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Rodney and Rachel Saunders were British botanists and horticulturalists who established Silverhill Seeds in Cape Town in the 1970s. They collected and studied rare specimens of South African plants such as Gladioli. They were murdered in 2018 while on an expedition in the oNgoye Forest. They were aged 74 and 63 respectively.
In 2018, South Africa produced 19.3 million tonnes of sugarcane (14th largest producer in the world), 12.5 million tonnes of maize (12th largest producer in the world) 1.9 million tons of grape (11th largest producer in the world), 1.7 million tons of orange (11th largest producer in the world) and 397 thousand tons of pear (7th largest producer in the world).
The seeds are easy to store, as they are resistant to most pests during storage. Teff seeds can stay viable several years if direct contact with humidity and sun is avoided. [7] Average yields in Ethiopia reach around two tonnes per ha. One single inflorescence can produce up to 1000 seeds, and one plant up to 10,000. [29]
To harvest, the entire plant is cut down, the leaves are stripped from the plant, and everything is left to dry. When the fruits begin to burst open, the seeds are harvested. For intensive plantations, leaf yields of 1,100 to 1,700 kilograms per hectare (1,000 to 1,500 lb/acre) and seed yields of 780 kg/ha (700 lb/acre) are possible. [63]
Fonio is cultivated in all West Africa as a staple crop. [11] Guinea is the biggest producer of fonio with a production of 483,906 tonnes (533,415 short tons) and a cultivated surface area of 590,129 hectares (1,458,240 acres) in 2021, followed by Nigeria (86,609 tonnes (95,470 short tons)) and Mali (47,664 tonnes (52,541 short tons)).
The seeds of K. senegalensis have an oil content of 52.5%, consisting of 21% palmitic acid, 10% stearic acid, 65% oleic acid, and 4% "unidentifiable acid" [3] The durable reddish-brown wood of K. anthotheca is used for dug-out canoes or makoros and as a general beam, door frame and shelving timber which is termite and borer resistant.
Grains of paradise (Aframomum melegueta) is a species in the ginger family, Zingiberaceae, and closely related to cardamom.Its seeds are used as a spice (ground or whole); it imparts a pungent, black-pepper-like flavor with hints of citrus.
Biodiversity of South Africa – Variety of life within South Africa and its exclusive economic zone; List of conifers of South Africa – Plants of the class Pinophyta recorded from South Africa; List of cycads of South Africa – Seed producing vascular plants of the division Cycadophyta recorded from South Africa