Presowing Seed Priming

Parera, Carlos A.; Cantliffe, Daniel J.

doi:10.1002/9780470650561.ch4

Cited by 125 publications

(141 citation statements)

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“…Deste modo, pode-se afirmar que o condicionamento osmótico foi eficiente para acelerar a germinação das sementes destes lotes. Parera & Cantliffe (1994) sugeriram que o uso de lotes de alto vigor é essencial para se obter resultados satisfatórios com o condicionamento osmótico, o que não tem sido constatado na maioria dos estudos de condicionamento osmótico envolvendo lotes de diferentes níveis de qualidade (Bittencourt et al, 2005;Fanan & Novembre, 2007;Kikuti & Marcos-Filho, 2009;Gomes et al, 2012). Assim, no presente trabalho, verifica-se que o condicionamento osmótico foi efetivo para as sementes de média e baixa qualidade fisiológica (lotes 3 e 4, respectivamente), em acelerar a germinação, conforme observado pelos valores obtidos para a primeira contagem de germinação.…”

Section: Resultados E Discussão Ensaiounclassified

“…Dentre estas técnicas, destaca-se o condicionamento osmótico (Parera & Cantliffe, 1994) que consiste em embeber as sementes em uma solução osmótica por determinado período de tempo, de modo a promover uma hidratação controlada, reativando as fases iniciais da germinação (fases I e II) sem, contudo, atingir o estádio de emergência da raiz primária (fase III), segundo o padrão trifásico de embebição proposto por Bewley & Black (1994).…”

Section: Comunicação Científica / Scientific Communicationunclassified

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Condicionamento osmótico e desempenho de sementes de repolho com diferentes níveis de vigor

et al. 2016

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P a l a v r a s -c h a v e : B r a s s i c a o l e r a c e a v a r. c a p i t a t a ,osmocondicionamento, qualidade fisiológica, germinação. ABSTRACTOsmopriming and performance of cabbage seeds with different levels of vigor Priming, used as a pre-sowing treatment, has been recommended as an alternative to increase speed and uniformity of seed germination and seedling emergence, especially for vegetable seeds. The effect of osmopriming on performance of cabbage seed lots with different levels of vigor was evaluated. Four seed lots of cabbage '60 dias' were used. Seeds of each lot were primed in aerated -1.0 MPa PEG 6000 solution for 0, 2, 4 and 6 days at 20 o C. Seeds of each treatment, dried or not after priming, were evaluated by germination test and seedling emergence in greenhouse. In a second assay, cabbage seeds were submitted to artificial aging at 42 o C and 100% relative humidity for 0, 24, 33 and 42 h and, after that, submitted to osmopriming, as described, for six days, and subsequently dried to attain the original seed water content. Priming in 6000 PEG solution at -1,0 MPa for six days is efficient to improve germination of cabbage seeds, especially for low vigor seed lots.

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Section: Resultados E Discussão Ensaiounclassified

Section: Comunicação Científica / Scientific Communicationunclassified

Condicionamento osmótico e desempenho de sementes de repolho com diferentes níveis de vigor

et al. 2016

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“…The beneficial effects of seed priming have been demonstrated for many field crops such as wheat (Parera and Cantliffe, 1994), sweet corn (Chiu et al, 2002), mungbean (Khan et al, 2005), barley (Abdulrahmani et al, 2007), lentil , cucumber (Ghassemi-Golezani and Esmaeilpour, 2008) and winter rapeseed (Ghassemi-Golezani et al, 2010). However, seed priming decreased germination percentage in barley and corn (Sharif et al, 2006) and reduced rate of seedling emergence and plants per unit area in sunflower (Hussain et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Seed Priming and Field Performance of Soybean (Glycine max L.) in Response to Water Limitation

