Total 2,444,186 scientists, country 221, and institutions 24,477 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1

crop physiology
deciduous fruit crops
plant-environment interactions
production systems physiology
crop pomology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
35
0.422
* Total i10 IndexRankings
Ranking Based On Selection: 2

crop physiology
soil-plant relations crop models
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
15
0.254
* Total i10 IndexRankings
Ranking Based On Selection: 3

Crop production
nutrient management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
26
0.684
* Total i10 IndexRankings
Ranking Based On Selection: 4

Crop Physiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
14
0.438
Stuart Tustin
Plant and Food Research, New Zealand
Wellington, New Zealand
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
35
0.422
crop physiology
deciduous fruit crops
plant-environment interactions
production systems physiology
crop pomology
Jeff Reid
Plant and Food Research, New Zealand
Wellington, New Zealand
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
15
0.254
crop physiology
soil-plant relations crop models
Paul R Johnstone
Plant and Food Research, New Zealand
Wellington, New Zealand
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
26
0.684
Crop production
nutrient management
Emmanuel Chakwizira
Plant and Food Research, New Zealand
Wellington, New Zealand
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
14
0.438