Journal Article: Improved agronomic biofortification of sweetcorn achieved using foliar rather than soil Zn applications
Cheah, Zhong Xiang, Harper, Stephen M., Hare, Tim J. O’, Kopittke, Peter M. and Bell, Michael J. (2022). Improved agronomic biofortification of sweetcorn achieved using foliar rather than soil Zn applications. Cereal Chemistry, 99 (4), 819-829. doi: 10.1002/cche.10539
Journal Article: A rapid and simplified methodology for the extraction and quantification of allicin in garlic
Nguyen, B.T., Hong, H.T., O’Hare, T.J., Wehr, J.B., Menzies, N.W. and Harper, S.M. (2021). A rapid and simplified methodology for the extraction and quantification of allicin in garlic. Journal of Food Composition and Analysis, 104 104114, 1-7. doi: 10.1016/j.jfca.2021.104114
Conference Publication: Excess nitrogen application reduces root yield of Achyranthes bidentata
Nguyen, Binh, Dang, Ha, Pham, Phuong, Chu, My, Nguyen, Duyen, Phan, Hien, Wehr, Bernhard and Harper, Stephen (2021). Excess nitrogen application reduces root yield of Achyranthes bidentata. The Soil Science Australia and the New Zealand Society of Soil Science Joint Conference, Cairns, QLD Australia, 27 June - 2 July 2021.
Crop health and nutrient management of shallot-chilli-rice cropping systems in coastal Indonesia
(2020–2025) Australian Centre for International Agricultural Research
Virus-infected garlic in Australia and factors affecting disease epidemiology
Doctor Philosophy
Evaluation of nutritional, genotypic and environmental factors affecting the yield and quality of garlic
Doctor Philosophy
An evaluation of soil health in intensive production systems under contrasting nutrient management
Doctor Philosophy
Cheah, Zhong Xiang, Harper, Stephen M., Hare, Tim J. O’, Kopittke, Peter M. and Bell, Michael J. (2022). Improved agronomic biofortification of sweetcorn achieved using foliar rather than soil Zn applications. Cereal Chemistry, 99 (4), 819-829. doi: 10.1002/cche.10539
A rapid and simplified methodology for the extraction and quantification of allicin in garlic
Nguyen, B.T., Hong, H.T., O’Hare, T.J., Wehr, J.B., Menzies, N.W. and Harper, S.M. (2021). A rapid and simplified methodology for the extraction and quantification of allicin in garlic. Journal of Food Composition and Analysis, 104 104114, 1-7. doi: 10.1016/j.jfca.2021.104114
Detection and distribution of viruses infecting garlic crops in Australia
Cremer, Julia, Campbell, Paul, Steele, Visnja, Persley, Denis, Thomas, John, Harper, Stephen and Gambley, Cherie (2021). Detection and distribution of viruses infecting garlic crops in Australia. Plants, 10 (5) 1013, 1-14. doi: 10.3390/plants10051013
First report of garlic virus E in Australia
Nurulita, Sari, Geering, Andrew D. W., Crew, Kathleen S., Harper, Stephen and Thomas, John E. (2020). First report of garlic virus E in Australia. Australasian Plant Disease Notes, 15 (1) 32. doi: 10.1007/s13314-020-00400-0
Zinc biofortification of immature maize and sweetcorn (Zea mays L.) kernels for human health
Cheah, Zhong Xiang, O’Hare, Tim J., Harper, Stephen M., Kochanek, Jitka and Bell, Michael J. (2020). Zinc biofortification of immature maize and sweetcorn (Zea mays L.) kernels for human health. Scientia Horticulturae, 272 109559. doi: 10.1016/j.scienta.2020.109559
Cheah, Zhong Xiang, O'Hare, Tim J., Harper, Stephen M. and Bell, Michael J. (2020). Variation in sweetcorn kernel Zn concentration a reflection of source-sink dynamics influenced by kernel number. Journal of Experimental Botany, 71 (16), 4985-4992. doi: 10.1093/jxb/eraa244
