Table 4 Within-plant genotypic variance in ¹³C-photosynthate partitioning in bolls depending on position and node after 72 h ¹³C-labeling at the early flowering, peak flowering, and peak boll-setting stages /(%)

Early flowering stage

J169

66.83 b

28.82 a

4.35 a

80.68 ab

19.32 b

L21

76.36 a

21.28 c

2.36 c

82.65 a

17.35 c

99B

70.10 b

26.39 b

3.51 b

76.85 b

23.15 a

Peak flowering stage

J169

60.16 b

26.08 a

13.76 a

86.99 a

13.01 c

L21

66.46 a

23.45 b

10.09 b

83.88 a

16.12 b

99B

62.35 b

26.81 a

10.84 b

79.17 b

20.83 a

Peak boll-setting stage

J169

56.91 b

32.41 b

10.69 a

96.45 a

3.55 b

L21

57.38 b

37.42 a

5.20 b

97.32 a

2.68 c

99B

77.03 a

20.30 c

2.67 c

87.04 b

12.96 a