330 Longan 'var. longan' Global Fruit 7,000.00 10,000.00 4,000.00 Calculated value In northern Vietnam longan gives a yield of about 4 to 5 t/ha while in southern Vietnam the yield is about 6 to 8 t/ha although of lower quality. However a higher figure of 8 to 10 t/ha is provided by NIAPP (1994). 1,637