Table 3.

Eigenvectors and eigenvalues of the first six principal components (PCs) for 24 quantitative characters of 120 genotypes.

Traits Principal Components
	PC.1	PC.2	PC.3	PC.4	PC.5	PC.6
Eigenvalue	7.42	5.16	2.57	1.79	1.24	1.12
Variance. Percent	30.94	21.49	10.70	7.44	5.16	4.69
Cumulative. variance. Percent	30.94	52.42	63.13	70.57	75.73	80.41
Eigenvectors
Days to emergence [DE]	0.33	−0.45	0.52	−0.31	0.07	−0.01
Days to flowering [DF]	0.86	0.31	0.04	−0.03	0.06	−0.22
Plant height at flowering [PHF]	0.83	0.17	0.31	0.04	0.03	−0.09
Leaf number [LN]	0.46	−0.17	−0.41	0.58	0.32	0.20
Leaf area [LA]	0.27	0.84	−0.13	−0.03	−0.22	−0.12
Leaf length [LL]	0.45	0.81	0.13	0.12	−0.07	−0.06
Leaf width [LW]	0.44	0.80	0.13	0.04	−0.17	0.03
Leaf thickness [LT]	−0.21	0.54	0.12	0.41	0.01	0.05
Petiole length [PL]	0.43	0.06	0.3	0.29	−0.43	0.47
Leaf yield [LY]	0.44	0.34	0.03	0.12	−0.21	0.30
Branch number [BN]	0.77	−0.33	0.35	0.14	0.11	0.04
Basal lateral branch length [BLBL]	0.15	−0.83	0.29	−0.05	0.07	0.25
Top lateral branch length [TLBL]	−0.45	−0.23	0.56	0.04	−0.18	0.11
Node number [NN]	0.42	−0.25	−0.45	0.57	0.30	0.25
Days to maturity [DM]	0.69	−0.33	0.21	0.29	0.00	−0.49
Plant height at maturity [PHM]	0.81	0.09	0.38	−0.03	0.10	0.07
Stem diameter [SD]	0.84	0.30	0.18	−0.10	0.10	−0.05
Auxiliary inflorescence length [AIL]	−0.80	0.09	0.31	0.34	−0.15	−0.01
Terminal inflorescence lateral length [TILL]	−0.72	0.28	0.37	0.32	−0.04	−0.15
Terminal inflorescence stalk length [TISL]	−0.61	−0.01	0.50	0.42	−0.03	0.03
Grain-filling periods [GFP]	0.15	−0.67	0.23	0.38	−0.05	−0.43
Grain sink filling rate [GSFR]	−0.38	0.62	0.29	−0.14	0.54	0.14
Thousand seed weight [TSW]	−0.35	0.35	−0.33	0.28	0.00	−0.29
Grain yield [GY]	−0.38	0.48	0.46	−0.01	0.58	0.00