**Author details**

Madonna Ngwatshipane Mashabela1,2 \* and Wilfred Otang-Mbeng1

1 Faculty of Agriculture and Natural Sciences, School of Biology and Environmental Sciences, University of Mpumalanga, Mbombela, South Africa

2 Agricultural Research Council, Infruitec-Nietvoorbij, Private Bag, Stellenbosch, South Africa

\*Address all correspondence to: wilfred.mbeng@ump.ac.za

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