Vijaya Kumar

1.2k total citations
54 papers, 922 citations indexed

About

Vijaya Kumar is a scholar working on Plant Science, Molecular Biology and Biochemistry. According to data from OpenAlex, Vijaya Kumar has authored 54 papers receiving a total of 922 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Plant Science, 23 papers in Molecular Biology and 11 papers in Biochemistry. Recurrent topics in Vijaya Kumar's work include Traditional and Medicinal Uses of Annonaceae (11 papers), Plant chemical constituents analysis (10 papers) and Phytochemical compounds biological activities (9 papers). Vijaya Kumar is often cited by papers focused on Traditional and Medicinal Uses of Annonaceae (11 papers), Plant chemical constituents analysis (10 papers) and Phytochemical compounds biological activities (9 papers). Vijaya Kumar collaborates with scholars based in Sri Lanka, Sweden and Germany. Vijaya Kumar's co-authors include Ulla Jacobsson, Veranja Karunaratne, Sinnathamby Balasubramaniam, P. A. Nimal Punyasiri, D.B.Mahinda Wickramaratne, I. Sarath B. Abeysinghe, Johannes Reisch, B. M. Ratnayake Bandara, AC Adebajo and M. Uvais S. Sultanbawa and has published in prestigious journals such as Journal of Chromatography A, Phytochemistry and Tetrahedron Letters.

In The Last Decade

Vijaya Kumar

54 papers receiving 865 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Vijaya Kumar Sri Lanka 18 431 412 190 141 126 54 922
Udom Kokpol Thailand 20 458 1.1× 318 0.8× 153 0.8× 97 0.7× 115 0.9× 37 933
C. Galeffi Italy 21 636 1.5× 592 1.4× 249 1.3× 139 1.0× 138 1.1× 93 1.3k
Elisabeth Seguin France 20 706 1.6× 541 1.3× 201 1.1× 203 1.4× 83 0.7× 87 1.2k
Yogendra N. Shukla India 21 515 1.2× 488 1.2× 144 0.8× 206 1.5× 76 0.6× 85 1.2k
Musa H. Abu Zarga Jordan 19 419 1.0× 416 1.0× 172 0.9× 318 2.3× 68 0.5× 66 981
Majekodunmi O. Fatope Oman 19 404 0.9× 656 1.6× 200 1.1× 318 2.3× 161 1.3× 42 1.3k
José S. Calderón Mexico 19 522 1.2× 405 1.0× 123 0.6× 131 0.9× 84 0.7× 63 970
Jerôme D. Msonthi Malawi 23 542 1.3× 829 2.0× 109 0.6× 214 1.5× 99 0.8× 58 1.3k
Cid Aimbiré de Moraes Santos Brazil 20 342 0.8× 395 1.0× 131 0.7× 202 1.4× 61 0.5× 65 961
Toshikazu Sekine Japan 18 417 1.0× 329 0.8× 192 1.0× 91 0.6× 41 0.3× 42 920

Countries citing papers authored by Vijaya Kumar

Since Specialization
Citations

This map shows the geographic impact of Vijaya 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 Vijaya Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Vijaya Kumar more than expected).

Fields of papers citing papers by Vijaya Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Vijaya 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 Vijaya Kumar. The network helps show where Vijaya Kumar may publish in the future.

