Table 1 Average values of the characters measured for the resistant and susceptible genotypes (rr, and Sr and SS, respectively) of the F2 garden experiment and F3 field experiment, and an F-test of the genotype effect (other significant effects are indicated in brackets)

From: Fitness costs linked to dinitroaniline resistance mutation in Setaria

Characters

F 2

F 3

 

rr

Sr

SS

F

rr

SS

F

Number of tillers 54 DAS

    

0.98

0.61

*

Leaf number 54 DAS

    

9.64

9.60

NS (pd)

Height of main stem 54 DAS (cm)

    

23.5

24.6

NS (pd)

Flowering time (DAS)

47.4

48.6

50.4

NS

83.0

84.8

NS (i)

Leaf number at maturity

    

15.9

16.5

*

Main stem height at maturity (cm)

44.8

48.3

49.2

NS

81.5

93.3

***

Flag leaf length (cm)

    

30.0

31.2

NS

Flag leaf width (cm)

1.71b

2.01a

2.02a

*

2.48

2.65

NS (d)

Main ear length (cm)

11.5

14.9

14.6

NS

19.5

19.9

NS (d)

Main ear width (cm)

    

3.41

3.42

NS

Main ear weight (g)

    

14.8

17.6

** (d)

Grain weight on main ear (g)

2.28b

3.96a

4.29a

*

11.1

13.9

** (d)

Grain number on main ear

1071

1678

1753

NS

4469

5116

NS (d)

Number of secondary ears

25.8a

21.7a

16.3b

**

0.91

0.95

NS

Grain weight on secondary ears (g)

    

5.57

7.46

NS

Total grain number per plant

    

6705

7846

NS (d)

Total grain weight per plant (g)

    

16.7

21.4

* (d)

Dry biomass (except ears) (g)

    

17.2

20.5

NS (d)

1000-grain weight (g)

2.13b

2.29ab

2.39a

**

2.49

2.71

***

Number of grains per g of dry biomass

    

393

383

NS

  1. Abbreviations: a, b, different letters within a line for F2 indicate different values at P<0.05; d, significant density effect; DAS, days after sowing; i, significant effect of interaction between genotype and planting type; p, significant effect of planting type.
  2. NS, *, ** and *** indicate F-test not significant and significant at P<0.05, 0.01 and 0.001, respectively.