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Table 2 Effect of cysteine (0, 20, and 40 mg/l) on photosynthetic pigments (mg/g fresh weight) and proline content (mg/100 g dry weight) of soybean leaf tissues irrigated with saline water (0, 3000, and 6000 mg/l). Results are means of two successive seasons

From: Physiological and biochemical responses of soybean (Glycine max L.) to cysteine application under sea salt stress

TreatmentChlorophyll aChlorophyll bCarotenoidProline
Salinity (mg/l)Cysteine (mg/l)
002.26 bc0.72 ab0.41 abcd8.2 e
202.66 ab0.794 ab0.485 abc9.8 d
403.20 a1.19 a0.42 abcd10.7 d
300002.22 bc0.36 bc0.34 abcd13.7 c
202.61 ab0.69 abc0.52 a14.2 bc
402.54 ab0.78 ab0.49 ab15.6 b
600001.75 c0.15 bc0.30 cd17.6 a
202.14 bc0.35 bc0.31 bcd18.7 a
402.04 bc0.02 c0.24 d18.4 a
  1. Mean values (n = 3) in each column followed by a different letter are significantly different at ≤ 0.05 by Duncan’s multiple range test