Storage of Calophyllum brasiliense Cambess. seeds

Nery, Fernanda Carlota; Prudente, D.O.; Alvarenga, Amauri Alves de; Paiva, Renato; Nery, Marcela Carlota

doi:10.1590/1519-6984.08115

Cited by 8 publications

(10 citation statements)

References 14 publications

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“…As for guanandi seed storage, generally speaking, in all the tested environments the polyethylene packaging was the one that best preserved the physiological potential of seeds throughout the storage period ( Figure 2). Nery et al (2017) also observed that the use of polyethylene packaging (resistant to water vapor exchanges) was the most suitable for preserving moisture content of guanandi seeds.…”

Section: Discussionmentioning

confidence: 89%

“…Guanandi seeds, for being recalcitrant (NERY et al, 2017), do not tolerate intensive desiccation or the exposure to low temperature. In this study, it was observed that by maintaining a proper seed moisture content, the determining factor to maintain viability started to be the temperature, since when seeds were stored in polyethylene packaging, they presented no significant humidity reduction in three different environments; however, they maintained a higher quality during the entire storage period only under laboratory environment conditions, which presented in the period an average temperature variation between 19.6 and 23.1 °C.…”

Section: Discussionmentioning

confidence: 99%

“…Recalcitrant seeds, as Calophyllum brasiliense Cambess. (guanandi) (NERY et al, 2017) ones, are less favored by conventional storage techniques, which are based on water removal from seeds until very low limits, together with low temperature and relative air humidity; these conditions are not tolerated by recalcitrant seeds (BARBEDO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Determination of Moisture Content and Storage Potential of Guanandi Seeds

Silva

Grzybowski

Belniaki

et al. 2019

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ResumoDeterminação do teor de água e do potencial de armazenamento de sementes de guanandi. O guanandi é uma espécie florestal nativa com particularidades que dificultam o armazenamento das sementes, pelo seu comportamento recalcitrante e por não haver protocolo específico e prático para determinação do teor de água da semente. O trabalho teve por objetivo testar procedimentos para determinação do teor de água e estudar diferentes condições de armazenamento das sementes de guanandi. Para a determinação do teor de água utilizou-se o método estufa a baixa temperatura 101 -105 °C, testando-se formas de preparo da semente (íntegras, cortadas ao meio e fragmentos menores que 7,0 mm) e diferentes períodos de secagem. Para o armazenamento das sementes testaram-se quatro ambientes (câmara úmida, câmara seca, refrigerador e ambiente de laboratório), com dois tipos de embalagens, durante quatro períodos (0, 1, 2, 3 e 4 meses). Para análise estatística, um delineamento inteiramente casualizado, em esquema fatorial, foi utilizado para teor de água; de parcelas subdivididas para armazenamento. Realizou-se análise de regressão para avaliação do potencial fisiológico e teor de água durante o armazenamento, com ajuste da equação significativa pelo teste de Tukey. Pelos resultados obtidos observou-se que o método da estufa a baixa temperatura 101 -105 °C / 17 h, utilizando-se sementes íntegras, deve ser utilizado para a determinação do teor de água das sementes de guanandi. A melhor combinação entre ambiente e embalagem para armazenamento das sementes foi condição de ambiente de laboratório (média entre 19,6 -23,1 °C e UR 53 -62%) em embalagem de polietileno. Palavras-chave: Calophyllum brasiliense, conservação, recalcitrante, método da estufa. AbstractGuanandi is a native forest species with particularities that make it difficult to store of seeds, because of its recalcitrant behavior and since a specific and practical protocol to determine the moisture content of its seeds is not available yet. This work had the purpose to test procedures to determine the moisture content and to study different environmental conditions of the storage of the guanandi seeds. In order to determine the moisture content, the low-temperature oven method at 101 -105°C was used, testing seed preparation methods (intact, cut in half and fragments smaller than 7.0 mm) and different drying periods. Four environments (wet chamber, dry chamber, cooler and laboratory environment) were tested for the storage of the seeds, with two packaging types, during four periods (0, 1, 2, 3 and 4 months). For the statistical analysis, a completely randomized design, with a factorial arrangement, was used for moisture content; a split-split plot design was used for storage. A regression analysis was performed to evaluate the physiological potential and moisture content during the storage, adjusting the significant equation by Tukey's test. From the obtained results, it was observed that the low-temperature oven method 101 -105°C / 17 h, using intact seeds, should be used ...

