Phenology of honeybush (Cyclopia genistoides and C. subternata) genotypes

Motsa, Mlamuli M.; Slabbert, M.M.; Bester, C.; Ngwenya, Mzabalazo Z.

doi:10.1016/j.sajb.2016.03.005

Cited by 13 publications

(10 citation statements)

References 30 publications

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“…is an indigenous Cape fynbos legume plant with yellow fl owers and a rich honey aroma, from which the common name is derived (Van Wyk & Gorelik, 2017). Generally, spring fl owering occurs between September and October, followed by seed set in November (Motsa et al, 2017). Honeybush, which is a rich source of antioxidants, possesses antimutagenic properties (Marnewick et al, 2000;Kokotkiewicz & Luczkiewicz, 2009;Marnewick, 2009).…”

Section: Introductionmentioning

confidence: 99%

Occurrence and seasonal changes in the population of root-knot nematodes on honeybush (Cyclopia sp.)

2021

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Summary Root-knot nematodes in the genus Meloidogyne are an important group of plant-parasitic nematodes causing severe damage on agricultural crops worldwide. A study was conducted to identify the species of root-knot nematodes causing damage on honeybush monocultures and to assess the seasonal variations in the nematode population. Soil samples were collected from six experimental sites in Genadendal, Western Cape province of South Africa from 2016 to 2017. DNA was extracted from single-second stage juveniles and species identifi cation was done using species-specifi c sequence-characterised amplifi ed regions (SCAR) primers. Meloidogyne hapla and M. javanica were identifi ed from the sites. Mean population density of the nematodes varied significantly (p < 0.05) in the six sites, with the peak population being recorded in summer of 2017. The study suggests that seasonal variation in temperature and moisture could contribute to changes in the population density of root-knot nematodes in the soil.

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Section: Introductionmentioning

confidence: 99%

Occurrence and seasonal changes in the population of root-knot nematodes on honeybush (Cyclopia sp.)

2021

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“…Initially, the two cultivated species were monitored and evaluated in Elsenburg (33.502687°S, 18.504760°E) (Figure 1). The coordinates of each site were located using a GPS (Garmen Oregon 550) with weather data presented in Table 1 of Motsa et al (2016). …”

Section: Study Species Population and Sitesmentioning

confidence: 99%

“…Variations in the dominance of predators is caused by the host species, weather conditions and impact of habitat disturbances within cultivated honeybush stands; determined by the seasonal availability of resources and responses to environmental conditions, with higher temperatures favouring predatory taxa such as wasps and beetles (Slabbert, 2016). Pod development and seed maturation in Cyclopia coincides with the hot dry summer condition in late October to December (Motsa et al, 2016), that could favour fruit and seed predation thus affecting fecundity. According to Slabbert (2016) C. genistoides (sprouter) resisted insect pest damage more than C. maculata (non-sprouter) indicating phenology and life history importance of the host plant.…”

Section: Fecundity Variation Between Cultivated and Wild Speciesmentioning

confidence: 99%

“…In legumes, dormant seed are associated with resistance to extinction by natural hazards (Silvertown, 1984), as well as longer viability and thus may affect germination pattern (Aref et al, 2011), resulting in a lack of uniformity in seed germination (Mohammadi et al, 2011). Very hot dry summer conditions prevail during pod ripening of the two Cyclopia species (Motsa et al, 2016) which can lead to activation of coat imposed dormancy thus safe guarding against unfavourable conditions during regeneration of dispersed seeds.…”

Section: Germination Variation Between Cultivated and Wild Speciesmentioning

confidence: 99%

“…However, this information is scarce since there are no scientific studies that have undertaken to study the agronomic and horticultural aspects of honeybush previously despite such efforts. A few studies have been recently undertaken which have looked at honeybush phenology (Motsa, Slabbert, Bester, & Ngwenya, 2016), seed anatomy (Koen, Slabbert, Bester, & Bierman, 2016), root cutting and growth media effect (Mabizela, Slabbert, & Bester, 2016), seed volatiles during germination (Motsa, Slabbert, Bester, Mokwena, & Taylor, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Natural Fecundity and Germination Characteristics of Selected Cyclopia (Honeybush) Species: Preliminary Findings

Motsa¹,

Bester²,

Slabbert³

et al. 2017

JAS

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Cyclopia Vent. (honeybush) is a South African herbal tea legume endemic to the Cape Floristic Region of South Africa. At present, knowledge of reproductive fitness (fecundity) between cultivated and undomesticated Cyclopia species is scant. Cultivated genotypes of C. genistoides (L.) R.Br. and C. subternata Vogel were evaluated for their potential to produce fruit and seeds in different localities spanning two years. Fecundity and germination were also determined from natural environment of each species and compared to cultivated species in order to determine the variation between species and between cultivated and non-cultivated species. Seeds collected were weighed to determined seed mass and evaluated for germination rate and cumulative germination per individual site. A fifth of flowers developing into a pod, averaged more initiated and filled seeds per pod in C. subternata than C. genistoides. Germination percentage was directly proportional to rate of germination in both species. Cyclopia subternata had a higher fecundity and germination than C. genistoides in both cultivated and natural environments. The study results assist in the further improvement of the genus through breeding new cultivars for seed with desired qualities for improving commercial characteristics; planning of seed orchards for seed production, selecting of best sites, assisting in choosing progenies for seed production and rehabilitation of degraded sites for the sustainable production of honeybush.

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Propagation and cultivation practices of honeybush (Cyclopia spp.) for the sustainable production of an export quality indigenous South African tea

et al. 2022

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Honeybush (Cyclopia) species are endemic to the Fynbos Biome of the Cape Floral Kingdom in South Africa. Traditionally, honeybush foliage is cut, fermented, and sun-dried to make an antioxidant-rich herbal tea. Approximately 80% of honeybush is unsustainably harvested from the wild. All commercial species are indicated on the International Union for Conservation of Nature Red List of Threatened Species. Cultivation is thus required to ensure sufficient volumes of tea are produced. A major limitation to cultivation is the poor rooting responses of the species that regenerate from shoots, C. genistoides and C. intermedia, the latter being the most harvested from the wild. The establishment of clonally propagated material is a challenge for all six of the commercially important Cyclopia species. Research on honeybush has mainly focused on the unique properties contributing to flavor, medicinal value, as well as processing. Much less is known about propagation, nutrient requirements, harvesting procedures, plant improvement, and pest and disease management. This review considers management strategies for the sustainable harvesting of wild honeybush and the potential risks of introducing improved plant material. Cultivation practices and management strategies that promote longevity and enhance yield are defined. The inherent rooting ability of cuttings is discussed. Cultivated stands are mostly established by seedlings which results in diversity of vigor and tea quality. A sustainable market based on high-quality indigenous tea requires the use of clonal material which allows the selection of desired traits and rapid multiplication. Its use would enable improved yield and profitability without compromising tea quality.

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Phenology of honeybush (Cyclopia genistoides and C. subternata) genotypes

Cited by 13 publications

References 30 publications

Occurrence and seasonal changes in the population of root-knot nematodes on honeybush (Cyclopia sp.)

Occurrence and seasonal changes in the population of root-knot nematodes on honeybush (Cyclopia sp.)

Natural Fecundity and Germination Characteristics of Selected Cyclopia (Honeybush) Species: Preliminary Findings

Propagation and cultivation practices of honeybush (Cyclopia spp.) for the sustainable production of an export quality indigenous South African tea

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