Haniyeh Saadat; Mohammad Sedghi
Abstract
In order to investigate the effect of hydropriming and hormone priming on some physiological and biochemical characteristics in chickpea under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2023 with 3 replications. ...
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In order to investigate the effect of hydropriming and hormone priming on some physiological and biochemical characteristics in chickpea under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2023 with 3 replications. treatments included four salinity levels (0, 50, 75 and 100 mM) and four levels of priming (control, hydropriming, priming with gibberellin (50 ppm) and salicylic acid (100 ppm)). The results showed that salinity stress reduced germination percentage (GP), germination rate (GR), radicle and Seedling length (RL and SL) But, seed priming improved these traits. Salinity increased the allometric coefficient (AC), So that the highest was observed at (0.860) salinity of 100 Mm. The highest mean daily germination (MDG), plumule length (PL) and total seed protein content were observed in priming with gibberellin and control (without salinity). The maximum DGS (0.144) and MDA (0.0137 mmol/g FW) were related to the treatment with without priming and salinity of 100 mM. The amount of soluble sugars in gibberellin treatment and salinity of 100 mM compared to the control showed an increase about 56%. Also, the use of gibberellin increased amount of proline by about 40% compared to the control (without priming). In general, seed hydropriming, salicylic acid, especially gibberellin
Haniyeh Saadat; Mohammad Sedghi
Abstract
In order to investigate The effect of priming and aging on the growth indicators and activity of antioxidant enzymes in hybrid maize single cross 704 a factorial experiment was conducted based on a completely randomized design at the University of Mohaghegh Ardabili in 2021 with 3 replications. Treatments ...
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In order to investigate The effect of priming and aging on the growth indicators and activity of antioxidant enzymes in hybrid maize single cross 704 a factorial experiment was conducted based on a completely randomized design at the University of Mohaghegh Ardabili in 2021 with 3 replications. Treatments were aging (control, 7 and 14 days) and priming (control, hydro-priming, priming by gibberellin (20 mg / l) and salicylic acid (100 mg / l)). The results showed that aging decreased growth indicators including Radicle Length (RL), Plumule Length (PL), Seedling Length (SL), Radicle Dry Weight (RDW), Plumule Dry Weight (PDW), Radicle Fresh Weight (RFW), Plumule Fresh Weight (PFW) Seed Length Vigor Index (SLVI) and Seed Weight Vigor Index (SLWI), but types of priming, especially priming with gibberellin improved these traits. As compared to the control, the catalase, superoxide dismutase, and glutathione reductase activities increased respectively by 73%, 63%, and 21% after gibberellin treatment and 14 days of aging. The highest amount of peroxidase enzyme activity (1.797 units mg-1 protein) was related to gibberellin priming. In general, gibberellin pretreatment increased fragile corn seeds' growth indicators and antioxidant enzymes activities, and it can be used to enhance.aging compared to the control showed an increase respectively about 73%, 63% and 21%. The highest amount of peroxidase enzyme activity (1.797 units mg-1 protein) was related to gibberellin priming. In general, using gibberellin pretreatment strengthened weak corn seeds growth indicators and antioxidant enzymes and the treatment can be used to increase weak seed vigor.