Salas, Rosario A., Godoy, Reyda Mae R., Salas, Felix M., Menzies, Neal, Harper, Stephen and Asio, Victor B. (2020). Yield and postharvest qualities of two genotypes of eggplant (Solanum melongena l.) applied with different levels of chicken dung. EnvironmentAsia, 13 (Special Issue 1), 81-86. doi: 10.14456/ea.2020.25
Cheah, Zhong Xiang, Kopittke, Peter M., Harper, Stephen M., Meyer, Gregor, O'Hare, Tim J. and Bell, Michael J. (2019). Speciation and accumulation of Zn in sweetcorn kernels for genetic and agronomic biofortification programs. Planta, 250 (1), 219-227. doi: 10.1007/s00425-019-03162-x
Cheah, Zhong Xiang, Kopittke, Peter M., Harper, Stephen M., O’Hare, Tim J., Wang, Peng, Paterson, David J., de Jonge, Martin D. and Bell, Michael J. (2019). In situ analyses of inorganic nutrient distribution in sweetcorn and maize kernels using synchrotron-based X-ray fluorescence microscopy. Annals of Botany, 123 (3), 543-556. doi: 10.1093/aob/mcy189
Trace metal contamination during grinding of plant samples
Bich, Luong Bui, My, Hanh Phung Thi, Dinh, Rinh Pham, Minh, Trang Pham, Trong, Thang Do, Harper, Stephen, Wuhrer, Richard, Huang, Qingtao, George, Laurel, Holford, Paul, Zhao, Chen Chen, Mitchell, Christopher and Milham, Paul (2018). Trace metal contamination during grinding of plant samples. Communications in Soil Science and Plant Analysis, 50 (1), 102-107. doi: 10.1080/00103624.2018.1554671
Growth and yield response of glasshouse- and field-grown sweetpotato to nitrogen supply
Taranet, Prapa, Harper, Stephen, Kirchhof, Gunnar, Fujinuma, Ryosuke and Menzies, Neal (2017). Growth and yield response of glasshouse- and field-grown sweetpotato to nitrogen supply. Nutrient Cycling in Agroecosystems, 108 (3), 309-321. doi: 10.1007/s10705-017-9858-6
Vaughan, Sarah M., Dalal, Ram C., Harper, Stephen M. and Menzies, Neal W. (2011). Effect of fresh green waste and green waste compost on mineral nitrogen, nitrous oxide and carbon dioxide from a Vertisol. Waste Management, 31 (8), 1720-1728. doi: 10.1016/j.wasman.2011.03.019
Harper, S., Kerven, G. L., Edwards, D. G. and Ostatek-Boczynski, Z. (2000). Characterisation of fulvic and humic acids from leaves of Eucalyptus camaldulensis and from decomposed hay. Soil Biology and Biochemistry, 32 (10), 1331-1336. doi: 10.1016/S0038-0717(00)00021-3
Excess nitrogen application reduces root yield of Achyranthes bidentata
Nguyen, Binh, Dang, Ha, Pham, Phuong, Chu, My, Nguyen, Duyen, Phan, Hien, Wehr, Bernhard and Harper, Stephen (2021). Excess nitrogen application reduces root yield of Achyranthes bidentata. The Soil Science Australia and the New Zealand Society of Soil Science Joint Conference, Cairns, QLD Australia, 27 June - 2 July 2021.
Agarwal, Rimjhim, Hong, Hung T., Hayward, Alice, Harper, Stephen, Mitter, Neena and O’Hare, Tim J. (2020). Carotenoid profiling of orange-coloured capsicums: In search of high-zeaxanthin varieties for eye health. 1st International Electronic Conference on Food Science and Functional Foods, Online, 10–25 November, 2020. Basel, Switzerland: MDPI. doi: 10.3390/foods_2020-07717
Agarwal, Rimjhim, Trieu, Hung Hong, Cave, Robyn, Harper, Stephen and O’Hare, Tim (2020). Orange capsicums and chillies as a potential source of dietary zeaxanthin, an important macular carotenoid for eye health. Third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI AG. doi: 10.3390/proceedings2019036161
The effect of heat treatments and drip line placements on the yield and quality of garlic
Djanie, Alina, Harper, Stephen and Cave, Robyn (2020). The effect of heat treatments and drip line placements on the yield and quality of garlic. Third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, QLD, Australia, 11 - 13 November 2019.
Allicin and yield: are they friends or enemies?
