Table 2.

The mean comparisons of variety, screw speed, and inclination angle on power requirement and conveying capacity.

	Varieties		Screw speed (rpm)		Inclination angle (degree)
	Alikazemi	81.16 b	600	46.93 d	0	127.8 a
	Hashemi	81.41 b	800	81.56 c	20	87.28 b
Power requirement (Watt)	Khazar	99.29 a	1000	118.0 a	40	18.59 e
			1200	102.7 b	60	28.11 d
					80	54.42 c
	Alikazemi	1.975 c	600	2.102 c	0	3.581 a
	Hashemi	2.484 b	800	2.621 b	20	3.532 a
Conveying capacity (t/h)	Khazar	3.210 a	1000	2.803 a	40	3.062 b
			1200	2.697 b	60	1.672 c
					80	0.932 d

Dissimilar letters show different significantly at probability level %5.