Table 2 Effect of DHA and PA on rice cv. BRRIdhan 28 growth and yield parameters recorded at the time of harvest (120 days after transplanting). The experiment was conducted in pots in a net house during the Boro season (January – April 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

31.25 ± 2.8 b

21.38 ± 1.8 a

36.44 ± 0.8 b

23.80 ± 0.7 b

114.88 ± 11.3 c

22.13 ± 13.8 b

92.75 ± 9.8 a

40.10 ± 2.4 a

DHA 10 mM

37.63 ± 3.4 ab

26.88 ± 3.0 a

46.25 ± 2.9 a

25.93 ± 1.2 a

118.50 ± 6.5 c

87.00 ± 7.1 a

31.75 ± 4.8 c

39.65 ± 2.1 a

DHA 20 mM

42.25 ± 2.8 a

28.00 ± 2.4 a

47.00 ± 1.5 a

26.10 ± 1.0 a

172.88 ± 11.2 a

100.50 ± 7.8 a

72.38 ± ab

45.22 ± 5.0 a

PA 300 µM

35.25 ± 2.2 ab

24.38 ± 2.4 a

44.63 ± 1.7 a

24.11 ± 0.8 a

125.00 ± 17.3 bc

79.25 ± 7.9 a

45.75 ± 10.6 bc

38.13 ± 2.4 a

DHA 10 mM + PA 300 µM

39.88 ± 3.6 ab

27.63 ± 3.1 a

46.75 ± 1.7 a

26.38 ± 0.9 a

157.25 ± 12.1 ab

87.63 ± 9.2 a

70.38 ± 10.4 ab

40.56 ± 1.9 a

DMSO 300 µM

33.38 ± 3.1 ab

22.25 ± 2.4 a

42.57 ± 2.3 a

10.59 ± 4.1 a

148.38 ± 11.2 abc

77.38 ± 5.9 a

71.00 ± 9.1 ab

37.19 ± 2.4 a