Response to various water regimes of the physiological aspects, nutritional water productivity, and phytochemical composition of bush tea (Athrixia phylicoides DC.) grown under a protected environment

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dc.contributor.authorRumani, Muneiwa
dc.contributor.authorMabhaudhi, Tafadzwanashe
dc.contributor.authorRamphinwa, Maanea Lonia
dc.contributor.authorRamabulana, Anza-Tshilidzi
dc.contributor.authorMadala, Ntakadzeni Edwin
dc.contributor.authorMagwaza, Lembe Samukelo
dc.contributor.authorMudau, Fhatuwani Nixwell
dc.date.accessioned2024-06-20T14:53:06Z
dc.date.available2024-06-20T14:53:06Z
dc.date.issued2024-06-04
dc.description.abstractThe influence of water regimes on plants is crucial for integrating bush tea (Athrixia phylicoides DC.) into strategies in Sub-Saharan Africa to tackle food and nutritional insecurity by considering physiological aspects, nutritional yield, nutritional water productivity, and metabolite composition. The objective of the study was to determine the physiological aspects, including leaf gas exchange and chlorophyll fluorescence, nutritional yield, nutritional water productivity, and metabolite composition of bush tea under varying water regimes. The tunnel experiment was laid out in a randomized complete block design (RCBD) with treatments consisting of three water regimes: 100% of crop water requirement (ETa), 30% of ETa, and a control (no irrigation), all replicated three times. The morphological aspects were recorded on a weekly basis. However, yield, nutrient content, nutritional water productivity (NWP), and phytochemical composition were determined at harvest. The phytochemical analysis by liquid chromatography mass spectrometry (LC-MS), coupled with visualization of the detected chemical spaces through molecular networking, indicated Athrixia phylicoides DC. to be rich in various bioactive compound derivatives, including methyl chlorogenate, flavonoids, tartaric acid, caffeoylquinic acid, and glutinane. The results showed that 30% ETa enhanced plant growth, nutrient content, and nutritional water productivity compared to other water treatments. Nevertheless, 100% ETa yielded more (95.62 kg ha−1) than 30% ETa (60.61 kg ha−1) and control (12.12 kg ha−1). The accumulation of chlorogenic acids was higher under 30% ETa compared to 100% ETa and control. Therefore, this study is the first to determine the accumulation of various bioactive compounds in bush tea leaf extracts under varying water regimes. This confirms that in areas with low water availability, bush tea is well adapted for production without limiting nutrients.en_UK
dc.identifier.citationRumani M, Mabhaudhi T, Ramphinwa ML, et al., (2024) Response to various water regimes of the physiological aspects, nutritional water productivity, and phytochemical composition of bush tea (Athrixia phylicoides DC.) grown under a protected environment. Horticulturae, Volume 10, Issue 6, June 2024, Article number 590en_UK
dc.identifier.issn2311-7524
dc.identifier.urihttps://doi.org/10.3390/horticulturae10060590
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22543
dc.language.isoen_UKen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectherbal teaen_UK
dc.subjectwater treatmentsen_UK
dc.subjectwater stressen_UK
dc.subjectnutrient contenten_UK
dc.subjectwater-use efficiencyen_UK
dc.subjectgrowth developmenten_UK
dc.subjectyielden_UK
dc.subjectmolecular networken_UK
dc.titleResponse to various water regimes of the physiological aspects, nutritional water productivity, and phytochemical composition of bush tea (Athrixia phylicoides DC.) grown under a protected environmenten_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-05-30

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