Genetic Diversity of Upland Rice Germplasm in Malaysia Based on Quantitative Traits

Table 9

Eigenvectors and eigenvalues of the first four principal components.

Variable	Eigenvectors
	PC 1	PC 2	PC 3	PC 4
Eigenvalue	4.37	2.14	1.53	1.14
Variation (%)	36.4	17.9	12.8	9.6
Cumulative (%)	36.4	54.5	67.1	76.7
PH	0.388	−0.227	−0.004	−0.081
DF	0.416	−0.179	0.076	0.167
DM	0.394	−0.140	0.093	0.115
FLR	0.317	−0.122	0.206	0.399
NT	0.227	0.541	0.269	−0.014
NG	0.180	−0.353	0.114	−0.473
1000 GW	0.152	0.007	−0.454	−0.288
YP	0.266	0.228	0.042	−0.591
NP	0.224	0.549	0.259	−0.017
PL	0.306	−0.135	0.008	0.197
SP	−0.141	−0.303	0.607	−0.303
SF	0.281	0.038	−0.463	−0.071

PH: plant height, DF: days to flowering, DM: days to maturing, FLR: flag leaf length to width ratio, NT: number of tillers per hill NG: number of grains per panicle, 1000 GW: one thousand grain weight, YP: yield per pot, NP: number of panicles per hill, PL: panicle length, SP: spikelet per panicle, and SF: spikelet fertility, and PC: principal components.