Table 3.

Effect of different magnitude of PEG induced imbibitional dehydration stress (− 0.344, − 0.851 and − 1.619 MPa) on glutathione (total, oxidised and reduced) and total thiol content of four indigenous aromatic rice varieties of Oryzasativa L. (Tulaipanji, Sitabhog, Badshabhog and Jamainadu)

Landraces of aromatic rice	Treatment	Total glutathione (µg g−1 dm)	Oxidized glutathione (µg g−1 dm)	Reduced glutathione (µg g−1 dm)	Total thiol content (m mol g−1 dm)
Jamainadu	Untreated control	750 ± 2.42	193.18 ± 1.96	556.82 ± 0.46	2.342 ± 0.032
	IDS (− 0.344 MPa)	416.67 ± 2.54**	82.07 ± 2.42**	334.60 ± 0.13**	1.865 ± 0.03**
	IDS (− 0.851 MPa)	325.31 ± 2.69**	140.88 ± 2.69**	184.43 ± 0.00**	1.386 ± 0.022**
	IDS (− 1.619 MPa)	537.26 ± 2.31**	125.65 ± 2.59**	411.61 ± 0.27**	1.199 ± 0.027**
Tulaipanji	Untreated control	385.9 ± 1.39	184.56 ± 1.55	201.34 ± 0.16	4.157 ± 0.008
	IDS (− 0.344 MPa)	241.6 ± 1.58**	28.01 ± 1.33**	213.59 ± 0.25	3.591 ± 0.016**
	IDS (− 0.851 MPa)	199.11 ± 1.91**	25.58 ± 1.39**	73.53 ± 0.52**	3.435 ± 0.025**
	IDS (− 1.619 MPa)	180.26 ± 1.96**	29.55 ± 1.50**	150.71 ± 0.46**	3.364 ± 0.014**
Sitabhog	Untreated control	412.31 ± 1.52	199.61 ± 1.69	212.70 ± 0.16	1.844 ± 0.015
	IDS (− 0.344 MPa)	485.03 ± 1.69	97.66 ± 1.80**	387.37 ± 0.11	1.421 ± 0.02**
	IDS (− 0.851 MPa)	378.79 ± 2.04**	244.95 ± 2.31	133.84 ± 0.27**	1.449 ± 0.016**
	IDS (− 1.619 MPa)	496.96 ± 2.26	192.70 ± 1.99**	304.26 ± 0.27	1.663 ± 0.027*
Badshabhog	Untreated control	327.75 ± 1.66	64.79 ± 1.39	262.96 ± 0.27	2.339 ± 0.024
	IDS (− 0.344 MPa)	318.28 ± 1.61**	69.44 ± 2.10	248.84 ± 0.49*	1.499 ± 0.018**
	IDS (− 0.851 MPa)	229.13 ± 2.01**	20.83 ± 1.42**	208.30 ± 0.60**	1.492 ± 0.024**
	IDS (− 1.619 MPa)	159.53 ± 2.40**	114.29 ± 2.56	45.24 ± 0.16**	1.431 ± 0.03**

Results are mean of three replicates ± standard error

* Significant from control at 0.05 level (t test); ** significant from control at 0.01 level (t test)