Co-authorship network of co-authors of Vijaya Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of Vijaya Kumar. A scholar is included among the top collaborators of Vijaya 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 Vijaya Kumar. Vijaya Kumar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Mathew, Philip, et al.. (2020). Chromobacterium violaceum causing deadly sepsis. Iranian Journal of Microbiology. 12(4). 364–367. 9 indexed citations
2.
Kumar, Vijaya, et al.. (2014). Antioxidant and Hepatoprotective Potential of Leaves of Clitoria Ternatea (L). 1 indexed citations
3.
Kumar, Prashanth S., et al.. (2012). Production of Secondary Plant Metabolite Phyllanthin in Phyllanthus niruri Linn. by Leaf Tissue Culture. Research Journal of Pharmaceutical Biological and Chemical Sciences. 3(2). 752–761. 3 indexed citations
4.
Ramamoorthy, Siva, et al.. (2010). Molecular characterization of bixin—An important industrial product. Industrial Crops and Products. 32(1). 48–53. 36 indexed citations
5.
Kumar, N. Savitri, et al.. (2008). Separation of proanthocyanidins isolated from tea leaves using high-speed counter-current chromatography. Journal of Chromatography A. 1216(19). 4295–4302. 34 indexed citations
6.
Kumar, Vijaya, et al.. (2006). Olfactory response of Myzus persicae (Homoptera: Aphididae) to volatiles from leek and chive: Potential for intercropping with sweet pepper. Acta Agriculturae Scandinavica Section B - Soil & Plant Science. 57(1). 87–91. 19 indexed citations
7.
Punyasiri, P. A. Nimal, I. Sarath B. Abeysinghe, & Vijaya Kumar. (2005). Preformed and Induced Chemical Resistance of Tea Leaf Against Exobasidium vexans Infection. Journal of Chemical Ecology. 31(6). 1315–1324. 43 indexed citations
8.
Kumar, Vijaya, et al.. (2005). Bruchid (Coleoptera: Bruchidae) Ovicidal Phenylbutanoid from <I>Zingiber purpureum</I>. Journal of Economic Entomology. 98(4). 1163–1169. 13 indexed citations
9.
Punyasiri, P. A. Nimal, et al.. (2004). Exobasidium vexans infection of Camellia sinensis increased 2,3-cis isomerisation and gallate esterification of proanthocyanidins. Phytochemistry. 65(22). 2987–2994. 16 indexed citations
10.
Karunaratne, Veranja, B. M. Ratnayake Bandara, Vijaya Kumar, et al.. (2001). Antimicrobial alkaloids from Zanthoxylum tetraspermum and caudatum. Phytochemistry. 56(8). 857–861. 80 indexed citations
11.
Karunaratne, Veranja, et al.. (2001). Two New Lactones with Mosquito Larvicidal Activity from Three Hortonia Species. Journal of Natural Products. 64(3). 376–378. 39 indexed citations
12.
Kumar, Vijaya, et al.. (2000). Insecticidal piperidine alkaloid from Microcos paniculata stem bark. Phytochemistry. 54(1). 29–32. 45 indexed citations
13.
Jacobsson, Ulla, et al.. (1995). Sesquiterpene lactones from Michelia champaca. Phytochemistry. 39(4). 839–843. 64 indexed citations
14.
Kumar, Vijaya, et al.. (1995). Sesquiterpene Lactones fromMichelia nilagiricaRoot Bark. Planta Medica. 61(6). 587–587. 4 indexed citations
15.
Kumar, Vijaya, et al.. (1995). Coumarins from stem bark of Paramignya monophylla. Phytochemistry. 38(3). 805–806. 14 indexed citations
16.
Kumar, Vijaya, et al.. (1994). Coumarins and an indole alkaloid from Pamburus missionis. Phytochemistry. 36(4). 879–881. 17 indexed citations
17.
Kumar, Vijaya, et al.. (1990). Two fungicidal phenylethanones from Euodia lunu-ankenda root bark. Phytochemistry. 29(1). 243–245. 24 indexed citations
18.
Kiuchi, Fumiyuki, Xing Chen, Yoshisuke Tsuda, Kaoru Kondo, & Vijaya Kumar. (1989). Studies on crude drugs effective on visceral larva migrans. VI. Identification of nematocidal principles in Tephrosia purpurea PERS.. 43(1). 42–49. 2 indexed citations
19.
Kumar, Vijaya, et al.. (1985). 21α,26-dihydroxy-D:A-friedooleanan-3-one from Salacia reticulata var. Diandra (celastraceae). Phytochemistry. 24(9). 2067–2069. 20 indexed citations
20.
Wickramaratne, D.B.Mahinda, Vijaya Kumar, & Sinnathamby Balasubramaniam. (1984). Murragleinin, a coumarin from Murraya gleinei leaves. Phytochemistry. 23(12). 2964–2966. 11 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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