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Table 1.  1996-1999 alfalfa variety yields at the Agronomy Research Center, West Lafayette, IN    Seeding date: April 10, 1996

		Dry Matter Yield (T/A)
		1996		1997		1998		1999		96-99		% of Check
	Entry	total		total		total		total		total		96-97	98-99	96-99
	5312	4.12	*	7.09	*	7.53	*	7.95	*	26.69	*	124	141	134
	WL 324	4.24	*	6.93	*	7.48	*	7.95	*	26.60	*	124	141	133
	Amerigraze 401+Z	3.96	*	6.91	*	7.59	*	7.61	*	26.07	*	120	139	130
x	C229	4.17	*	6.85	*	7.64	*	7.38		26.04	*	122	137	130
	Excalibur II	3.89	*	6.91	*	7.51	*	7.66	*	25.97	*	119	139	130
x	C108	4.14	*	6.34		7.50	*	7.97	*	25.95	*	116	141	130
	5454	3.61		6.80	*	7.38	*	7.55	*	25.34	*	115	136	127
	WL 325 HQ	4.11	*	6.51		7.00		7.65	*	25.27	*	117	134	126
x	93-133	3.89	*	6.94	*	7.22	*	7.15		25.20	*	120	131	126
	DK127	3.68		6.77	*	7.38	*	7.29		25.12		116	134	126
	GEM	3.57		6.79	*	7.26	*	7.50		25.12		115	135	126
	Synergy	3.95	*	6.59		7.20		7.16		24.90		117	131	125
	Choice	3.40		6.82	*	6.94		7.10		24.26		113	128	121
	Vernal	3.27		5.77		5.15		5.80		19.99		100	100	100
	Grand mean	3.86		6.72		7.20		7.41		25.18
	LSD (5%)	0.42		0.41		0.44		0.46		0.90
	C.V. (%)	7.5		4.3		4.3		4.3		3.0
	No. of harvests	2		3		4		4		13
Entries with names preceded by "x" were tested using experimental seed that may not give   performance identical to commercially available seed.
Yields followed by an asterisk (*) are not significantly different from the highest yield in the column.
Yield of "Vernal" used to calculate % of check
Location:  West Lafayette, IN
Design:  Randomized block, 4 replications, 14 entries
Soil Type:  Xenia silt loam
Plots:  Five rows, 2.5' x 20', (harvested 2.5' x 15')
Seeded:  April 10 1996, with 15 lb. live seed / acre;  1.3 lb. a.i. Balan / acre, incorporated
Fertilizer:  60 lb. P2O5 and 250 lb. K2O / acre applied after first and final harvest
Insects:  Alfalfa weevil and potato leafhopper controlled by spraying
(Copyright 1999 Purdue Research Foundation)