Seasonal Variation of the Canopy Structure Parameters and Its Correlation with Yield-Related Traits in Sugarcane

Table 7

Loading matrix of characters initial factor.

Stages	No.	F1	F2	F3	F4	F5	F6	JD	SV
Seeding	LAI	−0.042	0.853	0.074	−0.379	0.238	0.073	0.940	0.060
	MFIA	−0.232	−0.780	−0.060	0.462	−0.215	−0.019	0.926	0.074
	TD	0.212	−0.858	0.085	0.311	−0.138	−0.236	0.960	0.040
	TR	0.235	−0.857	−0.019	0.379	−0.120	−0.172	0.979	0.022
	𝐾	−0.171	−0.835	−0.040	0.433	−0.176	0.030	0.948	0.052
	LD	−0.422	0.764	−0.171	−0.174	0.117	0.260	0.902	0.098
Tillering	LAI	0.256	−0.548	−0.648	−0.126	0.329	0.181	0.942	0.058
	MFIA	−0.557	0.599	0.204	0.422	−0.131	−0.173	0.936	0.064
	TD	−0.384	0.495	0.622	0.329	−0.226	0.056	0.942	0.058
	TR	−0.388	0.558	0.562	0.271	−0.280	−0.238	0.986	0.014
	𝐾	−0.487	0.650	0.247	0.403	−0.183	−0.125	0.932	0.068
	LD	0.165	−0.288	−0.794	−0.180	0.253	−0.069	0.841	0.159
Early elongation	LAI	−0.820	0.037	−0.244	−0.024	0.366	−0.189	0.904	0.096
	MFIA	0.905	0.270	0.038	−0.062	−0.153	−0.046	0.923	0.077
	TD	0.912	−0.001	0.103	−0.092	−0.301	0.134	0.959	0.041
	TR	0.915	0.064	0.155	−0.033	−0.298	0.124	0.970	0.030
	𝐾	0.871	0.283	0.058	−0.024	−0.148	−0.034	0.866	0.134
	LD	−0.864	0.061	−0.132	0.131	0.316	−0.175	0.915	0.085
Rapid elongation	LAI	−0.745	−0.119	−0.144	0.005	−0.500	0.064	0.843	0.157
	MFIA	0.810	0.028	0.270	0.303	0.138	−0.184	0.875	0.125
	TD	0.872	0.004	0.205	0.039	0.337	−0.214	0.963	0.038
	TR	0.883	0.114	0.228	0.126	0.276	−0.156	0.961	0.039
	𝐾	0.230	0.473	−0.169	0.529	0.381	−0.128	0.747	0.253
	LD	−0.822	−0.014	−0.302	0.048	−0.255	0.147	0.856	0.144
Late elongation	LAI	0.361	0.460	−0.414	0.435	−0.056	0.245	0.765	0.235
	MFIA	−0.296	−0.182	0.697	0.058	0.456	−0.041	0.820	0.180
	TD	−0.442	−0.362	0.581	−0.336	0.101	−0.429	0.971	0.029
	TR	0.883	0.114	0.228	0.126	0.276	−0.156	0.961	0.039
	𝐾	−0.284	−0.160	0.696	0.082	0.464	−0.020	0.813	0.187
	LD	0.321	0.336	−0.405	0.511	0.181	0.460	0.885	0.115
	PH	−0.424	−0.292	0.202	−0.561	0.081	0.052	0.630	0.370
	SNH	−0.364	0.154	−0.684	0.385	0.278	−0.214	0.895	0.105
	SD	0.051	−0.288	0.732	0.117	0.089	0.510	0.903	0.097
	SDW	−0.095	−0.371	0.746	−0.039	0.109	0.502	0.969	0.031
	CY	−0.445	−0.313	0.127	0.385	0.465	0.446	0.875	0.125
	VC	11.342	7.178	5.637	3.025	2.527	1.792
	%	32.410	20.510	16.100	8.640	7.220	5.120
	CV %	32.410	52.910	69.020	77.660	84.880	90.000

Notes: JD: joint degree; SV: special variance; PH: plant height; SNH: stalk number per hectare; SD: stem diameter; SDW: single stem weight; CY: cane yield; VC: variance contribution; CV: cumulative contribution.