P. S. Hammes
- Plant Science top 5%
- Food Science top 2%
- Soil Science top 5%
- Agronomy and Crop Science top 5%
- Molecular Biology
- Co-authors
- T. TekalignWondimu BayuP.J. RobbertseN.F.G. RethmanGetachew AlemuPhilip NelGodfrey Elijah ZhararePuffy Soundy
- Topics
- Potato Plant Research (17 papers)Crop Yield and Soil Fertility (14 papers)Plant Physiology and Cultivation Studies (9 papers)
- Partner nations
- South AfricaEthiopiaZimbabwe
In The Last Decade
P. S. Hammes
58 papers receiving 923 citations
Peers
Comparison fields: 5 of 77
- Plant Science 737
- Food Science 386
- Soil Science 219
- Agronomy and Crop Science 187
- Molecular Biology 110
Countries citing papers authored by P. S. Hammes
This map shows the geographic impact of P. S. Hammes'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 P. S. Hammes with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. S. Hammes more than expected).
Fields of papers citing papers by P. S. Hammes
This network shows the impact of papers produced by P. S. Hammes. 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 P. S. Hammes. The network helps show where P. S. Hammes may publish in the future.
Co-authorship network of co-authors of P. S. Hammes
This figure shows the co-authorship network connecting the top 25 collaborators of P. S. Hammes. A scholar is included among the top collaborators of P. S. Hammes 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 P. S. Hammes. P. S. Hammes is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 2 | |
| 2 | Effect of cultivars and planting methods on yield and yield components of sweet potatoIpomoea batatas L 168 | 1 |
| 3 | 35 | |
| 4 | 11 | |
| 5 | 95 | |
| 6 | 46 | |
| 7 | 96 | |
| 8 | 17 | |
| 9 | 17 | |
| 10 | 11 | |
| 11 | 14 | |
| 12 | 11 | |
| 13 | 1 | |
| 14 | 4 | |
| 15 | EFFECTS OF PHOTOPERIOD AND TEMPERATURE ON GRAIN YIELD, GRAIN NUMBER, MEAN KERNEL MASS AND GRAIN PROTEIN CONTENT OF VERNALIZED AND UNVERNALIZED WHEAT (TRITICUM AESTIVUM L.) | 3 |
| 16 | 27 | |
| 17 | Effect of cultivar and soil fertility on grain yield, yield components and grain nitrogen content of wheat | 2 |
| 18 | 13 | |
| 19 | 3 | |
| 20 | 0 |
About P. S. Hammes
P. S. Hammes is a scholar working on Agronomy and Crop Science, Plant Science and Food Science, having authored 62 papers that have together received 1.1k indexed citations. Recurring topics across this work include Potato Plant Research (17 papers), Crop Yield and Soil Fertility (14 papers) and Plant Physiology and Cultivation Studies (9 papers). The work is most often cited by research in Soil Science (219 citations), Food Science (386 citations) and Plant Science (737 citations). P. S. Hammes has collaborated with scholars based in South Africa, Ethiopia and Zimbabwe. Frequent co-authors include T. Tekalign, Wondimu Bayu, P.J. Robbertse, N.F.G. Rethman, Getachew Alemu, Philip Nel, Godfrey Elijah Zharare, Puffy Soundy, J. M. Steyn and Paul H. Fourie. Their work appears in journals such as Field Crops Research, Scientia Horticulturae and Plant Growth Regulation.
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.