Abstract
Design and analysis of an image encryption technique using DNA computation and chaos function has been emphasized in the present paper. The plain image was scrambled using Henon map followed by the implementation of a DNA sequence addition operation over the scrambled image with the DNA sequence-based key generated by the Logistic map. Thereafter, the generated sequence was subjected to exclusive-or operation with partial key and modulo of sum of all the pixel values. The experimental and safety analysis highlighted that the proposed encryption technique was not only invertible and computationally efficient, but also had a large key space, was extremely sensitive to secret key credentials, had a high NPCR value and a low correlation coefficient, rendering the system efficient and secure against brute-force, statistical and differential attack.Keywords
Chaos Function, DNA Coding, DNA Computation, DNA Sequences, Image Encryption.References
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