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

Table 6 Correlations between predicted and field-measured biomass at leaf group level using simple regression methods

Variable	Simple linear regression		Log transformed simple regression
Variable	R²	RMSE, g	R²	RMSE, g
Height	0.95**	3.32	0.89**	5.37
Crown size	0.69**	7.76	0.69**	7.18
CHR	0.65**	8	0.54**	10.86
Canopy cover	0.02	13.37	0.02	13.16
PLA	0.87**	4.86	0.84**	5.28
Volume	0.84**	5.34	0.81**	6.1
PAI	0.48**	9.98	0.49**	9.49
3DPI	0.8**	6.09	0.92**	3.77

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