Effect Study of Continuous Monoculture on the Quality of Salvia miltiorrhiza Bge Roots

Table 6

The factor load matrix of variables.

Variable	F1	F2	F3	F4
Danshensu sodium	0.906	-0.038	0.225	-0.212
Rosemary acid	-0.834	0.07	-0.396	-0.314
Lithospermic acid	0.926	0.127	0.26	-0.126
Salvianolic acid B	0.832	0.427	0.14	0.063
Dihydrotanshinone I	-0.553	0.196	0.722	0.038
Cryptotanshinone	-0.254	0.652	0.469	0.462
Tanshinone I	-0.341	0.894	0.142	0.156
Tanshinone IIA	0.373	0.514	-0.682	0.132
Diameter of main roots	0.399	-0.308	-0.455	0.72
Length of main roots	0.318	-0.513	0.587	0.051
Fresh root weight	0.431	0.681	-0.176	-0.388