Table 4.

Results of a principal component analysis of ten traits of 80 genotypes of peas grown at various soil fertility levels in relation to adzuki bean beetle infestation.

Neither rhizobium nor phosphorus					With rhizobium				With rhizobium and phosphorus
Principal components					Principal components				Principal components
Traits	PC1	PC2	PC3	PC4	PC1	PC2	PC3	PC4	PC1	PC2	PC3	PC4
NE	−0.001	−0.025	0.994	0.095	−0.004	0.269	0.962	−0.022	−0.01	−0.048	0.996	0.015
DAE	0.283	0.497	0.033	−0.358	0.320	0.128	−0.023	0.244	0.332	0.125	0.046	−0.423
NA	0.350	−0.185	−0.048	0.392	0.341	−0.221	0.065	0.407	0.372	−0.141	−0.020	−0.285
AR	−0.241	0.552	−0.049	0.638	0.353	0.099	−0.015	0.257	0.126	0.731	0.015	−0.045
MNHPS	0.379	−0.034	−0.021	0.263	0.349	−0.319	0.083	−0.289	0.390	−0.061	−0.006	0.039
TSW	0.379	−0.034	−0.021	0.263	0.367	0.179	−.043	0.049	0.390	−0.061	−0.006	0.039
PSC	0.369	−0.089	−0.037	0.244	0.378	0.089	−0.024	0.043	0.377	0.069	−0.012	0.063
PDS	0.309	0.307	0.048	−0.093	0.378	0.089	−0.024	0.043	0.307	0.153	0.014	0.823
PSWL	0.304	0.448	0.023	−0.221	−0.237	0.634	−0.171	0.446	0.368	0.106	0.039	−0.207
SI	0.355	−0.324	0.011	−0.210	0.236	0.546	−0.169	−0.646	0.237	−0.616	−0.036	0.093
Eigen Values	6.61	1.27	1.01	0.65	6.71	1.02	0.94	0.60	6.28	1.63	1.00	0.49
Proportion (%)	66.3	11.7	10.2	6.6	66.98	11.0	8.9	6.1	62.8	16.3	10.2	4.9
Cumulative (%)	66.1	77.8	86.9	94	66.9	78.6	88.1	92.3	62.8	79.2	89.2	94.2

NE stands for "total egg number," DAE for "days to adult emergence," and NA for "number of adults emerged." PSD stands for percentage of seed damage, PSC for percentage of seed coat weight, TSW for thousand seed weight, SI for susceptibility index, AR for adult recovery, and MNHPS for mean number of holes per seed.