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

Armondes, Kássia A P; Dias, Denise Cunha Fernandes dos Santos; Martínez, Paola Andrea Hormaza; Silva, Laércio Junio da; Hilst, Paulo César

doi:10.1590/s0102-05362016003020

Cited by 5 publications

(7 citation statements)

References 16 publications

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“…For the percentage of expanded cotyledon leaves, the same result was observed in wet seeds in most storage periods, showing that the technique was efficient maintaining the vigor of wet seeds after the storage period (Figure 5). Armondes et al (2016), when evaluating cabbage seeds subjected to the physiological priming technique, observed the benefits of osmopriming in artificially aged seeds. Arif et al (2014) also found benefits of using the physiological priming technique in soybean seeds, obtaining positive seed vigor results.…”

Section: Resultsmentioning

confidence: 99%

“…Physiological priming, also called seed conditioning, is a presowing treatment to improve the speed and synchronicity of seed germination. The positive uses of using this technique has been seen in several species, with improvements in seed germination capacity and greater seed uniformity and vigor, such as Armondes et al (2016) studying cabbage, Ruttanaruangboworn et al (2017) investigating rice, Abid et al (2018) with wheat and Arif et al (2014) studying soybean seeds.…”

Section: Introductionmentioning

confidence: 99%

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Effect of physiological priming on stored coffee seeds

et al. 2021

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The physiological priming has been used to standardize and increase the speed of development of seed lots. The use of this technique is essential in coffee cultivation, as the crop has low longevity associated with slow and uneven germination. The objective was to evaluate the effect of physiological priming on the physiological quality of coffee seeds stored with different water contents. Seeds of two cultivars of Coffea arabica were used: cv. Catuaí Vermelho IAC144 and Topázio MG1190. A portion of the seeds were dried in the shade until reaching 12% moisture, and the other did not undergo drying. The seeds were stored in a cold chamber at 10 °C for nine months. Every three months, the physiological priming technique was performed with subsequent evaluation of the physiological quality by germination tests, root protrusion, normal seedlings at fifteen days, strong normal seedlings, seedlings with expanded cotyledonary leaves and seedling dry weight. Seeds that did not undergo drying subjected to the physiological priming technique maintained physiological quality after nine months of storage. Physiological priming was detrimental to dry seeds stored for nine months.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of physiological priming on stored coffee seeds

et al. 2021

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“…This result is supported by the concept pointed out by Parera & Cantliffe (1994) about osmoconditioning, in which seeds undergo controlled hydration after a time of imbibition, with occurrence of the germination phases I and II without emergence of the primary root (phase III). In Brassica oleracea seeds, Armondes et al (2016) used a -1.0 MPa osmotic potential at 20 ºC in PEG solution for the physiological conditioning of the seeds. Silva et al (2016b) employed the same potential when they worked with osmoconditioning of Glycine max seeds with the purpose to determine its influence in grain yield.…”

Section: Discussionmentioning

confidence: 99%

“…There is scientific information supporting that osmoconditioning promotes significant gains in seed germination and vigor of vegetables (Batista et al, 2015;Armondes et al, 2016) as well as germination, emergence and seedlings vigor of crops such as Glycine max (Silva et al, 2016b), Phaseolus vulgaris (Coelho et al, 2010;Masuthi et al, 2015) and Helianthus annuus (Rabbani et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Seeds of Peltophorum dubium submitted to osmotic conditioning increases germination and vigor

Missio¹,

Nunes

Saldanha³

et al. 2018

Pesq. flor. bras.

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Peltophorum dubium (Spreng.) Taub. é uma espécie florestal nativa do Brasil utilizada em programas de restauração ambiental, paisagismo e construção civil. Sua propagação ocorre de forma seminal, porém, problemas na qualidade fisiológica das sementes aliados a ação de fatores bióticos e abióticos podem reduzir os percentuais de germinação e emergência. Neste contexto, técnicas que permitam a expressão do potencial fisiológico das sementes podem melhorar a germinação e o vigor em menor espaço de tempo. Uma destas técnicas é o condicionamento osmótico das sementes, o qual visa proporcionar a germinação mais rápida e uniforme, especialmente sob condições de estresse. O objetivo deste trabalho foi estudar se o condicionamento osmótico aumenta a germinação e o vigor de sementes de P. dubium. O estudo constituiu-se de três etapas: I – seleção do potencial osmótico ideal para a embebição; II - vigor e germinação de sementes osmocondicionadas e com diferentes teores de água; III - osmocondicionamento de quatro lotes de sementes com diferenças no vigor. A solução de PEG 6000 com -0,6 MPa é recomendada para o condicionamento osmótico de sementes de P. dubium com o objetivo de melhorar a germinação e o vigor. Sementes com teor de água próximo a 10% para o condicionamento osmótico influenciam positivamente o vigor. O condicionamento osmótico pode melhorar os aspectos fisiológicos de sementes de P. dubium com boa qualidade fisiológica, podendo reduzir o tempo de germinação e emergência e favorecendo os talhões com maior uniformidade e menor probabilidade de influência dos fatores bióticos e abióticos.

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“…The manual also advocates the use 200 seeds for the germination test, when so requested by the test applicant. Researchers conducted with vegetable seeds have typically used four replications of 50 seeds to determine the percentage of germination of seed lots (Silva and Cícero, 2014;Justino et al, 2015;Armondes et al, 2016;Nascimento et al, 2016). In studies with coriander seeds, four replications of 50 have also been commonly used for the germination test (Nascimento et al, 2006, Pereira et al, 2011, Torres et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Sample size for determination of the physiological potential of coriander (Coriandrum sativum L.) seeds

et al. 2019

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The objective of this work was to determine the minimum number of replications and seeds per replication to perform the germination and seed vigor tests with coriander seeds. Two seed lots were compared in terms of water content, vigor and viability. Eight hundred seeds per lot were used. Values of germination first count, germination, germination speed index and mean germination time were analyzed. Sample size scenarios were developed using different combinations of number of replications (from 2 to 10) and the number of seeds per replication (from 20 to 80) by means of a resampling with replacement technique. The reference sample consisted of four replications of 50 seeds, as it is commonly used in researches with this species. Determination of the minimum number of replications and seeds was based on comparing the 95% bootstrapped confidence intervals for the index of variation (CV/n0.5) of each scenario with the confidence interval of the reference sample. It is reasonable to reduce the number of seeds per replication from 50 to 30 in order determine germination first count, germination and germination speed index. Forty seeds per replication are recommended to quantify the mean germination time. However, reductions in the number of replications can affect negatively the accuracy of germination and vigor tests.

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

Cited by 5 publications

References 16 publications

Effect of physiological priming on stored coffee seeds

Effect of physiological priming on stored coffee seeds

Seeds of Peltophorum dubium submitted to osmotic conditioning increases germination and vigor

Sample size for determination of the physiological potential of coriander (Coriandrum sativum L.) seeds

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