International Journal of Library & Information Science (IJLIS) Volume 6, Issue 5, September October 2017, pp. 100 112, Article ID: IJLIS_06_05_010 Available online at http://www.iaeme.com/ijlis/issues.asp?jtype=ijlis&vtype=6&itype=5 Journal Impact Factor (2016): 8.2651 (Calculated by GISI) www.jifactor.com ISSN Print: 2277-3533 and ISSN Online: 2277-3584 IAEME Publication CITATION ANALYSIS OF PH. D THESES IN CROP PHYSIOLOGY SUBMITTED TO UNIVERSITY OF AGRICULTURAL SCIENCE DHARWAD Jayalaxmi Kittur Research Scholar, Rani Channamma University, Belagavi, Karnataka, India Dr. Vinayak Bankapur Chairman, Department of Library and Information Science, Rani Channamma University, Belagavi, Karnataka, India ABSTRACT The present is study is the analysis of citations appended on doctoral dissertations in Crop Physiology submitted to University of Agricultural Sciences Dharwad. There are total 36 doctoral theses awarded in the duration 1987 to 2013 and these 36 theses yielded 7499 citations. These citations were analyzed to find the information seeking pattern of Crop Physiology researchers in UAS Dharwad. Citations are analyzed to find the bibliographic forms approached by researchers, chronological distribution of citations, geographic distribution of citations, and to prepare the ranked list of journals. Methodology: Methodology opted for study is simple counting of citations Findings: Researchers of crop physiology prefer journal articles. 75.5% of total citations are journal articles. Researchers cited Indian originated publications more than other countries. Key words: Journal Ranking, Bradford s law of journal scattering, Citation Analysis, Bibliometric Analysis. Cite this Article: Jayalaxmi Kittur and Dr. Vinayak Bankapur, Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad. International Journal of Library & Information Science, 6(5), 2017, pp. 100 112. http://www.iaeme.com/ijlis/issues.asp?jtype=ijlis&vtype=6&itype=5 http://www.iaeme.com/ijlis/index.asp 100 editor@iaeme.com
Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad 1. INTRODUCTION Citations mentioned in scholarly communication are guide to other researchers working in same field. Citations or the references mentioned in theses or dissertations are used as a tool to know the information seeking pattern of researchers of the institute. Citation analysis is a technique of bibliometric study of literature based upon some degree of relationship between citing and cited articles or documents. Citation analysis is used to know which periodicals are most productive in a particular field of knowledge. It is used to identify the pattern of publication, authorship, citation and secondary journal s coverage. The earliest citation analysis carried out by Gross and Gross in the year 1927. He attempted to rank the journals in Chemistry. Crop Physiology is a branch of Agricultural sciences which deals with the study about seed physiology, seed structure, and morphological physiological and biochemical changes during seed development. University of Agricultural Sciences Dharwad is established in the year 1986. University is offering UG, Doctoral and Post-Doctoral programmes in Agricultural Sciences and Home Science. The first PhD awarded by the Department of Crop Physiology earlier the department known as Agricultural Botany in the year 1987 2. OBJECTIVES The study carried out with following objectives To find the number of doctoral theses submitted per year. To know the bibliographic forms approached by researchers. To find the degree of collaboration authorship in Crop Physiology. To study the geographic distribution of publications To study the age wise distribution of citations and to calculate the obsolescence of publications in Crop physiology To prepare the rank list of journals. 