Influence of Seed Hydration on Seedling Performance

Taylor, A.G.; Prusiński, J.; Hill, H. J.; Dickson, M.D.

doi:10.21273/horttech.2.3.336

Cited by 30 publications

(29 citation statements)

References 30 publications

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“…Seeds were monitored for water uptake every 24 h for 6 d following sowing. Hydration rate was expressed as K (lnMC h −1 ) where K = [(lnMC − lnMCo) t −1 ], and K is the hydration rate, MC is the moisture content at Time t , MCo is the initial moisture content, and t is time in hours (Taylor et al, 1992)…”

Section: Methodsmentioning

confidence: 99%

Modification of Seed Germination Performance through Cold Plasma Chemistry Technology

et al. 2000

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This study was conducted to determine if an alternate seed treatment approach based on plasma chemistry would offer a more viable alternative over traditional seed coating technologies. Seed germination characteristics were modified in five agricultural species by coating the surface of the seeds with macromolecules from a cold plasma process using a rotating plasma reactor. The source gas entering the plasma chamber during the reaction process determined the type of coating, and coatings were typically much less than 5.0 μm in thickness. To delay germination we utilized two different hydrophobic source gases, carbon tetrafluoride (CF4) or octadecafluorodecalin (ODFD). Seeds of radish (Raphanus sativus) and two pea cultivars (Pisum sativum cv. Little Marvel, P. sativum cv. Alaska) treated with CF4, resulted in a significant delay in germination compared with untreated controls. Similarly, plasma treatment with ODFD significantly delayed germination in soybean [Glycine max (L.) Merr.], corn (Zea mays L.), and bean (Phaseolus vulgaris L.) seeds. The degree of delay was dependent on the amount of coating applied, with an increased thickness of coating resulting in a greater delay in germination. To enhance germination we treated seeds with cyclohexane, or with a gas such as aniline or hydrazine. Seeds treated with cyclohexane resulted in a significant acceleration in germination percentage for soybean but not corn seeds, while hydrazine‐treated corn seed showed a small acceleration over control seed. However, both aniline‐treated soybean and corn seed had a significant acceleration in germination percentage. Tests of water uptake determined that the major mode of action of the plasma coatings was largely on the rate of imbibition. These results demonstrate a potentially important technique to modify seed germination characteristics in agricultural plant species.

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Section: Methodsmentioning

confidence: 99%

Modification of Seed Germination Performance through Cold Plasma Chemistry Technology

et al. 2000

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“…Seed water uptake can be divided into three phases: (1) imbibition or the physical uptake of water, (2) “activation” of metabolic activity, and (3) embryo and radicle/epicotyl growth and commencement of mitosis (Fig. ; Taylor et al ; Bradford ).…”

Section: Introductionmentioning

confidence: 99%

“…Seeds are tolerant to desiccation during the first two phases of water uptake, but become desiccation sensitive once embryo growth has been initiated (e.g. phase three; Taylor et al ). Thus, effective priming treatments result in imbibition and activation of the germination process up to a point prior to embryo development so that seeds are poised to complete germination, but retain the ability to be dehydrated and stored prior to delivery to the restoration site, without major viability losses.…”

Section: Introductionmentioning

confidence: 99%

“…For example, for most species if priming has induced visible radicle emergence, viability can be assumed to have been negatively impacted (Tarquis & Bradford ; McDonald ; Bruggink et al ); however, seeds of some desert species can tolerate desiccation even after the radicle has fully emerged and commenced root extension (Gutterman ). Seed priming can be accomplished through a number of different means, including hydro‐, chemo‐, osmo‐, and solid matrix priming (Taylor et al ; Bruggink ; Paparella et al ).…”

Section: Introductionmentioning

confidence: 99%

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Seed enhancement: getting seeds restoration‐ready

Pedrini

Balestrazzi

Madsen

et al. 2020

Restoration Ecology

100

106

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Seed enhancement technologies such as seed priming and seed coating, developed by the agricultural seed industry, are standard procedures for the majority of crop and horticultural seeds. However, such technologies are only just being evaluated for native plant seeds despite the potential benefits of such treatments for improving restoration effectiveness. Key approaches applicable to native seed include: (1) seed priming, where seeds are hydrated under controlled conditions, and (2) seed coating, in which external materials and compounds are applied onto seeds through a diversity of treatments. These technologies are commonly employed to accelerate and synchronize germination and to improve seed vigor, seedling emergence, establishment, and to facilitate mechanized seed delivery to site, through standardizing seed size and shape. Seed enhancement technologies have now been tested on native seeds to overcome logistical and ecological barriers in restoration. However, further research is needed to extend the application of seed enhancements to a broader array of species, ecosystems, and regions as well as to evaluate new and innovative approaches such as the incorporation of beneficial soil microorganisms and plant growth regulators in the coatings. As techniques in native seed enhancement develop, these approaches need to be capable of being scaled‐up to provide the tonnages of seed required for global restoration.

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“…The most important factor in these is the priming agent, which can be either water or chemical. Depending on the priming agent, this enhancement technique can be done as hydro priming, osmo priming, bio priming, hormone priming, thermal priming, or solid matrix priming [2,28,29,[32][33][34][35][36][37]. The key factors in this procedure are the imbibition time and osmotic potential.…”

Section: Introductionmentioning

confidence: 99%

From Emergence to Flowering: Four Beet (Beta vulgaris ssp.) Cultivars’ Phenological Response to Seed Priming

Salimi

Boelt

2019

Agronomy

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Beta vulgaris comprise various variety groups that are cultivated for vegetative or reproductive production. As a biennial crop, beets have a photothermal induction requirement for the transition from the vegetative to the reproductive stage. Bolting and flowering are not desirable when beets are cultivated for vegetative production and are suppressed during breeding programs, though these structures are important in seed production. Therefore, the potential of seed hydro priming as an enhancement technique to partially induce vernalization in seeds was evaluated. Following hydro priming, seeds were sown in October 2018 and evaluated during three selected phenological stages. Treating seeds with hydro priming significantly improved the emergence rate in all four tested cultivars. Moreover, treatments significantly lowered the required growing degree days (GDD) for transition to the reproductive stage in all four tested cultivars. Regardless of the treatment effect on an individual developmental stage, the treatment efficiency should be evaluated on the whole production process, depending on the purpose of production. The focus of this study was mainly on improvement of seed production performance. The outcome showed the potential of priming to influence the reproductive stages of the plant life cycle rather than just the germination.

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Influence of Seed Hydration on Seedling Performance

Cited by 30 publications

References 30 publications

Modification of Seed Germination Performance through Cold Plasma Chemistry Technology

Modification of Seed Germination Performance through Cold Plasma Chemistry Technology

Seed enhancement: getting seeds restoration‐ready

From Emergence to Flowering: Four Beet (Beta vulgaris ssp.) Cultivars’ Phenological Response to Seed Priming

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