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Table 4 Reduction in HI (%) under drought stress in field conditions

From: Physiological mechanisms contributing to the QTL qDTY3.2 effects on improved performance of rice Moroberekan x Swarna BC2F3:4 lines under drought

Genotype

Experiment

 

13DS

13WS (E)

13WS (L)

14DS (E)

14DS (L)

14WS

Swarna

96 ± 2 a

87 ± 4

64 ± 9 b

100 ± 0 a

99 ± 0 a

50 ± 5

Moroberekan

90 ± 4 a

n.a.

37 ± 7 c

49 ± 5 b

42 ± 9 b

44 ± 5

252-B

93 ± 2 a

n.a.

79 ± 3 ab

n.a.

95 ± 2 a

41 ± 3

73-B

91 ± 5 a

n.a.

93 ± 2 a

n.a.

95 ± 1 a

37 ± 5

33-B

63 ± 6 b

55 ± 13

n.a.

94 ± 1 a

n.a.

24 ± 5

89-B

64 ± 13 b

87 ± 4

n.a.

94 ± 1 a

n.a.

45 ± 8

Genotype (p-value)

< 0.05

0.053

< 0.001

< 0.001

< 0.001

0.109

  1. In Experiments 13WS and 14 DS QTL lines were separated into two maturity groups (E: early and L: late). HI: harvest index. Mean values ± se (n = 3–4) are presented. Letters indicate significant difference groups within each experiment. n.a.: not applicable because the genotype was not included in the experiment. Actual values of HI are presented in Additional file 1: Table S9