Ghassemi‐Golezani

Farshbaf-Jafari

Shafagh-Kolvanagh

2011

Not Bot Hort Agrobot Cluj

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Laboratory tests and a field experiment were carried out to evaluate the effects of priming methods on seed invigoration and field performance of soybean (cv. 'Zan'). The field experiment was arranged as split plot based on RCB design with three replications. Irrigation treatments (I 1 , I 2 and I 3 : irrigation after 70, 110 and 150 mm evaporation from class A pan) and priming methods (water, 3% KH 2 PO 4 and 3% KNO 3 for 8 h at 15±1°C) were allocated to main and sub-plots, respectively. Germination percentage, seedling dry weight and field emergence percentage decreased, but mean emergence time increased, due to seed priming. Grain yield under severe water deficit was 29.32% less than that under normal irrigation. Pods per plant, grains per plant and grain yield per plant were significantly enhanced as a result of low stand establishment caused by seed priming. Consequently, biological and grain yields per unit area and also harvest index were statistically similar for plants from primed and unprimed seeds. In general, priming methods had no any beneficial effect on laboratory and field performance of soybean seeds.

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“…Maize crop often fails to establish quickly and uniformly due to high temperature and crust creation by rapid soil drying (Parera and Cantliffe, 1994) especially during spring season. Many factors constraint to achieve good and uniform crop stand including improper seedbed preparation (Joshi, 1987), poor seed quality, lack of soil moisture contents (Gurmu and Naylor, 1991) and high or low temperature (Weaich et al, 1992) at planting that results in decreased yield of maize because of low plant populations.…”

Section: Introductionmentioning

confidence: 99%

Seed Priming Improves the Performance of Late Sown Spring Maize (Zea mays) Through Better Crop Stand and Physiological Attributes

Mahboob¹,

Rehman²,

Basra³

et al. 2015

IJAB

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To cite this paper: Mahboob, W., H.U. Rehman, S.M.A. Basra, I. Afzal, M.A. Abbas, M. Naeem, M. Abbas, 2015. Seed priming improves the performance of late sown spring maize (Zea mays) through better crop stand and physiological attributes. AbstractHigh soil temperature and low water potential is one of major impediment of reduced and delayed germination of spring maize under delayed planting. Seed priming helps to ameliorate the seedling establishment under both normal and less than optimal conditions but very few studies available highlight maize crop establishment improvement by seed priming on physiological basis under field conditions. The present field study evaluated the effects of various seed priming techniques on stand establishment, growth, yield and various physiological attributes of spring maize under normal and late sown conditions. The hybrid maize seed soaked with hydro-priming (water), osmopriming with CaCl 2 (Ψs= -1.25 MPa), moringa leaf extract (MLE; 1:30) and salicylic acid (SA; 50 mg L -1 ) were grown under two sowing dates (optimum and late conditions). Hydro-priming and dry seeds without priming were taken as controls. Among priming treatments, osmopriming with CaCl 2 reduced the time to 50% emergence (E 50 ), mean emergence time (MET), enhanced number of grains per cob, biological yield and improved relative water contents with reduced cell membrane permeability including grain protein contents. Osmopriming with moringa leaf extract (MLE) improved emergence time (EI), Chl a and b contents, grain yield and harvest index (HI) including hormonal priming with SA for maximum HI. Nevertheless, hydro-primed seeds exhibited the minimum days to maturity. The present study suggests that seed osmopriming with MLE and CaCl 2 are effective not only to improve seedling establishment but also yield performance of spring maize through physiological improvement under both optimal and late sown conditions.

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Presowing Seed Priming

Cited by 125 publications

References 100 publications

Condicionamento osmótico e desempenho de sementes de repolho com diferentes níveis de vigor

Condicionamento osmótico e desempenho de sementes de repolho com diferentes níveis de vigor

Seed Priming and Field Performance of Soybean (Glycine max L.) in Response to Water Limitation

Seed Priming Improves the Performance of Late Sown Spring Maize (Zea mays) Through Better Crop Stand and Physiological Attributes

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