Table 3 Effect of DHA and PA on growth of rice cv. BRRIdhan 49. The experiment was conducted in pots in a net house during the Aman season (August – November 2022). Plants were treated with DHA or PA alone or in combination as a foliar application or mock-treated with water or DMSO 15 days after transplanting (DAT) into the pots, followed by six spraying at 10 days intervals

Control

42.63 ± 3.5 a

54.31 ± 4.9 a

67.44 ± 4.9 a

75.06 ± 2.8 c

78.19 ± 2.6 b

81.13 ± 2.1 a

86.38 ± 1.5 b

88.38 ± 1.3 c

DHA 10 mM

41.81 ± 2.3 a

57.81 ± 3.6 a

74.00 ± 1.1 ab

81.31 ± 1.1 ab

82.44 ± 0.8 ab

84.75 ± 0.5 a

91.25 ± 1.2 a

95.25 ± 2.2 ab

DHA 20 mM

45.81 ± 1.7 a

63.38 ± 0.9 a

76.88 ± 1.8 a

82.56 ± 0.6 a

85.38 ± 1.0 a

85.50 ± 1.1 a

92.00 ± 0.8 a

101.25 ± 2.8 a

PA 300 µM

41.25 ± 3.4 a

56.44 ± 5.5 a

71.56 ± 2.9 ab

80.19 ± 0.9 ab

81.38 ± 0.7 ab

84.13 ± 0.4 a

88.63 ± 1.0 ab

88.63 ± 1.0 c

DHA 10 mM + PA 300 µM

43.06 ± 1.4 a

58.56 ± 2.1 a

75.25 ± 0.6 ab

81.44 ± 0.7 ab

84.06 ± 0.7 ab

85.13 ± 0.9 a

91.63 ± 0.9 a

97.63 ± 2.0 a

DMSO 300 µM

43.19 ± 2.4 a

56.50 ± 2.7 a

70.50 ± 1.9 ab

76.25 ± 2.5 bc

80.38 ± 2.5 ab

81.94 ± 2.5 a

86.13 ± 2.7 b

91.38 ± 2.9 bc