Effects of Acid Scarification, Priming with PEG, NaCl or Sea Water as Osmoticum and Dehydration on Spinach Seed Germination at 30.DEG.C.

Masuda, Masaharu; Hata, Naoki; Ombwara, Francis Kweya; Agong, Stephen Gaya

doi:10.2503/jjshs.74.134

Cited by 5 publications

(6 citation statements)

References 15 publications

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“…However, Masuda and Konishi (1993) found a FGP of less than 50% at 25°C in spinach seeds primed with a similar protocol (at -1.3 MPa and 10°C for 14 d). Masuda et al (2005) suggested pretreating spinach seeds with sulfuric acid followed by osmopriming, halopriming, or sea water priming to reduce their sensitivity to high temperatures. However, spinach seeds of different sizes responded differently to acid scarification (Masuda et al, 2005), increasing the variability of germination performance within the same seed lot.…”

Section: F O R M a T T E D P R O O Fmentioning

confidence: 99%

“…Masuda et al (2005) suggested pretreating spinach seeds with sulfuric acid followed by osmopriming, halopriming, or sea water priming to reduce their sensitivity to high temperatures. However, spinach seeds of different sizes responded differently to acid scarification (Masuda et al, 2005), increasing the variability of germination performance within the same seed lot. Under such a scenario, a different priming protocol may be needed to improve spinach seed germination performance at supraoptimal temperatures.…”

Section: F O R M a T T E D P R O O Fmentioning

confidence: 99%

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Osmopriming of spinach (Spinacia oleracea L. cv. Bloomsdale) seeds and germination performance under temperature and water stress

Chen¹,

Arora²,

Arora³

2010

Seed Sci. Technol.

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Seed priming has been suggested to improve germination performance under temperature or water stress. The objective of this study was to develop an optimal osmopriming protocol for spinach (Spinacia oleracea L. cv. Bloomsdale) seeds and examine its effect on the germination performance at suboptimal and supraoptimal temperatures, and under water stress. Standard germination tests at optimal germination temperature (10°C) was conducted to evaluate performance of 'Bloomsdale' spinach seeds primed in sixty different priming treatments arising from various combinations of osmoticum (PEG 8000 concentration), priming temperature and priming duration. Germination performance was evaluated by final germination percentage, germination rate, and uniformity. An optimal priming protocol was selected and used to test seed germination performance at suboptimal (5°C) and supraoptimal (20°C) temperatures, and three levels of water stress (-0.8,-1.2, and-1.6 MPa). Priming at-0.6 MPa at 15°C for 8 d was the optimal protocol for osmopriming 'Bloomsdale' spinach seeds. This treatment also improved seed stress tolerance by improving germination performance at 5 and 20°C, and water stress of-0.8 and-1.2 MPa.

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Section: F O R M a T T E D P R O O Fmentioning

confidence: 99%

Section: F O R M a T T E D P R O O Fmentioning

confidence: 99%

Osmopriming of spinach (Spinacia oleracea L. cv. Bloomsdale) seeds and germination performance under temperature and water stress

Chen¹,

Arora²,

Arora³

2010

Seed Sci. Technol.

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“…The number of days for priming for some plants is shorter than the number of days of WT10°C for Eustoma seeds. The numbers of days of priming for onion seeds (Dearman et al, 1986), spinach seeds (Masuda et al, 2005), and parsley seeds (Dursun and Ekinci, 2010) were 10, 7, and 2 days, respectively. On the other hand, in Eustoma, the effective number of days of WT10°C applied to seeds to promote growth was 35 days under dark conditions (Tanigawa et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…In priming seeds for the purpose of promoting germination, it has been reported that the improvement in germination is maintained after re-drying. In spinach, the germination rate of primed seeds stored for 10 months in a desiccator with silica gel at room temperature is greater than non-treated seeds (Masuda et al, 2005). We considered that if Eustoma grandiflorum seeds were re-dried after a wet treatment at 10°C, it would be utilized more and more by growers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Re-drying Seeds after Wet Treatment at 10°C on the Germination and Growth of <i>Eustoma grandiflorum</i> (Raf.) Shinn

