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Table 1 Performance of the basic generations (the parental line Zheng 58, Chang 7–2 and the hybrid Zhengdan 958) and heterosis for plant height (PH) and ear height (EH) in five environments

From: Quantitative trait locus analysis of heterosis for plant height and ear height in an elite maize hybrid zhengdan 958 by design III

Trait

Environment

Zheng58

Chang7-2

MP

F1

MPH (%)

PH

E1

183.19 ± 10.03

199.86 ± 8.47**,a

191.52

268.75 ± 12.61**,b

40.32c

E2

148.28 ± 11.40

175.32 ± 11.93**

161.80

209.67 ± 9.84**

29.59

E3

175.37 ± 7.88

205.21 ± 11.97**

190.29

247.20 ± 12.77**

29.91

E4

161.19 ± 7.63

210.50 ± 6.27**

185.84

247.97 ± 8.57**

33.43

E5

180.52 ± 8.36

215.01 ± 6.88**

197.77

247.75 ± 6.96**

25.27

EH

E1

68.90 ± 7.95

102.81 ± 10.25**

85.86

123.58 ± 10.04**

43.94

E2

45.63 ± 3.86

84.03 ± 6.09**

64.83

86.73 ± 7.72**

33.78

E3

61.14 ± 6.65

101.26 ± 9.40**

81.20

114.26 ± 8.28**

40.71

E4

51.07 ± 5.65

101.13 ± 2.86**

76.10

105.56 ± 4.84**

38.71

E5

61.41 ± 5.57

104.43 ± 6.43**

82.92

104.23 ± 5.98**

25.70

  1. ** P ≤ 0.01
  2. aComparison between Zheng 58 and Chang 7–2 using t test; bComparison between midparent (MP) and F1 using t test, cMid-parent heterosis (MPH): (F1-MP)/MP × 100