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Table 1 Heterosis analysis of ear architectural traits of ZD808

From: Transcriptome profiling and comparison of maize ear heterosis during the spikelet and floret differentiation stages

Stage

Trait

NG5a

CL11a

ZD808a

MPH (100%)

BPH (100%)

Spikelet differentiation stage

ear length (mm)

8.25 ± 1.07

6.4 ± 0.36

15.58 ± 0.69

112.7**

88.85**

ear diameter (mm)

2.02 ± 0.19

1.42 ± 0.06

2.86 ± 0.32

66.28**

41.58**

Floret differentiation stage

ear length (mm)

14.23 ± 0.55

10.3 ± 1.15

20.67 ± 1.53

68.53**

45.26**

ear diameter (mm)

2.4 ± 0.05

1.87 ± 0.03

3.4 ± 0.17

59.25**

41.67**

Mature ear

ear length (cm)

20.28 ± 1.00

15.05 ± 0.26

26.05 ± 0.58

47.49**

28.48**

ear diameter (cm)

4.68 ± 0.20

4.08 ± 0.17

5.60 ± 0.34

28**

19.78**

ear row number

15.50 ± 1.00

12.50 ± 1.00

16 ± 0.00

14.29**

3.23

kernel number per row

32.25 ± 1.71

21 ± 1.15

50.75 ± 4.03

90.61**

57.36**

grain yield (kg/mu)

301 ± 12.5

230 ± 4.5

553 ± 26.1

108**

84**

  1. ** indicate significant differences at P < 0.01
  2. a Values are means ± standard deviation. MPH, midparent heterosis; BPH, Best parent heterosis
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BMC Genomics

ISSN: 1471-2164

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