Table 3.

Results of yield estimation obtained using a combination of the PBI and H, and a combination of the PBI and H_CSM, for different growth stages.

Growth Stage	Parameters	Linear Regression
		R2	RMSE (kg/ha)	NRMSE (%)
Jointing	PBI+H	0.23	1243.39	21.33
	PBI+HCSM	0.23	1237.70	21.23
Flagging	PBI+H	0.45	1052.30	18.05
	PBI+HCSM	0.48	1023.87	17.57
Flowering	PBI+H	0.66	819.66	14.06
	PBI+HCSM	0.69	781.51	13.41