Non-destructive estimation of field maize biomass using terrestrial lidar: an evaluation from plot level to individual leaf level

Table 5 Correlations between predicted and field-measured biomass at individual plant level using simple regression methods

Variable	Simple linear regression		Log transformed simple regression
Variable	R²	RMSE, g	R²	RMSE, g
Height	0.93**	10.78	0.96**	9.13
Crown size	0.64**	23.24	0.72**	21.98
CHR	0.66**	22.87	0.65**	23.69
Canopy cover	0.06	37.47	0.06	41.27
PLA	0.71**	21.91	0.67**	22.42
Volume	0.83**	17.24	0.81**	18.12
PAI	0.43**	31.39	0.33**	37.72
3DPI	0.64**	23.24	0.78**	19.6

Italic values indicate the most important variable and the corresponding prediction accuracy (i.e., R2 and RMSE) of simple regression models (i.e., SLR and LSR)
* p < 0.05; ** p < 0.01

ISSN: 1746-4811