. 2022 Dec 1;13:1078408. doi: 10.3389/fmicb.2022.1078408

TABLE 3.

Alpha diversity indices of corn stalk and Pennisetum sinese silages during ensiling.

Forage	Index	Dilution	Storage period (days)			SEM	P-value
			3	15	45		D	S	D × S
Corn stalk	ACE	D0	367.49	382.19	321.66	5.29	0.981	0.040	0.603
		D1	368.14	385.99	333.29
		D3	354.87	362.02	364.79
		D5	375.11	368.72	344.03
	Chao1	D0	239.00	253.20	222.87	3.28	0.861	0.183	0.396
		D1	245.43	236.87	213.73
		D3	236.10	225.03	241.90
		D5	249.07	236.23	231.23
	Shannon	D0	2.43	2.43	2.30	0.04	<0.001	0.080	0.191
		D1	1.82	2.03	1.85
		D3	1.53	1.75	2.08
		D5	1.64	1.92	2.02
	Simpson	D0	0.16	0.15	0.18	0.01	0.001	0.015	0.190
		D1	0.34	0.23	0.31
		D3	0.40	0.32	0.21
		D5	0.39	0.26	0.23
Pennisetum sinese	ACE	D0	334.05^AB	368.47^A	279.72^Bb	4.26	0.116	0.002	0.012
		D1	336.63	361.45	348.33^a
		D3	345.29^Ab	390.27^A	309.27^Bb
		D5	340.32	355.38	375.00^a
	Chao1	D0	142.47	155.40	129.27^b	2.82	0.155	0.285	0.043
		D1	143.47	151.53	162.80^a
		D3	155.70^AB	174.60^A	129.83^Bb
		D5	156.57	154.23	173.50^a
	Shannon	D0	2.02	2.18	1.99	0.03	0.917	0.738	0.630
		D1	2.04	2.07	2.08
		D3	2.08	2.09	1.89
		D5	2.01	2.04	2.20
	Simpson	D0	0.25	0.23	0.24	0.01	0.958	0.553	0.936
		D1	0.22	0.24	0.25
		D3	0.21	0.25	0.27
		D5	0.22	0.25	0.23

Means within the same row (A–B) or within the same column (a–b) with different superscripts differ significantly from each other (P < 0.05).

D0, undiluted; D1, 10^–1 dilution; D3, 10^–3 dilution; D5, 10^–5 dilution; D, dilution gradient; S, storage period; D × S, interaction between dilution gradient and storage period; SEM, standard error of the mean.