Table 1.
Effect of seed priming with PEG and soil moisture stress on sorghum germination.a
Table 2.
Effect of seed priming with PEG and soil moisture stress on leaf, root, and stem RWC in sorghum seedlings.a
Table 3.
Effect of seed priming with PEG and soil moisture stress on chlorophyll content in sorghum seedlings.a
Table 4.
Effect of seed priming with PEG and soil moisture stress on sorghum root viability.a
Fig 1.
Effect of seed priming with PEG and soil moisture stress on sorghum APX, CAT, POD, SOD, MDA, and O2− activities.
(a) Ascorbate peroxidase (APX), (b) catalase (CAT), (c) malondialdehyde (MDA), (d) hydrogen peroxide (H2O2), (e) peroxidase (POD), and (f) superoxide dismutase (SOD) activities in sorghum seedlings. Unprimed or primed sorghum seeds were germinated under (I) unstressed soil moisture environment (Unstressed control), (II) drought, (III) excessive soil moisture stress (EM), (IV) 8 d drought stress followed by EM, and (V) 8 d EM followed by drought stress. Measurements were conducted at 12 and 24 days after planting (DAP). Data presented are means ± standard errors.
Table 5.
Results of variance analysis of ST, SMT, DAP, and their interactions for APX, CAT, POD, SOD, MDA, and O2− activities.a
Fig 2.
Effect of seed priming with PEG and soil moisture stress on sorghum free amino acid pool, proline, plasma membrane permeability, reducing sugar, soluble sugar, and soluble protein activities.
(a) Free amino acid, (b) electrolyte leakage, (c) reducing sugar, (d) proline, (e) soluble protein, and (f) soluble sugar in sorghum seedlings. Unprimed or primed sorghum seeds were germinated under (I) unstressed soil moisture environment (Unstressed control), (II) drought, (III) excessive soil moisture stress (EM), (IV) 8 d drought stress followed by EM, and (V) 8 d EM followed by drought stress. Measurements were conducted at 12 and 24 days after planting (DAP). Data presented are means ± standard error.
Table 6.
Results of variance analysis of ST, SMT, DAP, and their interactions for free amino acid pool, proline, plasma membrane permeability, reducing sugar, soluble sugar, and soluble protein activities.a