Table 6 Total soluble sugars (mg g-1) in the leaves of two soybean genotypes (Coraline and Speeda) at 3 different sampling dates as affected by hydrogen peroxide foliar spray application under drought stress conditions (D: drought from R1 till R2 stage, D1: drought from R1 till R2 stage + 1 mM hydrogen peroxide, D5: drought from R1 till R2 stage + 5 mM hydrogen peroxide, D10: drought from R1 till R2 stage + 10 mM hydrogen peroxide, CD: continuous drought starting from R1 stage, CD1: continuous drought starting from R1 stage + 1 mM hydrogen peroxide, CD5: continuous drought starting from R1 stage + 5 mM hydrogen peroxide, CD10: continuous drought starting from R1 stage + 10 mM hydrogen peroxide).

From: Elevated tolerance of both short-term and continuous drought stress during reproductive stages by exogenous application of hydrogen peroxide on soybean

Sampling date

3 days after drought stress application at R1 stage

3 days after R3 stage started

At the end of R4 stage

Treatment

Coraline

Speeda

Coraline

Speeda

Coraline

Speeda

Control

42.5c

45.9d

36.1b

40.2d

33.3b

35.8b

D

123.8b

165.2c

65b

84.4c

51.3a

59.7a

D1

160.1a

228.3a

68.9b

90.4c

53.9a

61.1a

D5

182.7a

215.8ab

70.9b

86.1c

54.1a

60.8a

D10

173.9a

195bc

69b

84.9c

52.8a

59.7a

CD

125b

163.9c

175.3a

235.7b

NA

NA

CD1

162.1a

230.4a

184.9a

286.4a

NA

NA

CD5

177.7a

213.8ab

189.2a

271.9a

NA

NA

CD10

173.5a

195.5bc

186.6a

262.8a

NA

NA

  1. All values are the means of 3 replicates. In each genotype, different letters indicate significant differences at .05 level as indicated by Duncan’s multiple range test. NA: Not Applicable.