Table 1. Nectar volume and sugar characteristics of three Prunus species for honey potential estimate.

Species		Nectar sugar contents (mg/flower)	No. of flowers (ea/plant)	Honey potential (g/tree)	No. of trees (tree/ha)	Honey potential (kg/ha)
P. spachiana	Mean	0.47	1,305,581	705.8	164	116.0
	Min.		1,241,813	671.4		110.3
	Max.		1,369,350	740.3		121.7
P. sargentii	Mean	0.34	49,430	19.1	918	17.6
	Min.		7,409	2.9		2.6
	Max.		128,240	49.6		45.6
P.×yedoensis	Mean	0.51	46,529	27.1	772	20.9
	Min.		28,665	16.7		12.9
	Max.		78,557	45.8		35.3