Table 2. Effect of plant location, plant maturity and plant tissue toward microbial richness using DGGE.

Treatment	¥Microbial richness
	Total bacteria	Alpha proteobacteria	Beta proteobacteria	Gamma proteobacteria
location	0.320	0.107	0.784	0.709
maturity	0.599	0.039*	0.202	0.222
plant tissue	0.001**	0.007*	0.076	0.001**
location vs maturity	0.402	0.232	0.896	0.602
location vs plant tissue	0.262	0.313	0.044*	0.092
maturity vs plant tissue	0.492	0.485	0.815	0.013*
location vs maturity vs plant tissue	0.230	0.795	0.196	0.343

^¥Asterisks denote levels of statistical significance of microbial richness based on GLM.

*: significant different (p ≤0.05)

**: highly significant different (p ≤0.005)