Germination of Osmotically Primed Asparagus and Tomato Seeds after Storage up to Three Months

Owen, Paul L.; Pill, Wallace G.

doi:10.21273/jashs.119.3.636

Cited by 17 publications

(9 citation statements)

References 13 publications

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“…1). Our results along with studies of tomato (Alvarado and Bradford, 1988;Argerich et al, 1989;Owen and Pill, 1994), wheat (Nath et al, 1991), and lettuce (Tarquis and Bradford, 1992) indicate that priming before storage is deleterious to seed longevity in some species.…”

Section: Discussionsupporting

confidence: 65%

“…Other studies have shown that primed seeds have decreased storage life. Tomato (Alvarado and Bradford, 1988;Argerich et al, 1989;Owen and Pill, 1994) and wheat (Nath et al, 1991) seeds exhibited reduced storage life following priming. Prehydration treatments in water for <1 h had little effect on the rate of germination or storage life of lettuce seeds, but increasing the duration of either priming or prehydration reduced the mean time to germination or seed longevity by as much as 84% compared to nonprimed seeds (Tarquis and Bradford, 1992).…”

Section: Methodsmentioning

confidence: 99%

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Viability and Vigor of Osmotically Primed Muskmelon Seeds After Nine Years of Storage

Oluoch¹,

Welbaum²

1996

jashs

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The viability and vigor of osmotically primed (0.3 m KNO3, 6 days, 25C) and nonprimed `PMR 45' muskmelon (Cucumis melo L.) seeds were compared after storage for 9 years at <20C and 6% moisture content (MC, dry weight basis). Viability was compared at 20, 25, and 30C at water potentials of 0, -0.2, -0.4, -0.6, and -0.8 MPa and in soil. Additionally, stored primed and nonprimed seeds were either primed, aged (15% MC and 45C) for up to 8 days, or aged for 72 hours and primed. The force required to puncture 5-mm-long, micropylar seed pieces was measured using an Instron universal testing machine. Less force was required to puncture primed seed pieces at 0, 5, 15, 20, and 25 hours of imbibition, demonstrating that osmotic priming weakens the perisperm envelope tissue that the radicle must penetrate for germination to occur. In an earlier report, germination rate and final germination percentages were higher for osmotically primed seeds both in laboratory tests and field emergence studies conducted immediately after priming. After 9 years in storage, nonprimed seeds germinated to higher percentages in water at 30C and reduced water potential at all temperatures, while primed seeds germinated to higher percentages in water at 20 and 25C and exhibited a higher percentage of seedling emergence at a soil MC of 17%. Priming durations of ≤5 days had no effect on the viability, while longer durations decreased the viability of stored primed and nonprimed seeds. Priming generally decreased the log mean time to germination of stored nonprimed seeds but increased values for stored primed seeds. Controlled deterioration increased the log mean time to germination and decreased the viability of primed seeds faster than nonprimed seeds. Priming following controlled deterioration had no effect on nonprimed seeds and reduced the percent viability of primed seeds by 20%. Osmotic priming has a deleterious effect on the seed storage life of muskmelon seeds.

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Section: Discussionsupporting

confidence: 65%

Section: Methodsmentioning

confidence: 99%

Viability and Vigor of Osmotically Primed Muskmelon Seeds After Nine Years of Storage

Oluoch¹,

Welbaum²

1996

jashs

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“…Therefore, dryingback is necessary to allow seed storage after priming and represents a crucial phase, as the benefits achieved with priming may be lost (Parera and Cantliffe, 1992). The effects of priming on seed longevity appear somewhat contradictory: the treatment was shown to enhance seed longevity in pepper (Georghiou et al, 1987), onion (Allium cepa L.) (Dearman et al, 1986) and Brussels sprouts (Burgass and Powell, 1984), whereas it was responsible for a depression of longevity in seeds of leek (A. porrum L.) (Bray, 1995), carrot (Daucus carota L.) (Dearman et al, 1987), wheat (Triticum aestivum L.) (Nath et al, 1991), lettuce (Kraak and Weges, 1989;Tarquis and Bradford, 1992) and tomato (Alvarado and Bradford, 1988;Argerich and Bradford, 1989;Owen and Pill, 1994).…”

Section: Drying-back and Seed Longevitymentioning

confidence: 99%

Treatment conditions and biochemical processes influencing seed priming effectiveness