3. HYPOTHESIS Journals are most approached by researchers than other forms Collaborative authorship is high Indian publications are cited more compared to other countries 4. REVIEW OF RELATED LITERATURE Zipp ( 1996 ) not only analyzes the citations of the dissertations to evaluate the collection of the library specialized in Geology, but also studies the citations of the articles published by the researchers and compares both results. Gooden ( 2001 ) analyzes the Ph.D. dissertations of the Ohio State University Chemistry Department between 1996 and 2000. The conclusion reached is that only 12 journals are necessary to cover 50 percent of the references and demonstrates that most of the citations correspond to articles published in scientific journals. Shafi and Gazi (2005) studied citations of Doctoral Thesis submitted to Kashmir University in Natural Sciences. They analyzed 11,862 citations for identifying bibliographic form, citation potential, journal ranking and to study the obsolescence rate.. Prashant P. Deshmukh ( 1998 ) under took study of citation analysis of Ph. D. Theses submitted to Punjabrao Krishi vidya peeth during 1990 94 for the doctoral degree under the guidance of P. S. G. Kumar.. The Phd theses accepted in the duration 1990-94 are the source for the study. There are 89 theses accepted to award doctoral degree. Total 11698 citations are http://www.iaeme.com/ijlis/index.asp 101 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur analyzed to find the format of citations, authorship pattern, core journals, geographical distribution of publications, Age wise distribution of citations. The study also extended to check the availability of resources which are cited in doctoral theses. The subjects come under agricultural sciences taken for study are, Agricultural chemistry, Agriculture Economics, Agriculture extension education, Agronomy, Botany, Entomology, Horticulture, Plant Pathology and Veterinary sciences Banateppanvar, Koteppa, Biradar, B.S., and Kannappanavar B.U. (2013)studied the citations appended on doctoral theses of botany, submitted to the Kuvempu University during the years 2000-2006 to suggest in collection development of the library. 5. SCOPE AND LIMITATIONS OF THE STUDY The present study is Citation analysis of Doctoral thesis of Crop Physiology submitted to University of Agricultural Sciences Dharwad in the duration 1987 to 2013. There are 36 doctoral theses submitted to the department of Crop Physiology in the duration 1987 to 2013 in University of Agricultural Sciences Dharwad. These 36 theses having 7498 citations. Citations are analyzed to check the Bibliographic form, Authorship pattern, Age wise distribution, Geographic distribution, Language wise distribution of citations appended on the theses of Crop Physiology. 6. METHODOLOGY Simple citation counting is opted methodology for the present study. Each theses submitted in the department of Crop Physiology in University of Agricultural Sciences Dhawad in the duration 1987 to 2013 are approached physically. The bibliographic information of every thesis i.e. title of the thesis, researcher name, guide name, thesis number, year of submission are recorded in a particular format in Excel sheet. The citations are also entered in excel sheet for the analysis. The Author, Title, Journal Name/Book Title/conference name, type of resource (journal/book/proceedings/reports), Year of publication, Place(country) of publication are recorded in excel sheet. Place of publications of Journal articles are found by searching them in Worldcat, NBM catalogue, and through the google. 7. RESULTS AND ANALYSIS There are total 36 Ph Ds awarded in the duration 1987 to 2013 in the department of crop physiology of University of Agricultural Sciences Dharwad. The year wise distribution of theses is given in the following Table 1. The data shows that on an average every year at least one Ph.D. is awarded by the department. The number of theses increased after 1990. The highest number of theses received in the year 1995-1999 & 2004-2007 i.e. 8 (22.2%) of theses awarded PhD. 6 theses are awarded Ph. D in the duration 1991-94 and in 2000-2003. More citations cited in those theses submitted in period 2000-2003 average citation per thesis in this period found 275. Average citations found in thesis are 208. Sl. No Year Table 1 Yearwise distribution of theses No of Theses Percentage Average Thesis per year Citations Average citations per theses 1 1987-1990 2 5.50% 0.5 456 228 2 1991-1994 6 16.70% 1.5 1075 179.166667 3 1995-1999 8 22.20% 2 1207 150.875 4 2000-2003 6 16.70% 1.5 1648 274.666667 5 2004-2007 8 22.20% 2 1690 211.25 6 2008-2013 6 16.70% 1.5 1422 237 s Total 36 100% 1.38 7498 208.277778 http://www.iaeme.com/ijlis/index.asp 102 editor@iaeme.com
Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad 7.1. Bibliographic form wise distribution of citations Crop physiology scientists approached journals, books, reports, statistics, survey reports, proceedings of conferences/workshops/seminars/symposiums for their research work. The data is presented in the following Table 2. The data obtained reveals that researchers prefer and rely on journal articles most. 75.5 % of the citations are journal articles. The rest 24.5% of citations are Books (9.5%), Proceedings (5.45) Theses MSc and PhD ( 3.8%) Newsletter (1.5 %) Annual reports (.9%) Reports (.89%), Abstracts, newspapers, Monographs, E-Resources, Hand books, manuals, survey reports etc.. All together form 24.5%. The data proved the first hypothesis journals are most preferable form of information for the researchers. Journals gives nascent and authentic information and time barrier is less compared to book s and other forms of resources. Hence the researchers always prefer journals for their information need. Table 2 Bibliographic form wise distribution of citations Type of resource No. of Citations Cumulative Percentage Journals 5667 5667 75.58015471 Books 718 6385 9.575886903 Proceedings 409 6794 5.454787943 Thesis MSc ( Agri) 196 6990 2.614030408 Thesis PhD 91 7081 1.213656975 News Letter 113 7263 1.507068552 Annual Report 69 7330 0.920245399 Report 67 7330 0.893571619 Abstracts 52 7382 0.693518272 E resources 47 7429 0.626833822 Monographs 11 7440 0.146705788 Year book 10 7450 0.133368898 Research Report 9 7459 0.120032009 Hand book 8 7467 0.106695119 Govt Pub 6 7473 0.080021339 Paper 5 7478 0.066684449 Manual 7 7485 0.093358229 Encyclopedia 3 7488 0.04001067 News paper 2 7490 0.02667378 Lecture Notes 1 7491 0.01333689 Letter 1 7492 0.01333689 Statistics 3 7495 0.04001067 Survey 3 7498 0.04001067 Total 7498 100 Type of resource Journals Books Proceedings Thesis MSc ( Agri) Thesis PhD Figure 1 http://www.iaeme.com/ijlis/index.asp 103 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur 7.2. Chronological distribution of citations The chronological distribution of citations is given the table 3. It is found from data that the oldest citation cited in crop physiology Ph D theses is 1831. The citations published in the duration 1831 to 1950 found in theses is 236 (3.2 %). The research data reveals that researchers cited highest citations 29.6 % of citations (2216) which are published in the duration 1981 to 1990. Very least number of citations cited after 2010 as data chosen for the study theses submitted in the duration 1987-2013. This data shows that researchers referred latest literature. Table 3 Chronological distribution of citations Year Citations Cumulative Citations Percentage 1831-1950 236 236 3.2 1951-1960 271 507 3.6 1961-1970 830 1337 11 1971-1980 1891 3228 25.2 1981-1990 2216 5444 29.6 1991-2000 1614 7058 21.5 2001-2010 419 7477 5.6 2010-21 7498 0.3 100 7.3. Authorship Pattern Authorship study is one of the important application of bibliometric study, this is to find the author productivity, impact factor of authors, ranking of authors based on the citations cited by the particular author. Here authorship pattern is studied to find the degree of collaboration. Most of the scientific studies are carried in collaboration as the studies cannot be handled by single person most of the time. Most of the experiments inventions researches carried out with team