Table 2.

Richness estimators (Chao 1 and Ace) and diversity indices of Shannon-Wiener (H′) and Simpson from bacterial communities sampled from floodwaters during reproductive and vegetative stages of rice using 16S amplicons. A 3% nucleotide dissimilarity was used for OTU discrimination.

Crop stage	Number of sequences			3% divergence
	Raw sequences	Analysed sequences	Normalization	OTUs	Chao 1	Ace	Shannon-Wiener (H′)	Simpson
Vegetative	25,981	8,483	7,348	1,551	2,282	2,266	5.77	0.03
Reproductive	18,849	7,348	7,348	603	822	842	4.28	0.05