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Table 2 Phenotypic correlation (r) coefficients for agronomic traits in DHs and TC populations

From: Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross

Correlations

GF

PH

HD

YD

TP

KGW

SP

GP

SS

PL

SDEN

DHs and GCADHs

0.32**

0.86**

0.75**

0.06

0.36**

0.55**

0.66**

0.38**

0.12

0.67**

0.73**

ZS97 × DHs and DHs

0.34**

0.83**

0.83**

0.42**

0.40**

0.58**

0.69**

0.57**

0.36**

0.69**

0.79**

ZS97 × DHs and GCADHs

0.78**

0.89**

0.83**

0.50**

0.82**

0.77**

0.68**

0.47**

0.48**

0.87**

0.74**

ZS97 × DHs and SCAZS97×DHs

0.78**

0.52**

0.44**

0.80**

0.73**

0.40**

0.57**

0.70**

0.79**

0.38**

0.42**

WYG × DHs and DHs

0.23*

0.60**

0.44**

−0.31**

0.22*

0.44**

0.31**

−0.17*

−0.16*

0.56**

0.34**

WYG × DHs and GCADHs

0.52**

0.76**

0.48**

0.67**

0.64**

0.65**

0.68**

0.58**

0.67**

0.71**

0.69**

WYG × DHs and SCAWYG×DHs

0.74**

0.17*

0.17*

0.81**

0.62**

0.33**

0.50**

0.74**

0.85**

0.25**

0.48**

P64S × DHs and DHs

0.25**

0.82**

0.57**

−0.05

0.22*

0.58**

0.43**

0.33**

0.11

0.62**

0.59**

P64S × DHs and GCADHs

0.73**

0.91**

0.88**

0.62**

0.70**

0.73**

0.79**

0.64**

0.59**

0.87**

0.83**

P64S × DHs and SCAP64S×DHs

0.63**

0.33**

0.61**

0.58**

0.66**

0.22*

0.65**

0.46**

0.24*

0.31**

0.63**

GCADHs and SCAZS97×DHs

0.22*

0.21*

0.17*

−0.08

0.24*

0.02

−0.08

−0.10

−0.11

0.03

−0.13

GCADHs and SCAWYG×DHs

−0.20*

−0.35**

−0.56**

0.19*

−0.18*

−0.15*

−0.15*

0.08

0.29**

−0.26**

−0.15*

GCADHs and SCAP64S×DHs

−0.06

0.10

0.36**

−0.21*

−0.07

−0.11

0.24*

−0.07

−0.45**

0.00

0.26**

  1. GCADHs denote the general combining ability of DH lines; SCAZS97×DHs, SCAWYG×DHs and SCAP64S×DHs indicate the special combining ability for hybrids of ZS97 × DHs, WYG × DHs and P64S × DHs
  2. GF grian-filling degree, PH plant height, HD heading date, YD yield, TP number of tillers per panicle, KGW grain weight per 1000 grains, SP spikelet per panicle, GP number of grains per panicle, SS seed-setting rate, PL panicle langth, SDEN grain density per panicle
  3. * P < 0.05, ** P < 0.01