Best Plant Science and Agronomy Universities in Japan 2023

The 2nd edition of ranking of the best universities in the arena of Plant Science and Agronomy was created using data consolidated from a wide range of data sources including OpenAlex and CrossRef. The bibliometric data for evaluating the citation-based metrics were acquired on 21-12-2022. Position in the ranking is based on a sum of D-indexes (Discipline H-index) of all ranking scholar’s affiliated with a given institution. D-index takes into account only publications and citation data for an examined discipline.
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The scope of our Plant Science and Agronomy research
Our best universities ranking is a reliable lineup of leading scientists from the field of Plant Science and Agronomy , based on a thorough analysis of 166,880 scholars discovered from multiple bibliometric data sources. For the area of Plant Science and Agronomy, over 5066 scientists were investigated.

What is D-index acceptance threshold for Plant Science and Agronomy
The D-index threshold for approving a scholar to be considered is established at 30 if most of their publications are in the area of Plant Science and Agronomy. The approval requirements for scholars to be considered into the ranking of top scientists are based on the D-index, ratio of the contributions made within the specific field of study plus the awards and achievements of the scientists. The D-index threshold for including top scientists is set as an increment of 10 depending on the overall number of researchers projected for each area od study whilst making sure that the top 1% of leading scientists are added into the ranking. There should be a proximity of 30% or less between a scholar’s general H-index and their D-index.

Extra verification rules
Since our main aim is to guarantee that only credible scholars are listed in our ranking we believe that numbers are never supposed to be a complete measure to evaluate the contributions of scholars. Because of that we manually verify each profile and cross-correlate it against publications in a wide range of credible sources. Although it’s not a element contributing to a scientist’s position in the ranking, the quantity of documents published in major journals and conference proceedings should form a valuable secondary indication of their contribution to research in a given discipline. Position in the ranking is determined by each researcher’s D-index with the help of information gathered from OpenAlex and CrossRef, which are the most credible and well-known bibliometric databases of this kind accessible to the scientific community. A comprehensive explanation of our research procedures can be found on our methodology page.

Our goal
Our mission is to inspire scholars, entrepreneurs and politicians worldwide to explore where top experts are heading and to provide an opportunity for the entire scientific community to discover who the leading experts in specific disciplines, in different countries, or even within research institutions are.
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Key findings for Plant Science and Agronomy
With 27 scientific affiliations Japan ranks in spot 6 in the world.

As far as scientific affiliations are concerned, the affiliation with the highest number of top scientists in Japan is Tohoku University with 10 scientists affiliated with it being features in our Plant Science and Agronomy ranking. It is followed by Kyoto University with 8 scientists and University of Tokyo with 7 scholars.

The most prominent scholars in the discipline of Plant Science and Agronomy in Japan are affiliated with Ishikawa Prefectural University, Okayama University, The Graduate University for Advanced Studies, SOKENDAI, Hokkaido University, Utsunomiya University, Kyushu University, National Institute for Basic Biology, University of Tokyo, Tokyo University of Pharmacy and Life Sciences, Nagoya University. Tohoku University is featured as the best university in the Japan in our ranking with a total D-index of its ranking scientists at 468. Ranking on the second place is Kyoto University with a total D-index of 375. The third position is taken by University of Tokyo with a total D-index of 352.

The average total D-index for the top 5% universities is 107 against an average of 107 for all 27 institutions listed in the ranking.

The average number of publications within the area of Plant Science and Agronomy by scientists affiliated with the top 1% of scientists in the ranking is 384 against an average of 384 for all 27 universities.

The average number of citations of scholars affiliated with the top 1% universities is 21528 against an average of 21528 for all 27 universities.

University Details
Σ Publications
Σ D-Index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.
46 World 1 National Scholars 10 1,186 Σ D-index 468
67 World 2 National Scholars 8 1,093 Σ D-index 375
74 World 3 National Scholars 7 1,197 Σ D-index 352
86 World 4 National Scholars 6 1,353 Σ D-index 275
132 World 5 National Scholars 2 462 Σ D-index 185
166 World 6 National Scholars 3 841 Σ D-index 143
199 World 7 National Scholars 3 549 Σ D-index 112
225 World 8 National Scholars 2 392 Σ D-index 96
236 World 9 National Scholars 2 239 Σ D-index 90
243 World 10 National Scholars 1 270 Σ D-index 88
286 World 11 National Scholars 2 228 Σ D-index 71
292 World 12 National Scholars 2 250 Σ D-index 69
309 World 13 National Scholars 1 139 Σ D-index 63
368 World 14 National Scholars 1 108 Σ D-index 44
382 World 15 National Scholars 1 305 Σ D-index 42
397 World 16 National Scholars 1 184 Σ D-index 41
432 World 17 National Scholars 1 167 Σ D-index 38
436 World 18 National Scholars 1 135 Σ D-index 38
453 World 19 National Scholars 1 92 Σ D-index 37
456 World 20 National Scholars 1 178 Σ D-index 36
469 World 21 National Scholars 1 216 Σ D-index 35
478 World 22 National Scholars 1 165 Σ D-index 34
479 World 23 National Scholars 1 148 Σ D-index 34
493 World 24 National Scholars 1 128 Σ D-index 33
495 World 25 National Scholars 1 116 Σ D-index 33
519 World 26 National Scholars 1 183 Σ D-index 30
522 World 27 National Scholars 1 50 Σ D-index 30

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