Skip to main content

Table 5 Pearson correlation between traits for testcrosses of yellow endosperm maize and checks under Striga infested and non-infested conditions in four environments (n = 92)

From: Testcross performance of Striga-resistant maize inbred lines and testers with varying levels of Striga reaction

Traits

Striga infested

ASI

DYSK

DYAN

EASP

EPP

PLHT

STRCO1

STRCO2

STRRAT1

STRRAT2

YLD

ASI

 

0.50

0.39***

0.20

− 0.12

0.13

− 0.13

− 0.02

0.01

0.11

− 0.06

DYSK

  

0.99

0.21*

− 0.10

0.36***

− 0.37***

− 0.23*

− 0.23*

− 0.18

0.15

DYAN

   

0.20*

− 0.12

0.36***

− 0.35***

− 0.23*

− 0.23*

− 0.19

0.15

EASP

    

− 0.71

− 0.22*

0.25**

0.25**

0.60

0.62

− 0.76

EPP

     

0.23

− 0.47

− 0.45

− 0.74

− 0.71

0.72

PL HT

      

− 0.4

− 0.36***

− 0.38***

− 0.31

0.50

STRCO1

       

0.89

0.54

0.55

− 0.53

STRCO2

        

0.46

0.54

− 0.47

STRRAT1

         

0.88

− 0.68

STRRAT2

          

− 0.69

YLD

           
 

Striga non-infested

ASI

DYSK

DYAN

EASP

EHT

EPP

HUSK

PASP

PLHT

YLD

ASI

 

0.42

0.28**

0.22*

0.04

− 0.03

0.23*

0.19

0.00

− 0.12

DYSK

  

0.99

0.25**

0.28**

− 0.31**

− 0.04

0.26**

0.30**

0.10

DYAN

   

0.23*

0.29**

− 0.31**

− 0.08

0.24*

0.32**

0.13

EASP

    

− 0.08

− 0.23*

0.27**

0.25*

− 0.12

− 0.47

EHT

     

− 0.04

− 0.23*

− 0.11

0.80

0.43

EPP

      

− 0.15

− 0.29**

0.04

0.18

HUSK

       

0.36***

− 0.28**

− 0.34***

PASP

        

− 0.07

− 0.22*

PL HT

         

0.54

YLD

          
  1. DYSK Days to 50% silking, DYAN Days to 50% anthesis, PLHT Plant height (cm), STRRAT1 and STRRAT2 Striga damage rating at 8 and 10 WAP, respectively, STRCO1 and STRCO2 Striga emergence count at 8 and 10 WAP, respectively, EASP ear aspect, EHT ear height, PASP plant aspect, HUSK husk cover, ASI Anthesis silking interval, EPP ears per plant and YLD grain yield (kg/ha)
  2. *,**,***,† Significant at p < 0.05, 0.01, 0.001 and 0.0001 levels, respectively