R. Raj Kumar

407 total citations
18 papers, 310 citations indexed

About

R. Raj Kumar is a scholar working on Pathology and Forensic Medicine, Plant Science and Biochemistry. According to data from OpenAlex, R. Raj Kumar has authored 18 papers receiving a total of 310 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Pathology and Forensic Medicine, 6 papers in Plant Science and 4 papers in Biochemistry. Recurrent topics in R. Raj Kumar's work include Tea Polyphenols and Effects (12 papers), Phytochemicals and Antioxidant Activities (4 papers) and Heavy Metals in Plants (2 papers). R. Raj Kumar is often cited by papers focused on Tea Polyphenols and Effects (12 papers), Phytochemicals and Antioxidant Activities (4 papers) and Heavy Metals in Plants (2 papers). R. Raj Kumar collaborates with scholars based in India. R. Raj Kumar's co-authors include N. Muraleedharan, Jibu Thomas, Ajit Kumar Shasany, Abul Kalam Azad Mandal, K.M. Maria John, V. Venkatesalu, K. P. Chellappan, R. Senthilkumar, K. V. Ramesh and Amal Jayakumar and has published in prestigious journals such as Food Chemistry, Phytochemistry and Journal of the Science of Food and Agriculture.

In The Last Decade

R. Raj Kumar

18 papers receiving 270 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
R. Raj Kumar India 10 137 121 114 77 54 18 310
R. C. Muoki Kenya 10 156 1.1× 108 0.9× 134 1.2× 41 0.5× 30 0.6× 19 296
Litang Lu China 9 127 0.9× 77 0.6× 113 1.0× 45 0.6× 23 0.4× 31 253
Lidiia Samarina Russia 12 259 1.9× 78 0.6× 197 1.7× 39 0.5× 41 0.8× 51 407
Xinzhuan Yao China 9 134 1.0× 85 0.7× 112 1.0× 42 0.5× 28 0.5× 39 262
Peixian Bai China 11 213 1.6× 134 1.1× 160 1.4× 63 0.8× 43 0.8× 19 380
Fen-Xia Han China 9 364 2.7× 143 1.2× 81 0.7× 66 0.9× 27 0.5× 17 490
Ayhan Haznedar Türkiye 7 213 1.6× 65 0.5× 86 0.8× 51 0.7× 37 0.7× 17 312
Du Hyun Kim South Korea 10 185 1.4× 52 0.4× 117 1.0× 98 1.3× 33 0.6× 20 326
Do Yoon Hyun South Korea 12 245 1.8× 36 0.3× 98 0.9× 88 1.1× 28 0.5× 51 392
Wang Lianzheng China 8 316 2.3× 108 0.9× 102 0.9× 53 0.7× 19 0.4× 11 419

Countries citing papers authored by R. Raj Kumar

Since Specialization
Citations

This map shows the geographic impact of R. Raj Kumar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R. Raj Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Raj Kumar more than expected).

Fields of papers citing papers by R. Raj Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Raj Kumar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R. Raj Kumar. The network helps show where R. Raj Kumar may publish in the future.

Co-authorship network of co-authors of R. Raj Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of R. Raj Kumar. A scholar is included among the top collaborators of R. Raj Kumar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. Raj Kumar. R. Raj Kumar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Kumar, R. Raj, et al.. (2021). Comparative Study on Quantification of Total Catechins Using UV-Vis Spectrophotometric Method and High Performance Liquid Chromatography Techniques. Oriental Journal Of Chemistry. 37(1). 136–142. 1 indexed citations
2.
Kumar, R. Raj, et al.. (2020). El Niño–Southern Oscillation (ENSO) Impact on Tea Production and Rainfall in South India. Journal of Applied Meteorology and Climatology. 59(4). 651–664. 10 indexed citations
3.
Kumar, R. Raj, et al.. (2019). Biochemical Changes During Withering Process of CTC Black Tea Manufacture. Oriental Journal Of Chemistry. 35(4). 1313–1319. 4 indexed citations
4.
Thomas, Jibu, et al.. (2010). Influence of beneficial microorganisms during in vivo acclimatization of in vitro-derived tea (Camellia sinensis) plants. Plant Cell Tissue and Organ Culture (PCTOC). 101(3). 365–370. 30 indexed citations
5.
Thomas, Jibu, et al.. (2009). Studies on radical scavenging activity of tea leaves and effect of additives on activities of black tea liquor. International Journal of Food Science & Technology. 44(10). 2070–2074. 10 indexed citations
6.
Thomas, Jibu, R. Senthilkumar, R. Raj Kumar, Abul Kalam Azad Mandal, & N. Muraleedharan. (2007). Induction of γ irradiation for decontamination and to increase the storage stability of black teas. Food Chemistry. 106(1). 180–184. 23 indexed citations
7.
John, K.M. Maria, et al.. (2005). Genetic diversity of UPASI tea clones (Camellia sinensis (L.) O. Kuntze) on the basis of total catechins and their fractions. Phytochemistry. 66(5). 561–565. 38 indexed citations
8.
Thomas, Jibu, et al.. (2005). Influence of age after pruning on the levels of flavanols and other bioconstituents in tea (Camellia sinensis). Journal of the Science of Food and Agriculture. 85(6). 931–934. 11 indexed citations
9.
Kumar, R. Raj, et al.. (2004). Agrobacterium tumefaciens-Mediated genetic transformation in tea (Camellia sinensis [L.] O. Kuntze). Plant Molecular Biology Reporter. 22(2). 201–202. 31 indexed citations
10.
Thomas, Jibu, et al.. (2004). A reliable technique to identify superior quality clones from tea germplasm. Food Chemistry. 91(4). 771–778. 15 indexed citations
11.
Jayakumar, Amal, et al.. (2003). Relation of altered protein expression with chlorophyll fluorescence in tea under water stress. Indian Journal of Plant Physiology. 8(3). 214–218. 4 indexed citations
12.
Kumar, R. Raj, et al.. (2003). Photoassimilatory and Photorespiratory Behaviour of Certain Drought Tolerant and Susceptible Tea Clones. Photosynthetica. 41(4). 579–582. 7 indexed citations
13.
14.
Kumar, R. Raj, et al.. (2001). Physiological and biochemical responses of micropropagated tea plants. In Vitro Cellular & Developmental Biology - Plant. 37(5). 618–621. 8 indexed citations
15.
Kumar, R. Raj, et al.. (1999). Fertilizer nitrogen recovery in tea as influenced by nitrogen levels. Communications in Soil Science and Plant Analysis. 30(11-12). 1747–1758. 3 indexed citations
16.
Venkatesalu, V., R. Raj Kumar, & K. P. Chellappan. (1994). Growth and mineral distribution of Sesuvium portulacastrum l., a salt marsh halophyte, under sodium chloride stress. Communications in Soil Science and Plant Analysis. 25(15-16). 2797–2805. 14 indexed citations
17.
Venkatesalu, V., R. Raj Kumar, & K. P. Chellappan. (1994). Sodium chloride stress on organic constituents ofSesuvium portulacastrumL., a salt marsh halophyte. Journal of Plant Nutrition. 17(10). 1635–1645. 8 indexed citations
18.
Kumar, R. Raj, et al.. (1991). Effect of a commercial plant growth regulator on the elemental content of tea plants. Communications in Soil Science and Plant Analysis. 22(15-16). 1581–1590. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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