Yield, Yield Components, and Nutritive Value of Perennial Forage Grass Grown under Supplementary Irrigation

Table 7

In vitro digestible dry matter yield (t/ha) of perennial forage grass species evaluated under irrigation supplementation.

Species	Year				Productive phase	Combined analysis
	2017	2018	2019	2020
U. decumbens ILRI_10871	0.64^b	4.32^c	6.74^b	5.66	5.57^c	4.34^cd
U. decumbens ILRI_13205	0.22^b	5.37^bc	10.41^ab	6.96	7.66^bc	5.63^bcd
Desho grass (var. Kindu kosha)	1.78^b	9.46^bc	11.40^ab	7.69	9.52^bc	7.58^bc
P. purpureum cv. ILRI_16791	1.92^b	15.79^a	16.87^a	9.90	14.19^a	11.12^a
P. coloratum cv. Coloratum	3.41^ab	6.46^bc	6.06^b	5.84	6.12^bc	5.44^bcd
P. aquatica cv. Sirrosa	6.15^a	10.31^b	9.72^b	6.25	8.76^b	8.11^ab
C. gayana cv. Massaba	3.14^ab	6.36^bc	6.54^b	5.59	6.16^bc	5.41^bcd
S. sphacelata ILRI_143	0.45^b	5.23^bc	5.33^b	4.74	5.10^c	3.94^cd
S. sphacelata ILRI_6543	0.38^b	4.53^bc	5.51^b	4.02	4.69^c	3.61^d
Mean	2.01	7.54	8.73	6.27	7.53	6.14
CV	13.67	10.51	14.16	5.67	11.96	64.82
value	0.0065	0.0039	0.0289	0.148	<0.0001	0.0001

CV : coefficient variation. Means with the different letter are significantly different.