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Determination of Moisture Content and Storage Potential of Guanandi Seeds

Silva

Grzybowski

Belniaki

et al. 2019

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“…Nery et al [40] tested different packages (paper, aluminum and polyethylene) and environmental conditions (cold room and ambient temperature) for the storage of Guanandi (Calophyllum brasiliense) and concluded that packaging in polyethylene and cold storage provided the best condition for the conservation of the seeds keeping them viable for a period of nine months.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Storage Potential of <i>Jatropha curcas</i> L. Seeds

Vieira¹,

Dardengo²,

Oliveira³

et al. 2017

AJPS

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Ensuring the physiological quality of the seeds depends on storage conditions. Since their quality cannot be improved, good conditions during this period will contribute on keeping them viable for a longer time, delaying the deterioration process. In the present study, the effect of five storage periods in a refrigerated chamber at 15˚C ± 1˚C, on the seeds viability during 30, 60, 90, 150 and 240 days of storage in glass containers was evaluated. Four replicates of twenty-five seeds per treatment were used and the data were compared by regression equation. It verified that, regardless of the storage time, the seeds when submitted to the drying temperature of 35˚C and 40˚C showed a significant linear reduction of germination, GSI and seed vigor after storage.

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“…The goal of the techniques that seek to improve the quality of forest seed lots is to select homogeneous material with high physiological potential, thus ensuring the best growth and establishment of the plants in the field. Consequently, there will be greater acceptance in the market and in reforestation activities (Amaral et al, 2011;Nery et al, 2017). This study aimed to analyze the physical properties of the seeds of M. polymorphum when processed by mini-SAS, X-ray and seed blower systems.…”

Section: Introductionmentioning

confidence: 99%

Physical quality of seeds of Moquiniastrum polymorphum

et al. 2019

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This study aimed to analyze the physical properties of the seeds of Moquiniastrum polymorphum when processed by mini-SAS, X-ray and seed blower systems. The seeds were purchased from Seeds Caiçara, located in Penápolis-SP. After purchase, the seed lot was characterized by standard tests. In the X-ray test the seeds were classified according to their internal morphology as filled, unfilled or malformed. The seed blower was set at six opening settings, resulting in light and heavy fractions. The evaluations were performed by weighing the seeds that remained in the blower (heavy fraction) and by the amount of filled seeds indicated by the X-ray test. The germination tests were composed of four replicates of 50 seeds. The mini-SAS was used for external evaluation. It was concluded that the combined use of the seed blower and the X-ray test was efficient for the evaluation and determination of the physical quality of the seeds of M. polymorphum. The seed blower at opening settings 5 resulted in the best lot quality. The external parameters were not able to qualitatively evaluate the seeds of M. polymorphum.

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Storage of Calophyllum brasiliense Cambess. seeds

Cited by 8 publications

References 14 publications

Determination of Moisture Content and Storage Potential of Guanandi Seeds

Determination of Moisture Content and Storage Potential of Guanandi Seeds

Evaluation of Storage Potential of <i>Jatropha curcas</i> L. Seeds

Physical quality of seeds of Moquiniastrum polymorphum

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Storage of Calophyllum brasiliense Cambess. seeds

Cited by 8 publications

References 14 publications

Determination of Moisture Content and Storage Potential of Guanandi Seeds

Determination of Moisture Content and Storage Potential of Guanandi Seeds

Evaluation of Storage Potential of &lt;i&gt;Jatropha curcas&lt;/i&gt; L. Seeds

Physical quality of seeds of Moquiniastrum polymorphum

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Product

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Evaluation of Storage Potential of <i>Jatropha curcas</i> L. Seeds