Table 3 The results of analysis of variance and estimates of repeatability of all studied traits of the nine triploid hybrid clones at individual site

Yanzhou

P value

0.000

0.000

0.000

0.000

0.389

0.516

0.786

\( {R}_b^2 \)

0.58

0.57

0.60

0.53

–

–

–

\( {R}_c^2 \)

0.90 ± 0.05

0.95 ± 0.03

0.90 ± 0.07

0.87 ± 0.08

–

–

–

Gaotang

P value

0.000

0.000

0.054

0.000

0.000

0.000

0.000

\( {R}_b^2 \)

0.49

0.46

–

0.70

0.45

0.44

0.43

\( {R}_c^2 \)

0.85 ± 0.07

0.84 ± 0.10

–

0.93 ± 0.05

0.83 ± 0.08

0.82 ± 0.08

0.82 ± 0.08

Xiangfen

P value

0.000

0.000

0.041

0.000

0.000

0.020

0.005

\( {R}_b^2 \)

0.38

0.54

0.17

0.44

0.39

0.21

0.29

\( {R}_c^2 \)

0.79 ± 0.09

0.88 ± 0.08

0.56 ± 0.20

0.83 ± 0.11

0.79 ± 0.09

0.61 ± 0.14

0.70 ± 0.12

Pinggu

P value

0.000

0.073

0.062

0.000

0.030

0.000

0.001

\( {R}_b^2 \)

0.45

–

–

0.45

0.19

0.38

0.33

\( {R}_c^2 \)

0.83 ± 0.08

–

–

0.83 ± 0.08

0.58 ± 0.15

0.78 ± 0.10

0.74 ± 0.11

Zhengzhou

P value

0.002

0.000

0.020

0.000

0.000

0.030

0.014

\( {R}_b^2 \)

0.31

0.38

0.21

0.37

0.47

0.19

0.23

\( {R}_c^2 \)

0.73 ± 0.11

0.79 ± 0.10

0.61 ± 0.14

0.78 ± 0.10

0.84 ± 0.07

0.58 ± 0.15

0.64 ± 0.14

Taiyuan

P value

0.000

0.007

0.047

0.000

0.000

0.000

0.000

\( {R}_b^2 \)

0.42

0.26

0.17

0.64

0.61

0.39

0.48

\( {R}_c^2 \)

0.81 ± 0.09

0.68 ± 0.13

0.54 ± 0.16

0.91 ± 0.04

0.90 ± 0.05

0.79 ± 0.09

0.85 ± 0.07