Table 3.

Pearson’s correlation analysis of R/S ratio with physio-biochemical and molecular indicators in the leaves and root of maize. *, **, ***, ns denote P < 0.05, 0.01, 0.001, and not significant, respectively

Traits/(plants)	Leaf	Root
Shoot biomass	−0.941**	0.968***
Total biomass	−0.921**	−0.921**
Nitrogen	−0.978**	−0.921**
Net photosynthetic rate	−0.957**	−0.924**
Soluble sugar	0.548**	0.235**
Sucrose	0.641**	0.574**
Total amino acid content	−0.926**	−0.967**
Total protein content	−0.926**	−0.959**
Starch content	0.788**	0.948**
Fructose content	0.638**	0.544**
Glucose content	0.544**	0.678**
Hexose content	0.583**	0.583**
Hexose/sucrose ratio	0.482**	0.657**
Total non-structured carbohydrates	0.341 ns	0.404**
Sucrose phosphate synthase	0.548**	0.235**
Sucrose synthase	0.658**	0.850**
Cytoplasmic invertase	0.876**	0.896**
Vacuolar invertase	0.999**	0.980**
Cell wall invertase	0.981**	0.963**
Total sucrolytic activity	0.937**	0.963**
AGPase activity	0.935**	0.947**
Starch synthase	0.807**	0.871**
α-amylase	0.856**	0.998**
β-amylase	0.871**	0.958**
ZmSuSy1	0.772**	0.624**
ZmSPS1	−0.948**	0.986**
ZmCINV1	0.990**	0.585**
ZmVINV1	0.996**	1.000**
ZmCWNV1	0.995**	0.908*
ZmSTP2	0.996**	1.000**
ZmSUC2	0.511**	0.997**
ZmSWEET14	0.617**	0.955**
ZmAGPase1	0.934**	0.547**
ZmSS1	0.995**	0.576**
ZmAMY1	0.959**	0.558**
ZmBAM1	0.994**	0.640**