Armazenamento de sementes de aveia preta produzidas em solos de diferentes fertilidades

Nakagawa, João; Cavariani, Cláudio; Castro, Márcia Maria

doi:10.1590/s0101-31222004000200002

Cited by 8 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ullmann et al (2018) and Zucareli et al (2015) in studies on sorghum and carioca common bean, respectively, observed that seeds of these species stored with a higher moisture content deteriorate more rapidly, suggesting that moisture content is a factor that may considerably affect seed longevity. In contrast, in the present study, the seed moisture content in each environment over the storage period showed small changes, therefore indicating that the moisture content may not have been the most influential factor in maintaining the physiological quality of the seeds (Nakagawa et al, 2004).…”

Section: Resultscontrasting

confidence: 95%

“…These results corroborate those obtained for sudangrass (Sorghum sudanense) seeds, in which the refrigerator and freezer environments, followed by the dry chamber, led to more adequate conservation than the natural laboratory environment, which had faster loss of vigor (Toledo et al, 2007;Toledo et al, 2013). In black oat seeds, the refrigerator and freezer environments were also more favorable for conservation than the dry chamber environment and natural environment (Nakagawa et al, 2004).…”

Section: Dry Chambersupporting

confidence: 85%

“…Dormancy release after physiological maturity is an event controlled by various factors, resulting from changes in temperature and moisture content of the seeds, which trigger changes in hormones like ABA, phenolic compounds, and proteins in the seeds, and dormancy can be overcome (Nakagawa et al, 2004;Née et al, 2017;Bian et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

Silva

Toledo²,

Teixeira

et al. 2019

J. Seed Sci.

Self Cite

View full text Add to dashboard Cite

Millet is a species of the grass family used in cattle pastures, for hay, for silage, and in soil cover in no-tillage systems. However, studies on seed production and post-harvest techniques for this species have not been sufficiently developed, considering the demand for and potential of this crop. The objective of this study was to monitor the physiological quality of millet seeds stored in porous packaging. Millet seeds were stored under four ambient conditions (natural laboratory environment, dry chamber, refrigerator, and freezer). Physiological quality was evaluated by germination and vigor tests before and during storage each year, up to six years for the dry chamber and natural laboratory environment, and up to 12 years for the refrigerator and freezer. Analysis of variance was conducted on the data, which were in 4 × 6 and 2 × 12 (environment and storage period) factorial arrangements. The means of the environments were compared by the Tukey test (p ≤ 0.05) and the storage periods by regression analysis. The germination capacity of millet seeds is best conserved in a refrigerator and freezer, and they remain viable for up to twelve years of storage under these conditions.

show abstract

Section: Resultscontrasting

confidence: 95%

Section: Dry Chambersupporting

confidence: 85%

See 1 more Smart Citation

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

Silva

Toledo²,

Teixeira

et al. 2019

J. Seed Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Verificou-se, também, que as sementes de sorgo-sudão apresentaram melhor conservação sob condições de baixa temperatura e umidade relativa. Os resultados corroboram com os obtidos por Nakagawa et al (2004), que concluíram que, dentre os ambientes testados, a refrigerador e freezer mostram-se mais favoráveis à conservação de sementes aveia preta comparativamente ao ambiente de câmara seca. …”

