Table 2

Phenotypic and genetic correlation coefficients among resistance and agronomic traits calculated in the population of RILs derived from EP39 × EP42.

ATa

S

PH

H

Y

STL

RSTL

SDR

CDR


AT

0.92*

0.01

0.32*

-0.36*

0.10*

0.11*

-0.11*

-0.21*

S

0.97+

-0.01

0.32*

-0.42*

0.11*

0.13*

-0.12*

-0.20*

PH

0.23+

0.20

0.07

0.37*

0.48*

-0.05

0.15*

0.05

H

0.85+

0.74+

0.53

-0.14*

0.07

0.05

0.01

-0.20*

Y

-0.68+

-0.68+

0.27

-0.84

0.12*

-0.07

0.17*

0.16

STL

0.32+

0.43+

0.51+

0.61

-0.03

0.82*

-0.25*

-0.18

RSTL

0.19

0.38+

-0.28

0.29

-0.35

0.70+

-0.37*

-0.24*

SDR

-0.44

-0.53+

0.12

-

-0.19

-0.08

-0.09

0.51*

CDR

-0.76

-0.41

0.56

-

0.22

0.94

0.58

0.68+


The phenotypic correlation coefficients are shown above the diagonal while the genetic correlation coefficients are shown below the diagonal. The correlation coefficients were obtained after evaluation in two environments under artificial selection with corn borer eggs

a AT = anthesis, S = silking, PH = plant height, H = grain humidity, Y = yield, STL = stalk tunnel length, RSTL = relative stalk tunnel length, SDR = shank damage rating, CDR = cob damage rating.

* Phenotypic correlation was significant at the 0.01 probability level.

+ Genotypic correlation exceeded twice its standard error.

Ordas et al. BMC Genomics 2010 11:174   doi:10.1186/1471-2164-11-174

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