Table 1 Eigenvectors for nine flag leaf morphology traits in principal component analysis of 103 rice accessions from NIAS Core Collection
Principal component1st2nd3rd
Eigenvalue3.522.471.21
Contribution ratio39.227.513.5
Cumulative contribution39.266.680.1
TraitAbbreviation
 Length of flag leafLFL−0.130.080.78
 Width of flag leafWFL0.50−0.050.21
 No. of large vascular bundlesNLVB0.39−0.270.03
 No. of small vascular bundlesNSVB0.48−0.24−0.07
 No. of small vascular bundles between large vascular bundlesNSVB bet LVB0.43−0.16−0.10
 Distance between small vascular bundlesDSVB0.280.260.50
 Thickness of flag leaf
  At point of large vascular bundleaTFL_LVB0.150.42−0.25
  At point of small vascular bundlebTFL_SVB0.130.57−0.03
  At point of motor cellbTFL_MC0.220.51−0.17
  • a Second large vascular bundle from midrib.

  • b Near second large vascular bundle from midrib.