Nguyen, Binh, Wehr, Bernhard, O'Hare, Timothy, Hong, Hung Trieu, Menzies, Neal and Harper, Stephen (2019). Allicin and yield: are they friends or enemies?. In: TropAg2019, Brisbane, QLD, Australia, (). 11-13 November 2019.
The relationship between bulb yield and allicin concentration in garlic varieties
Nguyen, Binh, Wehr, Bernhard, O’Hare, Timothy, Hong, Hung, Menzies, Neal and Harper, Stephen (2019). The relationship between bulb yield and allicin concentration in garlic varieties. Third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, QLD, Australia, 11 - 13 November 2019. Basel, Switzerland: M D P I AG. doi: 10.3390/proceedings2019036028
Influence of rootstock on photosynthetic activity and yield of Capsicum annuum 'Warlock'
Cave, Robyn, Hall, Zara, Qin, Malin and Harper, Stephen (2016). Influence of rootstock on photosynthetic activity and yield of Capsicum annuum 'Warlock'. International Symposium on Tropical and Temperate Horticulture, Cairns, Australia, 20-25 November 2016.
Nutrient budgeting of shallot (Allium cepa L. Aggregatum group) in Central and East Java, Indonesia
Somala, M. U. A., Wibowo, A., Subandiyah, S. and Harper, S. (2016). Nutrient budgeting of shallot (Allium cepa L. Aggregatum group) in Central and East Java, Indonesia. VII International Symposium on Edible Alliaceae, Nigde, Turkey , 21 - 25 May 2015. Leuven, Belgium: International Society for Horticultural Science. doi: 10.17660/ActaHortic.2016.1143.45
Wibowo, A., Kaeni, E., Toekidjo, T., Subandiyah, S., Sulistyaningsih, E. and Harper, S. (2016). Responses of four shallot (Allium cepa L. Aggregatum Group) cultivars to moler disease (Fusarium spp.) after bulb treatment. VII International Symposium on Edible Alliaceae, Nigde, Turkey, 21 - 25 May 2015. Leuven, Belgium: International Society for Horticultural Science. doi: 10.17660/ActaHortic.2016.1143.11
Selection for root morphological traits improves the growth of grafted bell pepper
Mohd Nor, N.H., Fujinuma, R., Menzies, N.W., Harper, S. and McGrath, D. (2016). Selection for root morphological traits improves the growth of grafted bell pepper. XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in Horticulture, Brisbane, QLD, Australia, August 17, 2014. Leuven, Belgium: International Society for Horticultural Science. doi: 10.17660/ActaHortic.2016.1127.33
Vaughan, Sarah M., Dalal, Ram, Harper, Stephen and Menzies, Neal (2010). Reduction of soil nitrogen losses from a Vertisol with organic waste amendments under subtropical conditions. 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010. Brisbane, Australia: International Union of Soil Sciences.
Crop health and nutrient management of shallot-chilli-rice cropping systems in coastal Indonesia
(2020–2025) Australian Centre for International Agricultural Research
Virus-infected garlic in Australia and factors affecting disease epidemiology
Doctor Philosophy — Associate Advisor
Other advisors:
Evaluation of nutritional, genotypic and environmental factors affecting the yield and quality of garlic
Doctor Philosophy — Associate Advisor
Other advisors:
An evaluation of soil health in intensive production systems under contrasting nutrient management
Doctor Philosophy — Associate Advisor
Other advisors:
Genotypic responses of capsicum to copper toxicity
Doctor Philosophy — Associate Advisor
Other advisors:
Identification of genetic variants in orange-pigmented capsicum and chillli of the Capsicum annuum, C. chinense, and C. baccatum species.
Doctor Philosophy — Associate Advisor
Other advisors:
Factors controlling nutrient use efficiency across a range of capsicum germplasm
Doctor Philosophy — Associate Advisor
Other advisors:
Genetic and agronomic biofortification of zinc in sweetcorn
(2020) Doctor Philosophy — Associate Advisor
Other advisors:
The Effects of Low pH and Aluminium Toxicity on Pythium Damping-off in Cucumber
(2020) Master Philosophy — Associate Advisor
Other advisors:
Nitrogen use efficiency of tomato: Role of root system morphological traits
(2013) Master Philosophy — Associate Advisor
Other advisors:
(2013) Doctor Philosophy — Associate Advisor
Other advisors: