| The ecology of arbuscular mycorrhizal fungi A Willis, BF Rodrigues, PJC Harris Critical Reviews in Plant Sciences 32 (1), 1-20, 2013 | 304 | 2013 |
| Abiotic stresses: plant resistance through breeding and molecular approaches M Ashraf, P Harris CRC press, 2005 | 245 | 2005 |
| Salt tolerance in selected vegetable crops M Shahbaz, M Ashraf, F Al-Qurainy, PJC Harris Critical reviews in plant sciences 31 (4), 303-320, 2012 | 159 | 2012 |
| Effects of soil phosphorus on spore germination and hyphal growth of arbuscular mycorrhizal fungi JCC De Miranda, PJ Harris New Phytologist 128 (1), 103-108, 1994 | 127 | 1994 |
| Effects of soil and plant phosphorus concentrations on vesicular‐arbuscular mycorrhiza in sorghum plants JCC De Miranda, PJ Harris, A Wild New Phytologist 112 (3), 405-410, 1989 | 106 | 1989 |
| Stress environments and their impact on crop production M Ashraf, P Harris Abiotic Stresses, 25-40, 2005 | 75 | 2005 |
| The effect of soil phosphorus on the external mycelium growth of arbuscular mycorrhizal fungi during the early stages of mycorrhiza formation JCC De Miranda, PJ Harris Plant and Soil 166, 271-280, 1994 | 69 | 1994 |
| The relationship between ions, vigour and salinity tolerance of Acacia seeds S Rehman, PJC Harris, WF Bourne, J Wilkin Plant and Soil 220, 229-233, 2000 | 66 | 2000 |
| Analysis of the relationships between species of the genus Prosopis revealed by the use of molecular markers L Ramírez, A de La Vega, N Razkin, V Luna, PJC Harris Agronomie 19 (1), 31-43, 1999 | 42 | 1999 |
| A fluorimetric method for measuring the activity of soil enzymes PR Darrah, PJ Harris Plant and Soil 92, 81-88, 1986 | 35 | 1986 |
| Plant regeneration from callus and explants of Sesbania spp. Z Yan-Xiu, Y Dun-Yi, PJC Harris Plant cell, tissue and organ culture 34, 253-260, 1993 | 24 | 1993 |
| Problems and potentials of Prosopis. PJC Harris, NM Pasiecznik, M Bradbury, L Ramirez | 17 | 1998 |
| Plant regeneration from protoplasts isolated from cotyledons of Sesbania bispinosa Z Yan-Xiu, PJC Harris, Y Dun-Yi Plant cell, tissue and organ culture 40, 119-123, 1995 | 11 | 1995 |
| & Maldonado, LJ (2001) NM Pasiecznik, P Felker, PJ Harris, L Harsh, G Cruz, JC Tewari The Prosopis juliflora-Prosopis pallida Complex: a Monograph. HDRA, 0 | 11 | |
| Identifying tropical Prosopis species: a field guide (p. 29) NM Pasiecznik, PJ Harris, SJ Smith Coventry: HDRA Publishing, 2004 | 10 | 2004 |
| Skills gaps in organic agriculture and SWOT analysis in higher educational institutions (HEIs) in Anglophone West Africa IOO Aiyelaagbe, PJC Harris, VIO Olowe Organic agriculture 6, 109-118, 2016 | 9 | 2016 |
| The P. juliflora–P. pallida complex: A monograph NM Pasiecznik, P Felker, P Harris, L Harsh, G Cruz, T JC, K Cadoret, ... HYDRA Coventry UK, 2001 | 8 | 2001 |
| Seed priming: Factors affecting efficacy IA Eshkab, PJC Harris International Review of Basic and Applied Sciences 8 (4), 31-52, 2020 | 7 | 2020 |
| Organic agriculture: business is booming in Nigeria I Aiyelaagbe, P Harris, J Atungwu, V Olowe Chronica Horticulturae-Subscription 50 (3), 28, 2010 | 5 | 2010 |
| ‘Green’Development on the Cape Verde Islands C Sandys-Winsch, PJC Harris Environmental conservation 21 (3), 225-230, 1994 | 5 | 1994 |
