Research Article
The Study of Frost Occurrence in Free State Province of South Africa
Figure 5
Time series of frost-free duration in days from 1960 to 2014 for (a) Bethlehem, (b) Bloemfontein, (c) Bothaville, (d) Fauresmith, (e) Ficksburg, (f) Frankfort, (g) Virginia, (h) Wepener, and (i) Zastron.
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