in research institutes. The following table 4 is about the distribution of citations on the base of its authorship. The found data revealed that only 28.74% citations are single authored and rest all multiple authored. Researchers cited some citations i.e. annual reports, reports which are authored by corporate authorship they are about 0.6%. Table 4 Number of Authors wise distribution Citations SlNo No.of Authors No.of citations Percentage Ranking 1 1 2155 28.74 2 2 2 2531 33.76 1 3 3 1576 21.02 3 4 4 824 11 4 5 5 211 2.8 5 6 6 96 1.28 6 7 7 27 0.36 9 8 More than 7 33 0.44 8 9 Corporate Author 45 0.6 7 100 http://www.iaeme.com/ijlis/index.asp 104 editor@iaeme.com
Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad No.of Authors 1 2 3 4 5 6 7 Figure 2 Degree of Collaboration in a discipline is calculated by the formula. Year wise calculation is given in the table 5 DC = Nm/ Nm+Ns Nm = Number of Multi Authored Papers Ns= Number of Single Authored Papers DC= 5343/7498 = 0.712 Table 5 Year wise calculation of Degree of collaboration More than Three Total Citations Nm DC = Nm/Ns+NM Year Single Two Three CA 1974-1979 349 450 251 140 5 1195 846 0.707949791 1980-1984 262 429 256 145 3 1095 833 0.760730594 1985-1990 348 473 310 209 10 1350 1002 0.742222222 1991-1995 168 279 257 215 7 926 758 0.818574514 1996-2000 142 179 158 209 1 689 547 0.793904209 2001-2005 66 84 80 106 3 339 273 0.805309735 2006-2010 12 17 21 29 1 80 68 0.85 Total 1347 1911 1333 1053 30 5674 4327 0.762601339 7.4. Geographic Distribution of citations Geographic distribution of citations is computed to know which country is productive in the particular subject area. The present study is aimed to know the publications from which country is referred more by researchers in Crop Physiology of UAS Dharwad. The following table No. 6 gives the data regarding country wise distribution of citations. Indian publications are approached more frequently than other countries. Publications which are published in India are cited most and India ranked first i.e it is about 36.9 % of citations are from India. The USA ranked second covers 28.03% and UK ranked third covers 8.52% of citations. Researchers approached worldwide literature for their research fulfillment. There were some citations whose place of publication could not identify. There are 89 such citations 1.18% of total citations. The following chart and table 6 illustrates geographical distribution of citations http://www.iaeme.com/ijlis/index.asp 105 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur Table 6 Geographic wise distribution of citations Sl. No Place of publication No of citations Percentage Rank 1 India 2774 36.9 1 2 USA 2102 28.03 2 3 UK 641 8.52 3 4 Netherlands 278 3.7 4 5 Germany 233 3.1 5 6 Australia 224 2.9 6 7 China 130 1.72 7 8 Japan 96 1.2 8 9 Scandinavian 89 1.1 9 10 Belgium 68 0.9 10 11 Philippines 63 0.8 11 12 Canada 61 0.8 12 13 Pakistan 57 0.7 13 14 Russia 55 0.7 14 15 Brazil 52 0.7 15 16 Egypt 45 0.6 16 17 Czecoslovakia 44 0.57 17 18 Italy 33 0.43 18 19 Nigeria 26 0.35 19 20 NA 89 1.18 20 21 Other Countries 338 5.1 Total 7498 100 India USA UK Netharlands Germany Australia China Figure 3 7.5. Citation Frequency for Crop Physiology Table 7 shows the age wise dispersion of cited books and journal articles. It is clear from the following table 7 the one fourth of citations i.e. 25 % of book citations are 15 years old and 50 % of total citations are 25 years old. 75 % of the citations are 35 years old hence the books in crop physiology will become obsolete after 35 years. Table 8 reveals that the 25 % of citations are 9 years old and 50% of citations are 16 years old hence the half-life of journal articles is 16 years for the crop physiology and 75% of citations are 25 years old hence the journal articles will become obsolete after 25 years in crop physiology http://www.iaeme.com/ijlis/index.asp 106 editor@iaeme.com
