Table 8.

Prediction of selection differential for studied traits based on the multi-trait stability index (MTSI).

Variable	FA1	FA2	Communality	Uniqueness’s	Goal	h2	SD (%)	SG (%)
Root yield	0.79	0.12	0.64	0.36	Increase	0.57	− 4.03	− 2.28
${\text{K}}^{+}$	− 0.83	− 0.10	0.70	0.30	Decrease	0.92	− 3.57	− 3.29
alpha amino N	− 0.83	0.39	0.84	0.16	Decrease	0.91	− 3.16	− 2.87
Sugar content	− 0.01	− 0.94	0.89	0.11	Increase	0.91	1.46	1.33
${\text{Na}}^{+}$	− 0.02	− 0.92	0.84	0.16	Decrease	0.95	− 14.54	− 13.76
Mean	–	–	0.78	0.22	–	–	–	–
Total decrease	–	–	–	–	–	–	− 25.30	− 22.19
Total increase	–	–	–	–	–	–	1.46	1.33
Eigenvalues	2.09	1.82	–	–	–	–	–	–
Variance (%)	41.76	36.48	–	–	–	–	–	–
Cum. variance (%)	41.76	78.24	–	–	–	–	–	–

FA: Factor, h²: Heritability, SD: Selection differential, SG: Selection gain.