Effect of carbon dioxide on quality of rice seeds

Aguiar, Raimundo Wagner de Souza; Brito, Deyvid Rocha; Lopes, Magnólia de Mendonça; Silva, Rubens Ribeiro; Fidélis, Rodrigo Ribeiro; Sousa, Clovis Maurilio de; Santos, Gil Rodrigues dos

doi:10.14393/bj-v31n5a2015-26525

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…This fact may be related to the reduction of degradation rates in this system, due to the higher concentration of CO 2 in the intergranular atmosphere (Jonfia-Essien et al 2010), which reduces seed respiration, thus slowing down the degradation process. This was also demonstrated by Aguiar et al (2015), studying rice seeds stored under high CO 2 concentrations. They observed a higher germination percentage during storage.…”

Section: Resultsmentioning

confidence: 54%

Physiological performance of wheat seeds as a function of moisture content at harvest and storage system1

Scariot

Radünz

Dionello

et al. 2017

Pesqui. Agropecu. Trop.

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The physiological performance of wheat seeds may be influenced by the harvest season and storage system. This study aimed at evaluating the physiological performance of wheat seeds as a function of different moisture contents at harvest, with later storage under hermetic and conventional systems. Harvest was performed when the seeds reached moisture contents of 28.6 %, 18.5 % and 12.9 %. Subsequently, they were stored for 240 days, in both systems, at room temperature. The evaluation of seed physiological performance was carried out by germination and vigor tests, shoot length and dry matter of seedlings. The germination of wheat seeds stored under the hermetic system increased up to 180 days of storage, due to the seed dormancy breaking, with a subsequent decrease of the values, while those stored under the conventional system showed a linear decrease of germination throughout the storage. The hermetic system provided an increase in seed vigor up to 120 days of storage and, after this period, there was a reduction of the values. The conventional system promoted a linear reduction of seed vigor throughout the storage, except for the results obtained in the tests of first germination count and germination speed index, which showed an increase up to 60 days of storage. Harvest delay negatively influenced seed germination and vigor, regardless of time and storage system. The combination of harvest anticipation and hermetic storage improves the physiological performance of seeds over time.

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Section: Resultsmentioning

confidence: 54%

Physiological performance of wheat seeds as a function of moisture content at harvest and storage system1

Scariot

Radünz

Dionello

et al. 2017

Pesqui. Agropecu. Trop.

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“…Para a conservação de frutas, por exemplo, a concentração adequada de cada gás varia de acordo com a espécie e o produto armazenado, mas geralmente o O 2 é reduzido de 20,9% (concentração normal da atmosfera) a valores entre 1% e 3% e o CO 2 elevado de 0,03% (normal da atmosfera) a níveis entre 2% e 20% (Brackmann 2007). Em sementes, trabalhos realizados com arroz (Oryza sativa L.) e feijão (Phaseolus vulgaris L.), por exemplo, tem demonstrado algum controle na respiração quando as concentrações de O 2 e CO 2 são alteradas (Aguiar et al 2015, Coelho et al 2020. Contudo, na maioria das vezes o objetivo é o controle de insetos e microrganismos (Jayas & Jeyamkondan 2002), e não propriamente as taxas respiratórias das sementes.…”

Section: Introductionunclassified

Taxas respiratórias de sementes de Eugenia brasiliensis Lam. (Myrtaceae) sob atmosferas modificadas

Cécel

Barbedo

2021

Hoehnea

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RESUMO (Taxas respiratórias de sementes de Eugenia brasiliensis Lam. (Myrtaceae) sob atmosferas modificadas). O sucesso da conservação de sementes se resume à redução tanto do seu metabolismo quanto de outros organismos associados a elas. Uma das formas de se avaliar a intensidade metabólica é analisando-se as taxas respiratórias, mas há necessidade de se desenvolver protocolos metodológicos para isso. Além disso, atmosfera modificada tem demonstrado algum controle na respiração quando as concentrações de O2 e CO2 são alteradas. Neste trabalho, avaliou-se o efeito da alteração das concentrações de O2 e CO2 do ambiente em que sementes foram armazenadas de maneira a inibir o metabolismo respiratório das sementes de Eugenia brasiliensis Lam. Os resultados demonstraram que em atmosferas com concentração de CO2 entre 1,9% e 3,7% é possível diminuir o metabolismo respiratório dessas sementes. Além disso, é apresentado um modelo que permite controlar os fatores envolvidos na análise das taxas respiratórias em sementes.

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“…In normal atmosphere conditions, the concentrations of nitrogen (N 2 ), oxygen (O 2 ), and carbon dioxide (CO 2 ) are 78%, 21%, and 0.04% respectively, along with small percentages of other gases. In order to increase the shelf life of products stored under controlled atmospheres, it is necessary to reduce O 2 concentrations to 1-3% while increase levels of CO 2 to 2-20% (de Souza Aguiar et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

NMR and LC-MS assessment of compound variability of common bean (Phaseolus vulgaris) stored under controlled atmosphere

Coelho

Filho

Silva

et al. 2020

LWT

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Effect of carbon dioxide on quality of rice seeds

Cited by 5 publications

References 22 publications

Physiological performance of wheat seeds as a function of moisture content at harvest and storage system1

Physiological performance of wheat seeds as a function of moisture content at harvest and storage system1

Taxas respiratórias de sementes de Eugenia brasiliensis Lam. (Myrtaceae) sob atmosferas modificadas

NMR and LC-MS assessment of compound variability of common bean (Phaseolus vulgaris) stored under controlled atmosphere

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