Seed pre-treatment in rice reduces damage, enhances carbohydrate mobilization and improves emergence and seedling establishment under flooded conditions

Ella, Evangelina S.; Dionisio-Sese, Maribel L.; Ismail, Abdelbagi M.

doi:10.1093/aobpla/plr007

Cited by 73 publications

(85 citation statements)

References 24 publications

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“…This emphasizes the importance of determining the right time of duration for priming depending on varieties if this technique was used to enhance the survival under submerged condition. However, Ella et al, (2011) have observed an enhancement of survival of AG-tolerant entries 'Kaiyan' and 'Khao Hlan On' under submerged condition when primed seeds were submerged for 24 hours. …”

Section: Experiments I: Seedling Survival Among Varieties When Normal mentioning

confidence: 94%

“…In contrast, hydro-priming decreased the survival of Mazhan Red compared to non-priming. According to Ella et al, (2011), priming is done to activate enzyme in germinating seeds before radical emergence. The poor survival rate of Mazhan Red may be due to early radical emergence during 24 hours of soaking and becoming dead during the drying process causing detrimental effect to the rate of survival under submergence.…”

Section: Experiments I: Seedling Survival Among Varieties When Normal mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…and seed bed management improves seedling establishment of rice sown in flooded soils (Ella et al, 2011). Seed priming is a physiological seed enhancement method and involves soaking with water (hydro-priming) or with an organic solvent (osmo-priming) followed by partial dehydration and further drying before radical emergence (Ella et al, 2011). It improves seed vigor and longevity by increasing the activities of α amylase, superoxide dismutase, catalase, scavenge reactive oxygen species and carbohydrate mobilization and decreasing lipid peroxidation activity compared to non-primed seeds, particularly in flood-sensitive rice entries (Ella et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Seed priming is a physiological seed enhancement method and involves soaking with water (hydro-priming) or with an organic solvent (osmo-priming) followed by partial dehydration and further drying before radical emergence (Ella et al, 2011). It improves seed vigor and longevity by increasing the activities of α amylase, superoxide dismutase, catalase, scavenge reactive oxygen species and carbohydrate mobilization and decreasing lipid peroxidation activity compared to non-primed seeds, particularly in flood-sensitive rice entries (Ella et al, 2011). Higher and synchronized emergence of primed seeds ensure vigorous crop stand with rapid canopy development giving rice a preliminary advantage over weeds (Anwar et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Impact of variety and seed priming on anaerobic germination-tolerance of rice (<em>Oryza sativa L.</em>) varieties in Sri Lanka

et al. 2016

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Section: Experiments I: Seedling Survival Among Varieties When Normal mentioning

confidence: 94%

Section: Experiments I: Seedling Survival Among Varieties When Normal mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of variety and seed priming on anaerobic germination-tolerance of rice (<em>Oryza sativa L.</em>) varieties in Sri Lanka

et al. 2016

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Vitality of primed rice seeds sown under prolonged dry soil conditions in an upland field

et al. 2022

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During rainfed upland rice (Oryza sativa) cultivation, unpredictable drought events can hinder the rice growth. Although drought tolerance is a reported effect of seed priming treatment, we hypothesized that plants from primed seeds would die because they would begin to emerge in dry soil. We also expected that nonemerged primed seeds would show decreased seed vigor because their metabolism was activated by priming before sowing. Therefore, we investigated the vigor of hydroprimed and nonprimed seeds during prolonged drought after sowing during upland rice cultivation. A field experiment was conducted on a rainfed upland field that had insufficient rainfall at the beginning of the season. Plant emergence, establishment, and vigor in resown nongerminated seeds were also investigated. A subsequent growth chamber experiment was conducted to investigate the relationship between sown seed deterioration, soil moisture, and temperature. Contrary to the hypothesis, plants from primed as well as control seeds could survive under prolonged drought after emergence. In the nongerminated primed seeds, oxidative damage was increased. However, the percentage of plant emergence in resown seeds did not differ between treatments. Overall, the performance of primed seeds was better than or similar to that of the control seeds. In conclusion, primed seeds have advantages even under extreme drought conditions in rainfed upland fields.

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Seed priming with selenium: Effects on germination, seedling growth, biochemical attributes, and grain yield in rice growing under flooding conditions

Jiang

Zhun³

et al. 2022

Plant Direct

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Prevalent irregular rainfall, flooding for weed control, and unleveled fields in the middle and lower reaches of the Yangtze River all contribute to flooding stress on germination and growth of direct-seeded rice (Oryza sativa L.). Herein, some experiments were conducted so as to assess the effects of seed priming with selenium (Se) on the germination and growth of rice under hypoxia. The experiment was arranged in a completely randomized factorial design with two factors and five replicates. Factors included Se concentration (0, 30, and 60 μmol/L) and duration of flooding stress (0, 2, 4, and 8 days). The experimental results showed that Se accelerated seed germination and increased emergence index and final emergence percentage. Additionally, Se increased shoot and root lengths and dry weights, but high Se concentration (60 μmol/L) reduced 18-day-old seedling dry weight under long-term flooding (8 days). Furthermore, Se reduced malondialdehyde content and increased starch hydrolysis efficiency in seeds, superoxide dismutase, peroxidase, catalase, and glutathione peroxidase activities and seedling soluble protein and total chlorophyll contents. Se improved seedling total Se and organic Se contents while increasing total dry weight and yield. Notably, the highest yield was obtained after a 4-day flooding period. Although Se priming favored rice seedling emergence and growth under flooding conditions, Se concentrations equal or above 60 μmol/L increased the risk of seedling death during long-term flooding (≥8 days).

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Seed pre-treatment in rice reduces damage, enhances carbohydrate mobilization and improves emergence and seedling establishment under flooded conditions

Abstract: Priming rice seeds (soaking followed by drying) or soaking just before sowing improved emergence from flooded soil, reduced membrane damage from ROS and hastened carbohydrate mobilization. Most benefit was to lines with a superior ability to germinate in flooded soil even when untreated.

Cited by 73 publications

References 24 publications

Impact of variety and seed priming on anaerobic germination-tolerance of rice (<em>Oryza sativa L.</em>) varieties in Sri Lanka

Impact of variety and seed priming on anaerobic germination-tolerance of rice (<em>Oryza sativa L.</em>) varieties in Sri Lanka

Vitality of primed rice seeds sown under prolonged dry soil conditions in an upland field

Seed priming with selenium: Effects on germination, seedling growth, biochemical attributes, and grain yield in rice growing under flooding conditions

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