Age of citatio ns Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad No of Citatio ns Books Cumulati ve Citations Table 7 Citation frequency in Crop Physiology Cumulati ve Percenta ge Age in Yea rs No.of Citatio ns Journals Cumulati ve Citations Cumulati ve Percenta ge Percenta ge percenta ge 0 1 1 0.145349 0.145349 0 8 8 0.139543 0.139543 1 1 2 0.145349 0.290698 1 37 45 0.645386 0.784929 2 4 6 0.581395 0.872093 2 100 145 1.744287 2.529217 3 8 14 1.162791 2.034884 3 125 270 2.180359 4.709576 4 5 19 0.726744 2.761628 4 156 426 2.721088 7.430665 5 12 31 1.744186 4.505814 5 158 584 2.755974 10.18664 6 11 42 1.598837 6.104651 6 187 771 3.261818 13.44846 7 11 53 1.598837 7.703488 7 186 957 3.244375 16.69283 8 15 68 2.180233 9.883721 8 195 1152 3.401361 20.09419 9 11 79 1.598837 11.48256 9 203 1355 3.540904 23.6351 10 15 94 2.180233 13.66279 10 215 1570 3.750218 27.38531 11 18 112 2.616279 16.27907 11 198 1768 3.453689 30.839 12 17 129 2.47093 18.75 12 187 1955 3.261818 34.10082 13 13 142 1.889535 20.63953 13 210 2165 3.663004 37.76382 14 17 159 2.47093 23.11047 14 205 2370 3.575789 41.33961 15 21 180 3.052326 26.16279 15 198 2568 3.453689 44.7933 16 27 207 3.924419 30.08721 16 204 2772 3.558346 48.35165 17 24 231 3.488372 33.57558 17 229 3001 3.994418 52.34607 18 12 243 1.744186 35.31977 18 182 3183 3.174603 55.52067 19 13 256 1.889535 37.2093 19 161 3344 2.808303 58.32897 20 13 269 1.889535 39.09884 20 184 3528 3.209489 61.53846 21 19 288 2.761628 41.86047 21 176 3704 3.069946 64.60841 22 15 303 2.180233 44.0407 22 149 3853 2.598988 67.2074 23 9 312 1.30814 45.34884 23 166 4019 2.895517 70.10291 24 28 340 4.069767 49.4186 24 155 4174 2.703646 72.80656 25 15 355 2.180233 51.59884 25 129 4303 2.250131 75.05669 26 27 382 3.924419 55.52326 26 130 4433 2.267574 77.32426 27 24 406 3.488372 59.01163 27 129 4562 2.250131 79.57439 28 20 426 2.906977 61.9186 28 112 4674 1.953602 81.528 29 25 451 3.633721 65.55233 29 88 4762 1.534973 83.06297 30 22 473 3.197674 68.75 30 103 4865 1.796616 84.85958 31 12 485 1.744186 70.49419 31 82 4947 1.430316 86.2899 32 7 492 1.017442 71.51163 32 79 5026 1.377987 87.66789 33 12 504 1.744186 73.25581 33 64 5090 1.116344 88.78423 34 18 522 2.616279 75.87209 34 64 5154 1.116344 89.90058 35 14 536 2.034884 77.90698 35 40 5194 0.697715 90.59829 36 9 545 1.30814 79.21512 36 36 5230 0.627943 91.22623 37 11 556 1.598837 80.81395 37 50 5280 0.872144 92.09838 38 10 566 1.453488 82.26744 38 47 5327 0.819815 92.91819 39 14 580 2.034884 84.30233 39 32 5359 0.558172 93.47636 40 13 593 1.889535 86.19186 40 34 5393 0.593058 94.06942 41 14 607 2.034884 88.22674 41 27 5420 0.470958 94.54038 42 7 614 1.017442 89.24419 42 35 5455 0.610501 95.15088 43 5 619 0.726744 89.97093 43 25 5480 0.436072 95.58695 44 4 623 0.581395 90.55233 44 19 5499 0.331415 95.91837 45 3 626 0.436047 90.98837 45 14 5513 0.2442 96.16257 46 4 630 0.581395 91.56977 46 23 5536 0.401186 96.56375 47 1 631 0.145349 91.71512 47 13 5549 0.226757 96.79051 48 4 635 0.581395 92.29651 48 17 5566 0.296529 97.08704 49 4 639 0.581395 92.87791 49 12 5578 0.209314 97.29635 http://www.iaeme.com/ijlis/index.asp 107 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur 50 1 640 0.145349 93.02326 50 8 5586 0.139543 97.4359 51 1 641 0.145349 93.1686 51 11 5597 0.191872 97.62777 52 4 645 0.581395 93.75 52 8 5605 0.139543 97.76731 53 3 648 0.436047 94.18605 53 6 5611 0.104657 97.87197 54 3 651 0.436047 94.62209 54 10 5621 0.174429 98.0464 55 4 655 0.581395 95.20349 55 5 5626 0.087214 98.13361 56 5 660 0.726744 95.93023 56 6 5632 0.104657 98.23827 57 2 662 0.290698 96.22093 57 3 5635 0.052329 98.2906 58 0 662 0 96.22093 58 4 5639 0.069771 98.36037 59 0 662 0 96.22093 59 5 5644 0.087214 98.44758 60 0 662 0 96.22093 60 4 5648 0.069771 98.51736 61 0 662 0 96.22093 61 5 5653 0.087214 98.60457 62 1 663 0.145349 96.36628 62 3 5656 0.052329 98.6569 69 1 664 0.145349 96.51163 63 4 5660 0.069771 98.72667 71 1 665 0.145349 96.65698 64 3 5663 0.052329 98.779 80 2 667 0.290698 96.94767 65 3 5666 0.052329 98.83133 82 3 670 0.436047 97.38372 66 3 5669 0.052329 98.88366 83 3 673 