Genotypic and Phenotypic Relationship among Yield Components in Rice under Tropical Conditions
Table 3
Phenotypic path analysis of the direct (diagonal) and indirect effects of eleven traits on yield per hectare in the rice genotypes.
ā
PH
FLR
DF
DM
TH
PPH
PL
FGP
UFGP
100-GW
GWH
PH
-0.143
-0.047
0.039
0.074
0.016
0.048
0.028
-0.041
0.052
0.046
0.039
FLR
0.022
0.067
0.014
0.008
0.041
0.031
0.014
0.002
0.004
0.017
0.021
DF
0.117
-0.092
-0.429
-0.143
-0.301
-0.240
-0.178
0.145
-0.255
-0.225
-0.227
DM
-0.081
0.018
0.052
0.157
0.076
0.128
0.029
-0.072
0.047
0.055
0.074
TH
-0.056
0.296
0.341
0.236
0.487
0.392
0.180
-0.181
0.358
0.289
0.270
PPH
0.047
-0.065
-0.078
-0.115
-0.113
-0.140
-0.054
0.066
-0.069
-0.083
-0.076
PL
-0.058
0.063
0.123
0.055
0.110
0.115
0.298
0.077
0.073
0.243
0.075
FGP
-0.142
0.023
0.231
0.118
0.286
0.190
0.095
-0.167
0.389
0.213
0.197
UFGP
-0.012
-0.001
0.015
0.020
0.016
0.020
-0.011
-0.044
0.019
0.007
0.005
100-GW
0.109
-0.086
-0.178
-0.119
-0.202
-0.202
-0.277
0.051
-0.186
-0.340
-0.116
GWH
-0.144
0.171
0.282
0.252
0.296
0.289
0.135
-0.061
0.270
0.182
0.534
YLD
-0.342
0.348
0.412
0.544
0.712
0.632
0.257
0.702
-0.225
0.404
0.796
PH: plant height, FLWR: flag leaf length to width ratio, DF: days to flowering, DM: days to maturity, TH: tillers per hill, PPH: panicles per hill, PL: panicle length, FGP: filled grains per panicle, UFGP: Unfilled grains per panicle, 100-GW: 100-grain weight, GWH: grain weight per hill, and YLD: yield in t/ha.