Section: Tabela 3 Comprimento Da Parte Aérea (Cpa Cm) Comprimento unclassified

Efeitos do ambiente de armazenamento na qualidade de sementes de sorgo-sudão

Toledo

Cavariani

Nakagawa

et al. 2007

Rev. bras. sementes

Self Cite

View full text Add to dashboard Cite

RESUMO -O trabalho objetivou avaliar efeitos do ambiente de armazenamento na qualidade de sementes de sorgo-sudão (Sorghum sudanense (Piper) Stapf) de diferentes procedências. Cinco lotes de diferentes origens foram armazenados por nove meses, acondicionados em sacos de papel unifoliado, em quatro condições ambientais: ambiente natural de laboratório (sem controle de umidade relativa e temperatura); 30 a 40% de umidade relativa e sem controle de temperatura (simulada através de câmara seca); 10 a 15% de umidade relativa e 5 a 7ºC de temperatura (simulada através de um refrigerador Frost Free); 40 a 50% de umidade relativa e -20ºC de temperatura (simulada através de freezer). As avaliações laboratoriais, realizadas em intervalos trimestrais, foram: teor de água, massa de mil sementes, germinação, crescimento de plântulas, massa seca de plântulas, envelhecimento acelerado, condutividade elétrica, emergência em campo e índice de velocidade de emergência. O delineamento utilizado foi o inteiramente casualizado, com quatro repetições, num esquema fatorial 4 x 5, e comparação de médias pelo teste de Tukey a 5% de probabilidade. A origem das sementes, relacionada à qualidade das mesmas, mostrou-se como o principal fator a influenciar a conservação. Os ambientes refrigerador e freezer, seguidos da câmara seca, mostraram-se adequadas à conservação de sementes de sorgo-sudão. A capacidade de conservação de sementes dessa espécie relaciona-se com a sua qualidade inicial dependente da sua origem.Termos para indexação: Sorghum sudanense, vigor, germinação, condições de armazenamento, origens EFFECTS OF STORAGE ENVIRONMENTAL CONDITIONS ON SORGHUM SEEDS QUALITYABSTRACT -The research had as objective the evaluation of the effects of storage environmental conditions on the quality of sorghum (Sorghum sudanense (Piper) Stapf) seeds from different origins. Five lots from different origins were stored for nine months, in paper bags, in four environmental conditions: natural laboratory environment (without relative humidity and temperature control); 30 to 40% relative humidity and without temperature control (simulated by a dry chamber); 5 to 7% relative humidity and 10 to 15ºC temperature (simulated by a Frost Free refrigerator); 40 to 50% relative humidity and -20ºC temperature (simulated by a freezer). Quarterly laboratory evaluations consisted of seed water content, weight of 1000 seeds, germination, seedling growth, seedling dry weight, accelerated aging, electrical conductivity, seedling emergence in the field, and speed of emergence-index. A completely random design was employed, as a 4 x 5 factorial experiment (environmental conditions x lots), with four replications. The origins of the seeds, related to their quality, was shown to be the main factor that influenced their conservation. The

show abstract

“…According to Toledo et al (2007), in the first stage of this study, storage of sudangrass seeds in frost free e freezer environments improves physiological quality. Similarly, Nakagawa et al (2004) found that maintaining seeds in frost free and freezer conditions can preserve physiological quality of black oat seeds compared to storage in dry chamber. However, it is possible those environment conditions become inappropriate to preserve quality as storage time progresses and deleterious effects of low temperature begin to take place.…”

Section: The Equation Adjusted To Mean Germinationmentioning

confidence: 93%

Extended Storage of Sudangrass Seeds

Toledo¹,

Cavariani²,

Nakagawa³

et al. 2013

Revista Brasileira de Milho e Sorgo

View full text Add to dashboard Cite

RESUMO -O sorgo-sudão se destaca por sua tolerância à seca e estresse salino. No entanto, estudos sobre produção de sementes e técnicas de pós-colheita são insuficientes considerando-se a demanda e o potencial desta cultura. Este estudo objetivou monitorar a qualidade fisiológica de sementes de sorgo-sudão armazenadas em diferentes condições ambientais por um período de 18 meses. As sementes de sorgo-sudão foram armazenadas sob quatro condições (ambiente natural, câmara seca, geladeira frost free e freezer). A qualidade fisiológica foi avaliada por testes de germinação e vigor antes e durante o armazenamento, semestralmente, até 18 meses. Os dados foram submetidos à análise de variância e analisados em esquema fatorial 4 x 4, com médias de ambientes comparadas pelo teste de Tukey (p≤0,05) e períodos de armazenamento por análise de regressão. A velocidade a porcentagem de emergência de plântulas de sorgo-sudão são reduzidas a partir de 15 meses de armazenamento das sementes enquanto que a germinação, o desenvolvimento das plântulas e o peso são preservados até 18 meses. O armazenamento das sementes em ambiente natural ocasiona decréscimo no vigor mais rapidamente do que em câmara seca, geladeira e freezer, apesar do maior crescimento das plântulas nesta condição comparativamente às demais.Palavras-chave: Sorghum sudanense; germinação; conservação; qualidade fisiológica. ARMAZENAMENTO PROLONGADO DE SEMENTES DE SORGO-SUDÃOABSTRACT -Sudangrass stands out for being tolerant to drought and saline stress. However, studies on production of seeds and post-harvest technologies are insufficient considering both the demand and potential of this crop. This study aimed to monitor physiological quality of sudangrass seeds stored under different environmental conditions for a period of 18 months. Sudangrass seeds were stored under four conditions (natural environment, dry chamber, frost free, freezer). Physiological quality was assessed before storage and then every semester until 18 months by germination and vigor tests. Variance tests were applied for statistical analysis and means were compared as a 4 x 4 factorial.

show abstract

Armazenamento de sementes de aveia preta produzidas em solos de diferentes fertilidades

Cited by 8 publications

References 7 publications

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

Influence of the storage environment on the physiological quality of millet seeds (Pennisetum glaucum (L.) R. Br.)

Efeitos do ambiente de armazenamento na qualidade de sementes de sorgo-sudão

Extended Storage of Sudangrass Seeds

Contact Info

Product

Resources

About