0.436047 97.81977 67 5 5674 0.087214 98.97087 85 3 676 0.436047 98.25581 68 0 5674 0 98.97087 87 1 677 0.145349 98.40116 69 3 5677 0.052329 99.0232 88 1 678 0.145349 98.54651 70 3 5680 0.052329 99.07553 89 1 679 0.145349 98.69186 71 1 5681 0.017443 99.09297 90 2 681 0.290698 98.98256 72 3 5684 0.052329 99.1453 91 1 682 0.145349 99.12791 73 0 5684 0 99.1453 92 1 683 0.145349 99.27326 74 3 5687 0.052329 99.19763 96 1 684 0.145349 99.4186 75 3 5690 0.052329 99.24996 113 1 685 0.145349 99.56395 76 0 5690 0 99.24996 131 1 686 0.145349 99.7093 77 5 5695 0.087214 99.33717 161 1 687 0.145349 99.85465 78 4 5699 0.069771 99.40694 NA 1 688 0.145349 100 79 4 5703 0.069771 99.47671 80 3 5706 0.052329 99.52904 81 5 5711 0.087214 99.61626 82 3 5714 0.052329 99.66859 83 0 5714 0 99.66859 84 1 5715 0.017443 99.68603 85 3 5718 0.052329 99.73836 86 1 5719 0.017443 99.7558 87 1 5720 0.017443 99.77324 88 3 5723 0.052329 99.82557 89 2 5725 0.034886 99.86046 90 2 5727 0.034886 99.89534 91 1 5728 0.017443 99.91279 92 1 5729 0.017443 99.93023 100 1 5730 0.017443 99.94767 106 1 5731 0.017443 99.96511 107 1 5732 0.017443 99.98256 148 1 5733 0.017443 100 8. CORE JOURNALS Journals are ranked here on the base of its frequency in citations to find core journals in crop physiology. This ranking will help in taking decision to add or remove the particular journal in the library. Journals cited minimum 10 times are only considered in ranking. The following table 8 is the rank list of journals cited in PhD theses of Crop Physiology in UAS Dharwad. Plant Physiology and Crop Science journals are ranked first they have 392 citations each and covers 6.95% of citations. Agronomy Journal and Indian Journal of Plant Physiology ranked second http://www.iaeme.com/ijlis/index.asp 108 editor@iaeme.com
Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad Table 8 Jounal Ranking Sl. No Journal Name No. of Citations Percentage Ranking No. of Journals 1 Plant Physiology 392 6.94666 1 2 5 2 Crop Science 392 6.94666 1 3 Agronomy Journal 226 4.004962 2 2 Indian Journal of Plant 4 Physiology 226 4.004962 2 Indian Journal of Agricultural 5 Science 211 3.739146 3 1 6 Madras Agricultural Journal 157 2.782208 4 1 25 7 Journal of Maharashtra Agricultrual University 138 2.445508 5 1 8 Annals of Botany 83 1.470849 6 1 9 ActaHorticulturae 67 1.187312 7 2 10 Annual Review of Plant Physiology 67 1.187312 7 11 Australian Journal of Agricultrual Research 63 1.116427 8 2 Australian Journal of Plant Physiology 63 1.116427 8 12 13 Plant and Soil 61 1.080985 9 1 14 PhysiolgiaPlantarum 60 1.063264 10 2 15 South Indian Horticulture 60 1.063264 10 16 Field Crop Research 54 0.956938 11 2 17 Indian Journal of Agronomy 54 0.956938 11 Mysore Journal of Agricultural 18 Sciences 52 0.921496 12 1 19 Legume Research 50 0.886054 13 1 20 Journal of Experimental Botany 45 0.797448 14 1 21 Weed Science 43 0.762006 15 1 22 Journal of Agricultural and Food Chemistry 42 0.744285 16 2 Indian Journal of Genetics and 23 Plant Breeding 42 0.744285 16 24 Annals of Plant Physiology 35 0.620237 17 1 25 Karnataka Journal of Agricultural Science 33 0.584795 18 1 26 Current Sciecne 33 0.584795 19 1 27 Nature 30 0.531632 20 1 Australian Journal of 28 Biological Science 29 0.513911 21 3 29 Journal of Agricultural Science 29 0.513911 21 Journal of American Society 30 for Horticultural Science 29 0.513911 21 31 Agroforestry Systems 28 0.49619 22 2 72 Annals of Agricultural 32 Research 28 0.49619 22 33 Indian Journal of Horticulture 27 0.478469 23 3 34 Journal of Indian Society of Soil Science 27 0.478469 23 35 Photosynthetica 27 0.478469 23 36 Experimental Agriculture 26 0.460748 24 2 Journal of Agronomy and Crop 37 Science 26 0.460748 24 38 Indian Journal of Genetics 25 0.443027 25 2 http://www.iaeme.com/ijlis/index.asp 109 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur 39 Phytochemistry 25 0.443027 25 40 Postharvest Biology and Technology 24 0.425306 26 4 41 Andhra Agricultural Journal 24 0.425306 26 42 Cotton Development 24 