New information following the change in COVID-19 alert levels. massey.ac.nz/coronavirus

Elizabeth Nickless

Doctor of Philosophy
Study Completed: 2017
College of Sciences

Citation

Thesis Title
Influential Factors in Nectar Composition and Yield in Leptospermum scoparium

Read article at Massey Research Online: MRO icon

Leptospermum scoparium (mānuka) is the plant nectar source for medically bioactive honey, commercially marketed in New Zealand as UMF honey. Ms Nickless demonstrated that genetic and environmental factors influenced nectar composition and yield in L. scoparium. Her research highlighted the importance of assessing not just nectar composition in deducing cultivar value, but overall nectar yield. She found key genetic and environmental features must be explored when assessing L. scoparium plants within breeding programs, prior to selection for large-scale field production of high UMF mānuka honey. Nectar composition was analysed using high pressure liquid chromatography (HPLC) and compared with quantitative analytical spectroscopy methods. Fourier transform Raman spectroscopy and attenuated total reflectance fourier transform infrared spectroscopy were successful techniques in chemotyping different mānuka cultivars. These practical analytical methods proved valuable in quantification of nectar carbohydrate concentrations and for predicting UMF potential using leaf material from L. scoparium plants

Supervisors
Professor Jason Wargent
Dr Jonathan Stephens
Dr Steven Holroyd
Professor Chris Anderson

Contact us Mon - Fri 8:30am to 4:30pm 0800 MASSEY (+64 6 350 5701) TXT 5222 contact@massey.ac.nz Web chat Staff Alumni News Māori @ Massey