Yield, Yield Distribution, and Forage Quality of Warm-Season Perennial Grasses Grown for Pasture or Biofuel in the Southern Great Plains

Table 5

Dry matter crude protein (CP), total digestible nutrient (TDN), and acid detergent fiber (ADF) by harvest month of fifteen warm-season perennial grasses in 2005 near Ardmore, OK, USA.

Species	(g kg^−1)
	May			June			August			October
	CP	TDN	ADF	CP	TDN	ADF	CP	TDN	ADF	CP	TDN	ADF
Alamo switchgrass	97	567	414	—	—	—	69	563	419	82	581	395
Blue panicgrass	171	602	369	194	650	307	91	569	411	52	536	453
Blackwell switchgrass	127	599	370	—	—	—	75	569	411	—	—	—
Dallisgrass	—	—	—	153	606	360	—	—	—	56	516	479
Ermelo weeping lovegrass	110	578	399	—	—	—	76	536	453	63	531	460
Carostanflaccidgrass	159	599	372	—	—	—	67	551	435	65	544	443
Johnsongrass	101	561	421	—	—	—	71	558	425	69	549	436
Selection 75 kleingrass	121	581	396	—	—	—	60	546	440	59	560	423
Lometaindiangrass	—	—	—	112	581	396	—	—	—	55	525	467
Midland 99 bermudagrass	179	645	314	—	—	—	64	579	398	81	593	380
Morpa weeping lovegrass	127	592	381	—	—	—	68	543	444	61	530	462
Pensacola bahiagrass	133	582	395	133	586	389	76	565	417	65	548	438
Plains bluestem	—	—	—	107	551	434	—	—	—	24	481	524
Sand Mountain bahiagrass	153	619	347	—	—	—	78	573	405	74	557	426
WW-B. Dahl old world bluestem	—	—	—	121	608	361	—	—	—	34	520	474
Mean	134	593	380	137	597	375	72	559	423	60	541	447
Standard error†	8.4	7.2	9.2	13.2	13.5	17.4	2.5	4.1	5.3	4.3	7.5	9.6

— indicates that the species was not harvested that month.
^†Standard errors are calculated within columns.