0.425306 26 43 Weed Research 24 0.425306 26 44 American Journal of Botany 23 0.407585 27 1 45 Crop Research 22 0.389864 28 3 46 Indian Forester 22 0.389864 28 Journal of Horticultural 47 Science 22 0.389864 28 Canadian Journal of Plant Science 21 0.372142 29 2 48 49 Planta 21 0.372142 29 50 Annals of Applied Biology 20 0.354421 30 2 51 HortScinece 20 0.354421 30 52 Current Research 19 0.3367 31 6 53 Indian Journal of Biochemistry and Biophysics 19 0.3367 31 54 Journal of Australian Institute of Agricultural Sciences 19 0.3367 31 55 Proceedings of Indian National Science Academi 19 0.3367 31 56 Progressive Horticulture 19 0.3367 31 57 Indian Journal of Agricultural Research 18 0.318979 32 7 58 Canadian Journal of Botany 17 0.301258 32 59 Haryana Journal of Horticultural Sciences 17 0.301258 32 Journal of Economic and 60 Entomology 17 0.301258 32 61 Journal of Food Science 17 0.301258 32 Journal of Research Andhra 62 Pradesh Agricultural University 17 0.301258 32 63 Scientia Horticulturae 17 0.301258 32 Journal of Indian Society for Cotton Improvement 16 0.283537 33 6 64 65 New Phytologist 16 0.283537 33 66 Pakistan Cotton 16 0.283537 33 67 Plant Growth Regulation 16 0.283537 33 68 Proceedings of Crop Science Society of Japan 16 0.283537 33 69 Science 16 0.283537 33 70 Annals of Arid Zone 15 0.265816 34 11 Environment and Experimental 71 Botany 15 0.265816 34 72 Journal of Plant Nutrition 15 0.265816 34 Journal of Science of Food and Agriculture 15 0.265816 34 73 74 Punjab Horticultural Journal 15 0.265816 34 75 Soybean Genetics Newsletter 15 0.265816 34 76 Horticultural Science 14 0.248095 34 Indian Cocoa Arecanut and 77 Spices Journal 14 0.248095 34 78 Indian Cotton Growing Review 14 0.248095 34 Journal of Food Science and 79 Technology 14 0.248095 34 80 Plant Cell and Environment 14 0.248095 34 http://www.iaeme.com/ijlis/index.asp 110 editor@iaeme.com
Citation Analysis of Ph. D Theses in Crop Physiology Submitted to University of Agricultural Science Dharwad 81 Journal of Agricultural Research 13 0.230374 35 3 82 Journal of Biological Chemistry 13 0.230374 35 83 Soil Science Society of America Proceedings 13 0.230374 35 84 Agronomy Abstract 12 0.212653 36 5 85 BiologiaPlantarium 12 0.212653 36 86 Japanese Journal of Crop Science 12 0.212653 36 87 PunjabraoKrishiVidyapeeth Research Journal 12 0.212653 36 88 Vegetable Science 12 0.212653 36 89 Genetics 11 0.194932 37 3 90 Theoretical and Applied Gentetics 11 0.194932 37 91 Zeitschrift fur Pflanzenphysiologie : International Journal of Plant Physiology 11 0.194932 37 92 Agricultural Science Digest 10 0.177211 38 11 93 Annals of Agricultural Science 10 0.177211 38 94 Communications in soil science and plant analysis 10 0.177211 38 95 Crop Improvement 10 0.177211 38 96 Indian Journal of Pluse Research 10 0.177211 38 97 Journal of Korean Society of Horticultural Science 10 0.177211 38 98 Journal of Oilseed Research 10 0.177211 38 99 Journal of Soil and Crops 10 0.177211 38 100 Plant and cell Physiology 10 0.177211 38 101 Proceedings of Florida State Horticultural Society 10 0.177211 38 102 Soil Science 10 0.177211 38 9. FINDINGS In the present study 7498 citations from 36 theses in Crop Physiology submitted to UAS Dharwad were analyzed. The study reveals the following findings The highest number of PhDs awarded from the Department of Crop Physiology in UAS Dharwad in the duration 1995-1999 & 20047-2007 i.e. 8 (22.2%). Average number of citation per thesis found 208 Researchers cited journal articles more than other form of resources. Out of 7498 citations 5667 citations are of journal articles. The major part of citations are of Books, Proceedings Theses and Reports. From table 2 the data proved the first hypothesis of the research that researchers prefer most journals for their research Publications published in the duration 1981-1990 i. e. 2216 citations are highest cited. Publications published in the duration 1991-2000 ranked second. The data reveals that researchers refer latest information resources. Citations studied found multiple authored more than single authored. There are 2155 (28.4%) citations are only single authored remaining citations are two, three, four, five,six, seven, more than seven and corporate authors. The degree of collaboration is found in the Crop Physiology is 0.76. The data proves the second hypothesis that collaboration is high. http://www.iaeme.com/ijlis/index.asp 111 editor@iaeme.com