Girolamo¹,

Barbanti

2012

Ital J Agronomy

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A review of the scientific literature indicates osmotic priming (osmopriming) as the principal method of seed priming and polyethylene glycol (PEG) as the principal osmotic agent. An analysis of the available data across experiments carried out with different species under varying conditions showed an average 11% increase in percent germination and 36% shorter mean germination time (MGT) in primed vs. unprimed seeds. Moreover, in primed seeds MGT was less dependent on temperature, which is consistent with the effects expected from the treatment. Priming effects are mainly influenced by osmotic potential, temperature and time; major biochemical processes (repair of damaged DNA and RNA, preparation for cell division and increased antioxidant activity) are involved in treatment effects to an extent which is not fully ascertained in literature. A reduction of seed storage life is the major disadvantage of priming and the principal constraint to its diffusion, since dehydration to the initial moisture (drying-back) is needed to allow seed storage. Seed behaviour during drying-back, the role of the raffinose family oligosaccharides in cell membrane integrity and the expression of antioxidant enzymes in germinating seeds need to be further elucidated in a sufficient number of species, to promote a more reliable use of this technique.

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“…O diâmetro de caule nos tratamentos irrigados com água de condutividade 1,5; 3,0; 4,5 e 6,0 dS m -1 foi reduzido para 7,25; 6,50; 5,55 e 4,42 mm(Figura 1b), expressando quedas de 12, 21, 32 e 46%, comparadas à água de conteúdo salino 0,5 dS m -1 . Os resultados estão de acordo com os obtidos por Hashen et al (1993) e Wen & Pill (1994) após constatarem efeitos depressivos da salinidade sobre o crescimento, desenvolvimento e produção do aspargo, pimentão e tomate.…”

Section: Resultsunclassified

Crescimento Vegetativo Do Quiabeiro Em Função Da Salinidade Da Água De Irrigação

Silva¹,

Santos²,

Santos³

et al. 2001

R_I

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CRESCIMENTO VEGETATIVO DO QUIABEIRO EM FUNÇÃO DA SALINIDADE DA ÁGUA DE IRRIGAÇÃO Alexandre Paiva da SilvaClodoaldo Júnior Oliveira SantosJoão Batista dos SantosPós Graduação em Manejo de Solo e Água/Universidade Federal da Paraíba - CEP: 58397-000, Areia-PB. E-mail: alexsolos@zipmail.com.brLourival Ferreira CavalcanteDepartamento de Solos e Engenharia Rural/Centro de Ciências Agrárias-UFPB.CEP:58397-000. Areia-PB. E-mail: lofeca@cca.ufpb.br 1 RESUMO O trabalho foi realizado em abrigo protegido do CCA/UFPB-Campus III, Areia-PB, com o objetivo de avaliar os efeitos da salinidade da água de irrigação e conteúdos de água disponível do solo sobre o crescimento vegetativo do quiabeiro, Abelmoschus esculentus L. Os tratamentos foram distribuídos em blocos casualizados com três repetições e duas plantas por parcela, arranjados num fatorial 5 x 2, referentes aos valores de salinidade da água 0,5; 1,5; 3,0; 4,5 e 6,0 dS m-1 e aos níveis de 80 e 100% da água disponível do solo. Os resultados evidenciaram que o aumento da salinidade da água de irrigação provocou reduções significativas sobre o crescimento em altura, diâmetro do caule, área foliar e rendimento biológico das raízes, caules e folhas das plantas, independente de serem irrigadas ao nível de 80 e 100% da água útil ou disponível do solo. UNITERMOS: salinidade, água disponível, Abelmoschus esculentus L. SILVA, A.P., SANTOS, C.J.O., SANTOS, J.B., CAVALVANTE, L.F. VEGETATIVE GROWTH OF OKRA AS FUNCTION OF SALINITY WATER IRRIGATION 2 ABSTRACT This study was carried out in order to evaluate the effects of water salinity irrigation and content of availability water into soil on vegetative growth in okra plants, Abelmoschus esculentus L. The treatments were distributed in randomized blocks in factorial design 5 x 3 referring to salinity water irrigation levels: 0.5; 1.5; 3.0, 4.5 and 6.0 dS m-1 and 80 and 100% of availability water level into soil. The data showed that increment of salinity of water decreased the plants growth in height, stem diameter, leaf area and dry matter production by roots, stems and leaves of plants irrigated with water volums at level of 80 and 100% of water availability into soil. KEYWORDS: saline water, soil water availability, Abelmoschus esculentus L.

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Germination of Osmotically Primed Asparagus and Tomato Seeds after Storage up to Three Months

Cited by 17 publications

References 13 publications

Viability and Vigor of Osmotically Primed Muskmelon Seeds After Nine Years of Storage

Viability and Vigor of Osmotically Primed Muskmelon Seeds After Nine Years of Storage

Treatment conditions and biochemical processes influencing seed priming effectiveness

Crescimento Vegetativo Do Quiabeiro Em Função Da Salinidade Da Água De Irrigação

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