et al. 2018

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This study was initiated to investigate the effects of wet treatment at 10°C (WT10°C) and subsequent re-drying treatment (RDT) on the germination and growth of Eustoma grandiflorum seeds. Both treatments, WT10°C and RDT, were applied at 10°C under dark conditions. In all the experiments, 'King of Snow', which is one of the major Eustoma cultivars in Japan, was used. When the total number of days exposed to WT10°C and RDT was set to 35 days, the prevention of rosettes and the promotion of growth were dependent on the number of days of WT10°C, and these effects were maintained after RDT. When RDT was applied to the seeds after WT10°C for 35 days, the growth promotion due to WT10°C was maintained regardless of the length of redrying time from 7 to 28 days; however, the germination rate decreased with RDT. On the other hand, applying RDT after WT10°C for 14 days had no effect on the germination rate; however, the growth promotion was insufficient compared with WT10°C for 28 days. This problem was solved by carrying out a further 14 days of WT10°C after RDT. When the seeds were exposed to WT10°C for 14 days, then re-dried for 7 days, and exposed to WT10°C for a further 14 days, the same growth promotion was achieved as for seeds exposed to WT10°C for 28 days continuously. The above results suggest that the promotion of growth depends on the total number of days of WT10°C regardless of whether these days are continuous or not. Moreover, the growth promotion was maintained after RDT. The results also suggest the possibility that when both the processes of WT10°C and the RDT are carried out by seed companies, growers who have no cooling equipment can produce cut flowers using seedlings grown in the high-temperature season.

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“…Hydropriming treatment is easy, economical, and environmentally friendly because only water is used. Research on priming treatment with various seeds, including rice seeds, has been reported (Masuda et al, 2005;Horita & Saruyama, 2006). Ajirloo et al (2013) evaluated the effects of different seed priming techniques, un-soaked seed (control), hydropriming (soaked with distill water), halopriming with KNO 3 and CaCl 2 (1% solution), on seed emergence and seedling growth of three maize varieties , and clarified that the response of varieties to different priming techniques approximately was similar and hydropriming gave significantly higher number of leaves compared to other treatments.…”

Section: Introductionmentioning

confidence: 99%

Hydropriming Treatment of Rice Seeds With Microbubble Water

Ikeura¹,

Kobayashi²,

Tamaki

2014

JAS

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In rice cultivation, seed emergence and seedling establishment tend to be unstable, and rice plants are likely to lodge during the ripening period in direct seeding, leading to an unsteady yield. Although the possibility of direct seeding in dry paddy fields is being re-examined from the viewpoint of reducing labor, unstable seed emergence and seedling establishment remain as challenges to be dealt with. Therefore, in order to improve unstable seed emergence and seedling establishment, we investigated the effects of hydropriming treatment of rice seeds with microbubble (MB)-water which have effect on promoting plant growth, on emergence and early growth of seedlings. In soil with 50% moisture content, the emergence rate, seedling height, longest root length, aboveground dry weight, underground dry weight, chlorophyll content, and α-amylase activity in seeds primed with MB-water were remarkably higher than those in seeds primed with dechlorinated-water and non-primed seeds. However, no significant differences were observed among the seeds primed the same way in soil with 25% moisture content. These results demonstrate that the hydropriming treatment of rice seeds with MB-water promotes their emergence in soil with 50% moisture content. In near future, we need to investigate seedling emergence of other cultivars hydropriming treatment with MB-water.

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Effects of Acid Scarification, Priming with PEG, NaCl or Sea Water as Osmoticum and Dehydration on Spinach Seed Germination at 30.DEG.C.

Cited by 5 publications

References 15 publications

Osmopriming of spinach (Spinacia oleracea L. cv. Bloomsdale) seeds and germination performance under temperature and water stress

Osmopriming of spinach (Spinacia oleracea L. cv. Bloomsdale) seeds and germination performance under temperature and water stress

Effect of Re-drying Seeds after Wet Treatment at 10°C on the Germination and Growth of <i>Eustoma grandiflorum</i> (Raf.) Shinn

Hydropriming Treatment of Rice Seeds With Microbubble Water

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