Jayalaxmi Kittur and Dr. Vinayak Bankapur Publications published from India are cited most in theses. Indian publications ranked first.2774 citations 36.9% of total citations are cited in doctoral dissertations of Crop Physiology, The Publications from USA and UK are ranked second and third respectively ie 2102 citations ( 28.03%) and 641 (8.52%).. This proves the third hypothesis of the study that researchers cited Indian publications more than of other countries It is found from study that half-life for books publication is 25 years and after 35 year books will become obsolete in crop Physiology. Half-life for journals in Crop Physiology is 16 years and after 25 years journals will be obsolete. Journal rank list is prepared based the frequency of appearance in the citations of doctoral dissertations. Plant Physiology & Crop Science of USA are ranked first. Agronomy journal of USA and Indian Journal of plant physiology ranked second. 10. CONCLUSIONS Citation analysis of dissertations and assignments of students will help to know the information seeking behavior of students. The data is very helpful in making decision in collection management of the library. The obsolete literature can be weeded to make space for recent required literature. Journal ranking based on the citations in dissertations can be considered in subscription of journals for the library. The growing rate of information resources and limited budget, Librarian must be selective for information resources which are useful and needed for his/her user community. The citation analysis is very helpful tool in making decisions in selecting or rejecting information resources for the library. The present study is an attempt to seek the information need of the Crop Physiology researchers in University of Agricultural Sciences Dharwad. REFERENCES [1] Amudhavalli (A). Impact of Electronic Publishing on collection development. DESIDOC Bulletin of Information Technology. 17,1;1997, 7-10. [2] Bandyopadhyay (Amit Kumar). Citation analysis of Doctoral dissertation in Mathematics using dbase III+. Ann. Lib. Sc. Doc. 43, 3; 1996, Sept; 81-107. [3] Banateppanvar, Koteppa., Biradar, B.S., and Kannappanavar B.U. (2013) Citation analysis of doctoral theses in botany submitted to Kuvempu University, India: a case study; Collection Building; 2, 1 [4] Bhat, (S.V.R) & Sampath Kumar,( B.T). Web citation behavior in scholarly Electronic journals in the field of library and information science.2008 retrieved October 28, 2008, from Webology WebSite [5] Deshmukh, Prashant P. Citations in Annals of Library and Information Studies from 1997-2010: A study. Annals Lib. Inf. Studies [6] Gooden (A.M). Citation Analysis of Chemistry Doctoral Dissertations: An Ohio State University Case Study. Issues in Science and Technology Librarianship no. 32 (Fall); 2001 [7] Zipp ( L.S). Theses and Dissertation Citations As Indicators of Faculty Research Use of University Library Journal Collections. Library Resources & Technical Services;40, ;1996; 335 42. [8] Dr. Bhupinder Singh, Dr. S K Bawa, Dr. Amandeep Singh, Contribution of Indian Authors in Web of Science: Bibliometric Analysis of Arts & Humanities Citation Index (A&HCI). International Journal of Library & Information Science, 6 (5), 2017, pp. 10 16. [9] Muhammad Yusuf MLS and Binta L. Farouk Ph.D, Awareness, Access and Use of Academic Databases by Faculty Members: A Case Study of Bayero University library. International Journal of Library & Information Science, 6(3), 2017, pp.13 26. http://www.iaeme.com/ijlis/index.asp 112 editor@iaeme.com