Table 1.-Brood counts, brood production efficiency, and rate of pollen consumption for caged package bee colonies fed diets containing pollen from several plant sources(a).
Pollen diet	Area of sealed brood (in.2)				Cells of sealed broad reared/g of pollen consumed	Rate of pollen consumption (g/day)	Total pollen consumed (g)
	1st count	2nd count	3rd count	Total
Blackberry	64 d	21 b	35 b	120 c	7.9 c	8.45 d	380.60
Willow	71 cd	49 a	54 ab	176 b	10.3 b	9.00 d	404.74
Sweet clover	138 a	55 a	95 a	288 a	9.9 bc	15.17 a	706.88
Boxelder	79 c	49 a	71 ab	179 b	12.2 ab	9.05 d	407.57
Fruit bloom	140 a	52 a	-	-	13.1 a	11.90 b	386.76
Mixed pollen	108 b	50 a	38 b	189 b	10.7 ab	9.90 c	446.96
(a) Numbers in the same column followed by the same letter are not significantly different at the 0.01 level according to the Waller-Duncan multiple comparison procedure (1969).