TABLE 3.

The normalized RMSE values (%) calculated for different organ types under different PDs in 2018, exampled as 4.5, 7.5, and 15 plants m^–2.

Organ morphological parameter	PD4.5	PD7.5	PD15.0
LL	3.89	4.41	7.65
LW	6.51	6.57	9.77
SL	5.84	5.45	8.14
SW	17.74	15.61	18.83
IL	13.69	9.93	14.58
ID	2.77	7.19	5.27
LA	9.85	5.99	12.50
LIH	16.59	6.60	11.58

PD, plant density; LL, lamina length; LW, lamina maximum width; SL, sheath length; SW, sheath maximum width; IL, internode length; ID, internode diameter, exampled as PD4.5, PD7.5, and PD15. RMSE, root mean square error. The normalized RMSE is expressed as a percentage.