BSc MSc (Waikato), PhD (Lincoln)
Research interests & activities
- Forage plant root systems, with a focus on nutrient and water acquisition
- Trifolium interspecific hybrids
- Improving the nutrient and water use efficiency of forage plants, particularly the development of legumes tolerant of low soil phosphorus
- Drought resistance, and the physiological effects of drought, in pasture legumes
- Characterisation of novel forage germplasm
- New Zealand Grassland Association
- New Zealand Society of Plant Biologists
Crush, J.R., Ouyang, L., Nichols, S.N. (2015). Root morphology and architecture, and internal phosphate use efficiency, in related white clover cultivars of different age. New Zealand Journal of Agricultural Research, in press
Nichols, S.N, & Crush, J.R. (2015). Phosphate response of Trifolium uniflorum, T. repens and some T. repens Ã— T. uniflorum hybrids. Crop and Pasture Science, in press
Nichols, S.N., Hofmann, R.W., Williams, W.M. (2014). Drought resistance of Trifolium repens Ã— Trifolium uniflorum interspecific hybrids. Crop and Pasture Science, 65, 911-921.
Simpson, R.J., Richardson, A.E., Nichols, S.N., Crush, J.R. (2014). Pasture plants and soil fertility management to improve the efficiency of phosphorus fertiliser use in temperate grassland systems. Crop and Pasture Science, 65, 556-575.
Nichols, S.N., Crush, J.R., Ouyang, L. (2014). Phosphate responses of some Trifolium repens Ã— T. uniflorum interspecific hybrids grown in soil. Crop and Pasture Science, 65, 382-387.
Nichols, S.N., Hofmann, R.W., Williams, W.M., Crush, J.R. (2014). Nutrient responses and macronutrient composition of some Trifolium repens Ã— Trifolium uniflorum interspecific hybrids. Crop and Pasture Science, 65, 370-381.
Nichols, S.N., Hofmann, R.W., Williams, W.M. (2014). The effect of interspecific hybridisation with Trifolium uniflorum on key white clover characteristics. Field Crops Research, 161, 107-117.
Barrett, B.A., Faville, M.J., Nichols, S.N., Simpson, W.R., Bryan, G.T., Conner, A.J. (2014). Breaking through the feed barrier: options for improving forage genetics. In J. Roche (Ed.), Proceedings of the 6th Australasian Dairy Science Symposium (pp 217-228).
Nichols, S.N., & Crush, J.R. (2014). Novel approaches to improving growth of pasture legumes at low phosphorus levels. Proceedings of the New Zealand Grassland Association, 76, 197-201.
Nichols, S.N., Hofmann, R.W., Verry, I.M., Williams, W.M. (2013). Improved drought stress tolerance of white clover through hybridisation with Trifolium uniflorum L. Proceedings of the 22nd International Grassland Congress. (pp 115-117).
Williams, W.M., & Nichols, S.N. (2011). Trifolium. In C. Kole (ed.) Wild crop relatives: genomic and breeding resources, legume crops and forages (pp 249-272). Berlin Heidelberg: Springer-Verlag.
Crush, J.R., Nichols, S.N., Ouyang, L. (2010). Adventitious root mass distribution in progeny of four perennial ryegrass (Lolium perenne L.) groups selected for root shape. New Zealand Journal of Agricultural Research, 53, 193.200.
Crush, J.R., & Nichols, S.N. (2010). Progress towards forage plant root systems for sustainable dairying. Proceedings of the 4th Australasian Dairy Science Symposium (pp 50-52).
Crush, J.R., Nichols, S.N, Easton, H.S., Ouyang, L., Hume, D.E. (2009). Comparisons between wild populations and bred perennial ryegrasses for root growth and root/shoot partitioning. New Zealand Journal of Agricultural Research, 52, 161-169.
Jahufer, M.Z.Z., Nichols, S.N., Crush, J.R., Ouyang, L., Dunn, A., Ford, J.L., Care, D.A., Griffiths, A.G., Jones, C.S. (2008). Genotypic variation for root trait morphology among progeny in a white clover mapping population grown in sand. Crop Science, 48, 487-494.
Crush, J.R., Briggs, L.R., Sprosen, J., Nichols, S.N. (2008). Effect of irrigation with microcystin-contaminated water on growth and microcystin content of lettuce, rape, ryegrass and clover. Environmental Toxicology, 23, 246-252.
Nichols, S.N., Crush, J.R., Woodfield, D.R. (2007). Effects of inbreeding on nodal root system morphology and architecture of white clover (Trifolium repens L.). Euphytica, 156, 365-373.