Effect of artificially induced stress conditions on the growth of the medicinal plant Hypoxis hemerocallidea

McAlister, B.G.; Staden, J. Van

doi:10.1016/s0254-6299(15)30484-1

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…K and Ca have a strong antagonistic relationship (Nguyen et al, 2017); however, in this study, no significant antagonistic relationship between K and Ca was found. Increased Ca and B accumulation in the corm at the lowest K concentration might be due to the genetic ability of African potato to accumulate nutrients in the corm, even at low soil fertility levels (McAlister and van Staden, 1995).…”

Section: Discussionmentioning

confidence: 99%

Potassium Fertigation to Enhance the Performance of Hypoxis hemerocallidea

Akakpo

Sedibe

Zaid

et al. 2021

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Potassium (K) is an essential nutrient in plant metabolism, ionic balance, and stress resistance. In this study, the effects of K on agronomic attributes and on mineral and primary metabolite content in African potato were determined. K was administered hydroponically at four concentrations (4.00, 6.00, 8.00, and 10.00 meq·L−1) using Steiner’s universal nutrient solution. Chlorophyll content (CHL), leaf area (LA), fresh corm mass (FCM), number of roots (NR), root fresh weight (RFM), and root dry mass (RDM) were measured 18, 32, and 40 weeks after transplanting. Mineral analysis data were collected at 18 weeks, and primary metabolite data were collected at 32 weeks. Significant effects of K were observed after 18 weeks, and all test concentrations had a positive effect on yield. Calcium and boron significantly accumulated in the corm at 4.00 meq·L−1 K. Alanine and malic acid were the only metabolites affected by K concentrations. More minerals accumulated in the corm at 4.00 meq·L−1 K, whereas at 10.00 meq·L−1 K, more minerals clustered in the leaf. K applied at 4.00 meq·L−1 is recommended when growing African potato using a nutrient solution to improve corm mineral and metabolite accumulation.

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Section: Discussionmentioning

confidence: 99%

Potassium Fertigation to Enhance the Performance of Hypoxis hemerocallidea

Akakpo

Sedibe

Zaid

et al. 2021

horts

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“…Application of chemical fertilisers and irrigation improved the concentrations of the potent volatile compounds in Siphonochilus aethiopicus. 70 A study by McAlister and Van Staden 71 showed that high levels of nitrogen, phosphorus, and potassium are necessary for increasing the biomass of Hypoxis hemerocallidea. However, once the plants are established, the nutrient application can be discontinued to increase the hypoxoside concentrations.…”

Section: Cultivation Effects On the Medicinal Value Of Medicinal Plantsmentioning

confidence: 99%

Medicinal plant cultivation for sustainable use and commercialisation of high-value crops

et al. 2022

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Many traditional healing systems are based on natural biological resources, and there is a general shift in most parts of the world towards natural medicine, with direct implications on the demand and supply of medicinal plants. This review highlights the economic importance of medicinal plants, their contribution to healthcare systems, and potential opportunities for rural economic development through cultivation. A systematic literature review with specific search terms related to medicinal plants was used to collect scientific and non-scientific information from peer-reviewed literature and grey literature databases. The findings indicate that trade in medicinal plants is increasing, and although they are considered minor crops compared to major food crops, their value is among the highest in the list of traded plants globally. The trade also serves as a revenue source for many rural livelihoods, with women playing a significant role. Medicinal plants contribute to primary health care in many developing countries, and they are also an essential source of modern drug discovery. Cultivation of medicinal plants offers emerging rural farmers an opportunity to grow these plants as new and alternative crops, thus reducing unsustainable wild harvesting and competition with established commercial farmers who mostly focus on food crops. Furthermore, medicinal plant cultivation should be promoted as one of the options for local economic development and sustainability through job creation, the revival of the rural economy, and income generation for small businesses, such as the transport businesses, involved in the value chain. Land accessibility, financial resources, and direct market access for rural communities can elevate their contribution to the industry. Formalisation of the lower levels of the medicinal plant trade is also recommended.

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“…Care is also needed as H. hemerocallidea plants to which herbicides were not applied grew better and had a higher hypoxoside content, compared to herbicide-treated plants [91]. Competition with weeds could have led to plant stress and thus an increase in secondary metabolite synthesis.…”

Section: Propagation and Cultivation Of Hypoxis Hemerocallideamentioning

confidence: 99%

“…Competition with weeds could have led to plant stress and thus an increase in secondary metabolite synthesis. It seems that high levels of nutrients (N, P, and K) are only required initially to produce a suitable H. hemerocallidea biomass and after plant establishment, fertilizer treatment can be discontinued [91]. Although H. hemerocallidea prefers poor soils with little nutrients, site selection for cultivation of the species is essential as exposure to cadmium (Cd) and aluminium (Al) significantly decreased the accumulation of hypoxoside [86].…”

Section: Propagation and Cultivation Of Hypoxis Hemerocallideamentioning

confidence: 99%

Diversity and Conservation through Cultivation of Hypoxis in Africa—A Case Study of Hypoxis hemerocallidea

et al. 2020

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Africa has the largest diversity of the genus Hypoxis, accounting for 61% of the current globally accepted taxa within the genus, including some endemic species. Using Hypoxis hemerocallidea as a case study, this review addresses the conservation concerns arising from the unsustainable, wild harvesting of a number of Hypoxis species. Hypoxis hemerocallidea is one of the wild-harvested, economically important, indigenous medicinal plants of southern Africa, with potential in natural product and drug development. There are several products made from the species, including capsules, tinctures, tonics and creams that are available in the market. The use of H. hemerocallidea as a “cure-all” medicine puts an important harvesting pressure on the species. Unsustainable harvesting causes a continuing decline of its populations and it is therefore of high priority for conservation, including a strong case to cultivate the species. Reviewing the current knowledge and gaps on cultivation of H. hemerocallidea, we suggest the creation of a platform for linking all the stakeholders in the industry.

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Effect of artificially induced stress conditions on the growth of the medicinal plant Hypoxis hemerocallidea

Cited by 5 publications

References 2 publications

Potassium Fertigation to Enhance the Performance of Hypoxis hemerocallidea

Potassium Fertigation to Enhance the Performance of Hypoxis hemerocallidea

Medicinal plant cultivation for sustainable use and commercialisation of high-value crops

Diversity and Conservation through Cultivation of Hypoxis in Africa—A Case Study of Hypoxis hemerocallidea

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